Embrace Thistles

Posted on September 28, 2016 by Brad Guhr

I encourage you to embrace thistles. Our South Central Kansas native species are colorful and attractive to pollinators. With the abundance of precipitation we’ve received this year, it has been a great year for plant growth and flowering, and thistles have certainly been among the benefactors. Don’t be so quick to dig out every plant you find.

Delaware skipper on tall thistle

Non-Native Thistles

Thistles are an often prickly topic and one to make many prairie landowners bristle. A number of thistle species are on the Kansas noxious weed list, including bull thistle (Cirsium vulgare), Canada thistle (Cirsium arvense), and musk thistle (Carduus nutans). So, it is no wonder, that the mention of these species makes us cringe. When present on a site, they are often dominant and problematic.

Non-native bull thistle (Photo by Mike Haddock)

Non-native bull thistle (Photo by Mike Haddock)

Non-native Canada thistle

Non-native musk thistle (Photo by Mike Haddock)

Native Thistles

There are, however, two native thistles found on our South Central Kansas prairies that often get a bad rap because they are confused with their noxious and more invasive relatives. The native species, undulating thistle (Cirsium undulatum) and tall thistle (Cirsium altissimum) are the only thistles I have found on most South Central Kansas prairies I visit. They have beautiful flowers and play an important role as a nectar source for many species of butterflies and other insects. When in the peak of their respective bloom times, undulating and tall thistle flowers are hot spots for a host of insect pollinators, the predators that eat these insects, and birds (especially finches), who will later eat the seeds.

Native undulating thistle (Photo by Mike Haddock)

Native tall thistle (Photo by Mike Haddock)

Contrast between green upper and white lower surfaces of native tall thistle leaves

The following table provides more information about the native and non-native species found in Kansas. Thanks to Mike Haddock (http://www.kswildflower.org) for some of the photos and information compiled for this post.

Regal fritillary on tall thistle

More Than Monarchs – All Pollinators Need Our Attention

Posted on September 14, 2016 by Katie Schmidt

Milkweed is always a sellout item at our plant sales. The plight of the monarch has caught the public’s attention as few conservation efforts ever have. It is encouraging to see citizens so galvanized behind an environmental cause!
But I wonder if by focusing on one favored butterfly we aren’t seeing the bigger picture – many pollinators are in trouble, not just the cute ones. Bees, beetles, flies, moths … numerous species are in frightening decline. Even the beloved firefly is struggling. These important critters contribute to our way of life through agriculture, science, and stabilization of food webs. It is going to take more than milkweeds to help bring back our pollinator populations. Following are links to organizations and reference information that can help you be effective in the fight against pollinator loss.

Pollinators Come in All Shapes and Sizes

Ants are pollinators, wasps are pollinators …beetles and midges and even bats! Butterflies may be the most flashy and charismatic pollinator, but let’s not make it a popularity contest. If you are interested in being part of the pollinator conservation movement, be sure your efforts include multiple pollinator species. Click here for a slideshow of pollinator facts, or here to learn about the many different species of pollinators in Kansas.

Find this book by Heather Holm in our gift shop – plant and insect profiles to help you host a pollinator palloza!

Season Long Nectar is Critical

Variety is the spice of life! Try to plant several species of wildflowers with varying bloom times, providing nectar sources that stretch through the season. Different pollinator populations peak at various times through the warm months, so provide for them by having a long blooming garden. Early spring and late fall flowers can help sustain migrating species in the difficult stages of their journey. Research from Cornell concerning east coast monarch migration suggests lack of late season nectar is more crucial to their success than milkweed. Help these insects get the energy they need all through year!

Host Plants that Work in Your Area

Want to nurse some larvae in your backyard? Find the host plants that cater to pollinators in your area. Milkweeds (Asclepias sp.) host monarch caterpillars, yes, but another plant to try is spicebush (Lindera benzoin) for the tiger swallowtail. Rattlesnake master (Eryngium yuccafolium) hosts the borer moth (Papaipema eryngii), also a favorite of wasps. Do your research before you plant to ensure that your garden will be appealing to pollinators native to your region. This link has great information on how to create pollinator habitat in the Great Plains region. This one has planting guides for US ecoregions.

Tiger Swallotail By BLM Nevada (Tiger Swallowtail Butterfly) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

Tiger Swallowtail, By BLM Nevada (Tiger Swallowtail Butterfly) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

“Great golden digger wasp with sand wasp in background” on a rattlesnake master flower. Image from North Carolina Museum of Natural Sciences

Team Up With The Little Guys

We have all heard of organizations that rescue cats and dogs or save pandas from poaching. But who is looking out for the little guys? There are some wonderful organizations fighting to protect threatened species of insects and other invertebrates. Consider giving your time, talents or money to these organizations to help them carry out conservation projects. Check out their websites for helpful resources.
The Xerces Society “is a nonprofit organization that protects wildlife through the conservation of invertebrates and their habitat.” They have ongoing programs for butterfly and pollinator conservation. Monarch Watch is a nonprofit that focuses on education and conservation efforts for the monarch butterfly, based at the University of Kansas.
Pollinator Partnership is “dedicated exclusively to the protection and promotion of pollinators and their ecosystems.”

As you continue to create monarch weigh stations with proud stands of milkweed, remember that there are lots of other less popular pollinators that need our care and concern. Wasps, bees, ants and beetles may not be as beautiful as butterflies, but they too contribute to the balance of our ecosystem.

Five Reasons Why Fall is for Planting

Posted on August 31, 2016 by Scott Vogt

I have people ask me all the time at our FloraKansas plant sale if fall is a good time to establish plants. My answer is “Yes, it is a GREAT time to plant!” In fact, it’s a perfect time to plant just about anything other than annuals, but especially trees and shrubs. (Be sure to download our TREE COUPON and bring it with you to FloraKansas.)

I don’t know why this fall planting message is not resonating with all gardeners. We may be worn out from managing the plants we installed in the spring or we are busy with other things and not focused on what our gardens will need to be ready for next year. Whatever the reasons, experience tells me that you will be rewarded for working on your landscape this fall. Here are five reasons why:

#1 Warm Soils

Because the soil is still warm from the summer, the roots will continue to develop until the first frost. In our area, this occurs around mid-October. However, trees and shrubs will root until the ground freezes. In the spring, these plants will have developed root systems that are actively growing and ready to produce flowers and survive the hot summer months. Two years ago, we planted twenty-five butterfly milkweed and twenty-three survived the winter. All of these plants bloomed again this summer.

#2 Reduced stress

Transplanting causes stress on plants as they are introduced to a new environment. This shock is reduced by planting in the fall because the plant is entering dormancy. The growth is moving from above ground to below ground and root systems are storing energy reserves for next year. Fall transplants have this vital time for root development before winter. Transplanting in the spring, on the other hand, causes additional stress and plants may hardly recover from transplant shock before the demands of summer set in. The overall plant health is improved for next year by starting with transplanting this fall.

#3 Less weed competition

We have found that when planting in September there are fewer problems with weeds such as crabgrass and foxtail. Transplanting in fall allows plants to get a head start for next season without competing with problematic weeds. Remember to mulch around the plants after the first freeze to help moderate soil temperatures, control winter annual weeds such as henbit, and hold soil moisture through the winter. Keep mulch away from the base of plants to allow proper air exchange.

Pale coneflowers blooming the next spring after planting.

#4 Fewer Pests

All those pesky bugs are less active in the fall. They are not nibbling or sipping on your plants. With their life cycles nearly complete, they are looking for homes to survive the winter. Fewer bugs means less-stressed plants that will have a chance to get properly rooted.

#5 Beneficial Rains

Warm days and cool nights provide an ideal environment for transplanting and growth. Typically, fall brings many cool, cloudy days with frequent precipitation. Warm sunny days can cause stress on new transplants. Cooler nights and morning dew allow plants to recover each night. Beneficial autumn rains will eliminate some daily watering.

Here at the Arboretum, we prefer to plant in the fall because we have more time and have seen the benefits first hand. We are usually very busy in the spring readying the gardens. It is nice to see plants that were started in the fall jumping to life and even blooming that next year. As an encouragement to plant trees this fall, bring this TREE COUPON to the sale to receive an additional discount.

Whenever you plant, whether spring or fall, the ultimate goal is to create a landscape you can enjoy. If you need some ideas to get you started, check out these sample landscape designs and our 2016 Native Plant Guide.

Plant Profile: The Gayfeathers

Posted on August 24, 2016 by Scott Vogt

Gayfeathers are truly iconic symbols of the prairie. Also known as blazing stars, these distinctive plants occur throughout Kansas grasslands. Seven species are native to our state, all blooming during late summer and early fall. Producing upright spikes crowded with rose-purple flower heads, gayfeathers add a distinctive dimension to late-season landscapes dominated by asters, sunflowers, and goldenrods.

Kansas Gayfeather, Liatris pycnostachya

Four species of gayfeathers can be found in the Arboretum’s living collections. Kansas gayfeather or thickspike gayfeather (Liatris pycnostachya) is the tallest, reaching up to five feet in height. It is a plant of the tallgrass prairie of eastern Kansas. Button blazing star or rough gayfeather (L. aspera) occurs in drier habitats and is generally about three feet tall. Two other species, L. mucronata and L. punctata grow from one to three feet in height. Liatris punctata occurs throughout the state and is the most drought tolerant of the gayfeathers.

Liatris and Indian grass in the Prairie Window Project

Button Blazing Star or Liatris aspera and Indian grass in the Prairie Window Project

LiatrisPunctata_LincolnKS_PRoberts_16Sept1983_00518

Dotted Gayfeather, Liatris punctata

Gayfeathers are not only beautiful in their natural settings, they also make very fine garden plants. Thickspike is the species most likely to be sold by nurseries and garden centers. We will have most of these species at our FloraKansas Plant Sale. They all appreciate a sunny flower bed or border. Adding to their value as garden plants, gayfeathers are also attractive to many butterflies and other pollinators. In addition, the spikes make excellent cut flowers, either fresh or dried.

Six Elements of a Beautiful Fall Garden

Posted on August 10, 2016 by Scott Vogt

I have said it before that fall is my favorite time of the year. It means that the hottest days of summer will be replaced by autumn’s cool mornings and warm afternoons. The landscape is transformed by subtle, incremental changes that are unique every year. I have seen hints that these shifts are already happening, which is exciting. As a gardener, I gain a deeper appreciation of autumn’s exquisite beauty each year.

Fall should be the crescendo of your garden. The culmination of your time and effort with every element fitting harmoniously together. So how do you set the stage to make a grand statement with your landscape in the fall? Here some essential elements that I consider as I design a garden, especially if you want to create a show later in the season.

Textures and seedheads

When you look at a prairie in the fall, native grasses dominate the landscape. They are in full bloom with interesting seedheads and colorful stems. Grasses provide texture and movement in the garden, plus they are extremely hardy. They move with the gentlest breeze and rustle as the north wind ushers in cooler weather. I like to use grasses as backdrops for other perennials. The dark brown coneflower seedheads really stand out in the slender red stems of little bluestem. The red leaves of Penstemon ‘Dark Towers’ look great with Panicum ‘Northwind’ switchgrass. Mix and match grasses with perennials both tall and short. You really can’t go wrong by taking advantage of different types of leaves and including native grasses in your design.

moblkeyedsusan_littlebluestem_3-6-03-eweaver

Little Bluestem and Coneflower Seedhead Photo by Emily Weaver

Layers of Plants

Layering plants is the best way to mimic nature. It is critical to have the canopy of trees stair stepped down to understory trees and shrubs extended outward with native wildflowers and grasses. Each of these layers can have a diverse selection of plant material that adds form, structure, and beautiful fall colors. Everything that wildlife needs for survival can be included in these layers as well. Place maples and oaks in the back with dogwoods, viburnums, serviceberries and crabapples in the middle layer, and a host of wildflowers, grasses, and shorter shrubs such as sumac spreading into the sunlight away from the shadow of the trees.

October Skies Aromatic Aster, Purple Dome New England Aster and Little Bluestem

Interesting Lines

I develop eye-catching lines and curves either through the use of plants or edging. Curves can lead you through the garden or take you gently around a corner to reveal a piece of art or focal point. Rather than straight lines, try undulating your borders. It gives the illusion of extra space while drawing your eye along the border. Also, curves relieve the linearity of most gardens. I use ‘October Skies’ aromatic aster or shorter grasses such as Bouteloua ‘Blonde Ambition’ or prairie dropseed along these borders for dramatic effect.

Fall Color

You can enjoy a colorful fall garden through leaf color or blooms. Maple trees like ‘John Pair’ or ‘Autumn Splendor’ develop beautiful fall color. I love the blooms of Asters and goldenrods late in the season. They extend the blooms well into September and October. Native grasses are transformed from green to splendid shades of reds, oranges, and yellows. Amsonia hubrichtii turns butter yellow and a large mass of them is quite stunning. This is one of my favorite plants because it has multiple seasons of interest.

PanicumVirgatumAndSolidagoRigida_EWeaver_13Sept2002_00274

Switchgrass and Rigid Goldenrod Photo by Emily Weaver

Amsonia hubrichtii Photo courtesy Walters Gardens.

Use of light

The lower angle of the autumn sun can transform a garden. Take advantage of its glow with bright fall colors and interesting forms. The late evening light illuminates native grasses in exquisite ways. ‘Tiger Eyes’ sumac with its chartreuse foliage that changes to oranges and yellows as the season progresses can brighten up a dark corner of your garden.

Frame the Views

Look for areas in your garden worth highlighting such as an arbor, a bench or a piece of art. You can leave a narrow swath of lawn with perennials and shrubs on either side that lead to this focal point. Interesting lines and diverse plants will only add to the intrigue and beauty of this space. It is another trick you can use to draw people into the garden.

In fact, all these elements will draw you into the garden this fall. They will help you transform your landscape into a beautiful and functional space. By thinking about or adding just of few of these elements, you will be rewarded as your garden transitions from summer to fall.

Celebrating Silphiums

Posted on August 3, 2016 by Brad Guhr

Late July to early August is a great time of the year to be celebrating Silphiums. Scott wrote a Silphium post last summer highlighting the four species we can grow well in south central Kansas. I noticed during a recent walk around the Arboretum how brilliantly all four of these species are flowering right now and felt that they were worth recognizing once again. Review Scott’s post at the link above to become familiar with the four species we have in the Arboretum. I’ll touch on a few additional features of this genus in more depth.

Leaf Orientation and Morphology

Compass plant gets its name because the leaves tend to orient north and south and take advantage of cooler morning and evening sunlight to photosynthesize. When the sun is directly overhead during hotter times of the day, compass plant leaves have less direct sun exposure to minimize heat buildup and moisture loss. Cup plant does the same thing. Go HERE for an article in the American Journal of Botany for more on this topic.

Leaf morphology (or shape and form) plays its part too. Deeply lobed compass plant leaves have greater surface area than cup plant, which may translate to a more efficient heat radiating capacity (think of the function of a car radiator with all its coils and fins to maximize cooling potential).

Compass plant leaf

Cup plant leaf

Of the four species that Scott highlights, cup plant is the only Silphium species that doesn’t have a native range in Kansas (even though it seems to grow well here). Its range is east and north of Kansas where average precipitation levels are higher and temperatures are lower. Compass plant extends into drier and warmer climates and so this difference in leaf morphology between the two species may be a plausible adaptation for dealing with climate variation. Dense white hairs on Silphium leaves also help reflect sunlight and reduce wind speeds at the leaf surface. Both can reduce moisture loss.

White hairs on compass plant leaf

Comparison to Sunflowers

Even though Silphiums are in the sunflower family (Asteraceae), they differ physiologically in their seed formation. You probably know that typical sunflower family flowering heads have both disc and ray florets. The ray florets act as sterile pollinator attractors and the disc florets are the seed producers. Our state flower, annual sunflower (Helianthus annuus), is one good example. Silphiums are just the opposite in that the attractive ray florets are the seed producers. Botany geeks are fascinated by these kinds of things, but I’m sure the more casual observer will find this equally as riveting.

Fertile ray florets blooming on compass plant

Flat, dark seeds have formed from compass plant disc florets

Easy to Grow

When it comes to growing native plants in your landscape, few are easier to establish than Silphiums. That’s the positive way to look at it. If you ask anybody who has had experience growing Silphiums as an ornamental in their manicured landscape, they will probably cite that they are invasive and problematic. Some use more pointed, even colorful language. You won’t notice this for the first few years while they are establishing. But when they start flowering in year four or five and seeds start dropping, that is when the invasion begins. Because each Silphium plant grows to a sizeable diameter of three feet or more, and the plants grow to a substantial height, they can become downright bullies.

So, we still encourage people to enjoy Silphiums for all the apparent reasons…colorful flowers during the heat of the summer, interesting foliage, and a great attractor of all sorts of insects via flowers and vegetation. But plant them in an area such as a prairie restoration or a less ornamental landscaped area where you won’t be as concerned with its aggressiveness or be judicious with deadheading. Keep scale in mind too with regard to the 6-9 feet height of Silphiums and the size of your planting area, as taller plants fit better in bigger planting areas.

Compass plant has spread and come to dominate this 15 year-old planted bed.

Rosinweed in the foreground and compass plant in the back seem to thus far be balanced in a diversely-planted and highly competitive five year-old reconstructed prairie environment.

Finally, if you have identified the appropriate area and decide to add Silphiums to your landscape, you might as well add some complementary purple flowers like ironweed and gayfeather. They bloom at the same time and add visual enjoyment and pollinator sources. These species along with Silphiums will add great interest to your landscape.

Western ironweed (Vernonia baldwinii)

Kansas gayfeather (Liatris pycnostachya)

A Weed By Any Other Name

Posted on July 20, 2016 by Katie Schmidt

Here at the Dyck Arboretum it can be a tricky task deciding what is a weed to be pulled and what should be allowed to grow on. Many of our beloved volunteers look to me for guidance when they encounter a plant that looks out of place. What is a weed here?

Many wonderful prairie plants carry the misnomer of “weed”, such as butterfly weed, iron weed, and milkweed. These are plants that may or may not need to be pulled, depending on where they are located. I consider a few factors: does the plant belong here or fit the theme of that garden bed? Is it annual or perennial? Will it become invasive? Is it part of a plant family that is notorious for colonizing? …and so on. Weeding will become less of a guessing game when you learn to identify some native species and particularly those nasty exotics.

While the name ‘milkweed’ might cause you to shun this plant for your garden, think before you pull! In the right area, milkweeds may be a perfect addition. They will bloom for several weeks and add a bit of important monarch habitat to your backyard. Photos from Dyck Arboretum.

“Where do they come from and how can I beat them?”

Just when you think you have weeded every last square inch of your garden, here they come again. The seed bank – dormant seed that exists in the top soil – will continue to produce more weeds as long as conditions are favorable. Seeds can lay dormant in the soil for long periods of time, waiting for adequate moisture and light levels. Bindweed seed can remain viable in the soil for up to 50 years! The seed bank is created by last year’s mature weed seeds, bird droppings, hay/manure used for mulching, and seeds carried on the wind. The good news? With regular weeding and mindful practices you will decrease your weed seed bank every year. That means pulling weeds before they seed, using carefully sourced mulch material, and disturbing the soil as infrequently as possible to reduce the amount of dormant seeds awakened by light and oxygen.

Some weeds are obvious

Bindweed with it’s morning glory bloom, Siberian Elm saplings with their small serrated leaves, and prostrate spurge with its circular, flat habit all send up the red flag. These kinds of plants look out of place right away because they lack charisma and often grow in inhospitable areas. (i.e. in driveway cracks and gravel, climbing up stems of other plants).

Some weeds are ambiguous

Virginia creeper vine seems to crop up everywhere, and are very decorative if left to grow in a good spot. But they can also be aggressive when not trimmed regularly. Similarly, a mulberry sprout (which tend to come up just about everywhere a bird flies over), could be left to grow into a nice fruiting tree if you are prepared for the berry-mess and seed spread. Plants like ironweed and Illinois bundleflower seem to pop up everywhere and, though they can be aggressive spreaders, they are also quite attractive.

Ironweed (Vernonia sp.) may at first appear as an intruder, but it produces a colorful, longlasting bloom and is a favorite of swallowtails and many species of bees.

Ironweed (Vernonia sp.) may at first appear as an intruder, but it produces a long lasting bloom and is visited by many species of bees. Photo from Dyck Arboretum.

Some weeds are not weeds at all

I always advocate for leaving milkweed in the garden as habitat for monarchs. Lucky you if a few come up! Other species like purple poppy mallow and wild petunia that may appear weedy at first actually make well behaved native specimens. These species bloom all summer long and are extremely drought tolerant.

While you pull and pluck away at the weeds in the garden, remember the wise words of the poet Ella Wheeler Wilcox – “A weed is but an unloved flower”. Although weeding is the tedious task all of us gardeners must endure, you can make it easier and more productive by knowing the difference between potential friend and foe.

Shrubs for Bees

Posted on July 6, 2016 by Scott Vogt

A well-designed garden has many different forms, colors, heights, bloom times and textures. Plants are integrated in ever-changing combinations that should be appealing to us and the wildlife we are trying to attract. Obviously, pollinators depend on diversity of plants and being able to find the food they need. Shrubs are an important nectar source for many different pollinators, particularly for bees. By including just a few of these in your own landscape, you can have a beautiful and productive garden that makes a difference in their survival. Here is a list of shrubs for bees to feast upon.

Small Deciduous Shrubs (1-3 feet tall)

Black Chokeberry–Aronia melanocarpa-The tiny white blooms of this ornamental shrub attract many different types of bees. The black fruit is a bonus to be eaten fresh or left for wildlife. Look for varieties like ‘Autumn Magic’, ‘Iroquois Beauty’ or ‘Viking’ to add to your garden.

Black Chokeberry

Western Sand Cherry–Prunus besseyi ‘Pawnee Buttes’-This wonderful, easy to grow landscape plant has an abundance of sweetly scented flowers in the spring followed by black cherries in the summer. The glossy green leaves turn shades of red and purple in the fall. It only grows to 18 inches tall by 4-6 feet in spread making it a fantastic ground cover.

Coralberry–Symphoricarpos sp.-This is a shrub that is grown for its ornamental berries. However, the tiny blooms are gladly used by bees. The summer’s flowers swell into pinkish white pearls along arching stems. The fruit is persistent well into winter. “Candy™’ or ‘Galaxy™’ are forms with great fruit clusters.

Lead Plant–Amorpha canescens-This is a great butterfly bush alternative. The purple flower spikes in late spring atop the silvery gray foliage are extremely attractive. Bees cover these plants while blooming. It is a native wildflower that thrives in a sunny spot.

Lead Plant

Medium to Large Deciduous Shrubs (4-10+ feet tall)

Buttonbush–Cephalanthus occidentalis-The unusual, fragrant flower balls of this native shrub are magnets to a host of pollinators. I have seen up to two dozen swallowtail butterflies on one plant when in bloom. ‘Sugar Shack®’ is a shorter form that works well in the landscape.

Buttonbush

Elderberry–Sambucus canadensis-As you drive the highways in summer, this shrub is everywhere. The creamy white blooms pop out of the landscape especially against the glossy green foliage. These flat topped clusters of flowers make great landing pads for bees. The fruit is tasty and very high in antioxidants. ‘Adams’ and ‘York’ are native forms selected for their larger fruit. Other non-native forms like ‘Black Lace’ and ‘Lemony Lace’ are more refined alternatives for the landscape.

Elderberry

Spicebush–Lindera benzoin-We have had success growing this as an understory shrub. The tiny yellow flowers attract bees and the leaves have a spicy smell when crushed. Plants develop a nice yellow fall color.

Viburnums-There are too many of these shrubs to mention, but I will highlight our native to Kansas varieties, which have beautiful white flowers in the spring followed by clusters of purplish fruit that develops later in the summer. Viburnum prunifolium has smaller oval leaves that develop reddish-purple fall color. Viburnum rufidulum has shiny leaves that turn burgundy-purple fall color. Each of these shrubs can grow to 12 feet tall.

Blackhaw Viburnum-Viburnum prunifolium

Certainly, there are other shrubs for the landscape such as Beautyberry-Callicarpa americana, sumac (Rhus sp.), Roughleaf Dogwood-Cornus drummondii, American plum-Prunus virginiana, Clover Currant-Ribes odoratum, and serviceberry (Amelanchier sp.) that deserve more use in landscapes. Many of these shrubs have been pushed aside for ornamental varieties that are nice to look at, but offer nothing to wildlife because the flowers are sterile. By strategically choosing plants that are both beautiful and alluring to bees and other wildlife, your garden will become a haven for pollinators.

Shrubs for Bees Photo Credit

Trees for the Bees

Posted on June 29, 2016 by Scott Vogt

Are native wildflowers the only plants that bees love? I knew the answer to this question is no, but needed a reminder. The other day as I was giving a tour at the arboretum. We had stopped next to a Littleleaf Linden tree (Tilia cordata). It was extremely fragrant. It was also covered by pollinators including many different types of bees. The hum as they busily worked over the flowers was amazing. It made me think – Are there other trees that pollinators use throughout the year?

Littleleaf Linden

The plight of bees and other pollinators have been in the news lately. Beekeepers struggle with colony collapse. Pollinator populations continue to decline. Habitat loss and dwindling sources of pesticide-free plants make it harder for insects to find the food they need for their very survival. Wildflowers are promoted as the elixir for these endangered pollinators, but in reality a diverse network of food has never been more important. Trees are a vital food source for all sorts of insects. The abundance of flowers at a single location provide bees and other pollinators with valuable sources of nectar. Trees can be part of the solution to these problems. Here is a list of trees that pollinators will flock to when in bloom. Besides helping the pollinators they may give you some shade.

Black Cherry-Prunus serotina

This native tree can be found in the eastern half of the United States. Black Cherry is not a specimen tree, but offers fragrant, nectar-rich flowers followed by tangy fruit that wildlife enjoy. Plant along the outskirts of your property so it has adequate space, ultimately reaching 50-75 feet tall. Other cherry trees and fruit trees offer pollinators nectar early in the year. We certainly benefit from their work.

Black Cherry

Basswood-Tilia americana

This deciduous tree is a bee magnet. The clusters of fragrant yellow flowers in June and July attracts pollinators from all over the neighborhood. The foliage is heart shaped, which provides dense shade. It has an upright habit that develops into a broad spreading tree over time to 75 feet. The smaller (to 40-50 feet) non-native cousin Littleleaf Linden is just as alluring to pollinators. The variety ‘Redmond’ is one of the most common available at your local garden center.

Willows-Salix sp.

This is often overlooked as a group of trees, but it is extremely important to a wide variety of pollinators. Consider planting a pussy willow or weeping willow in your garden, especially if you have a wet spot. I grew up fishing around and under Black Willow trees along the East Emma Creek. I can still remember being scolded and even dive bombed by a Red-winged Blackbird that was protecting its nest in one of these Black Willow trees. They are not very ornamental, but valuable to a host of wildlife along with many different pollinators.

Pussy Willow

Catalpa-Catalpa speciosa

This is a tree that deserves wider use because it is very adaptable and tough. The showy, white flowers in June are sought by bees. These flower clusters develop dangling cigar-like seed pods. The heart-shaped leaves are attractive along with the irregular branching of the tree. It as many unique features that may be worth a try in your garden.

Catalpa

Black Locust-Robinia pseudoacacia

This native tree makes fantastic honey. The creamy white, fragrant flowers dangle from the branches in long 4-8 inch racemes. Bees flock to the flowers that are rich in nectar and pollen. The black locust tree is quite adaptable but needs full sun for best growth. Most trees reach 30-60 feet tall at maturity. Look for varieites called ‘Frisia’ or ‘Purple Robe’ to establish in your garden.

Black Locust

Diversity is the key to pollinator success. The pollinators needs a variety of plants that bloom a different times all through the year. Blooming trees literally take pollination to a new level. Your bee-friendly habitat needs some blooming trees.

Trees for the Bees Photo Credits

The Prairie Paradox

Posted on June 1, 2016 by Scott Vogt

“Reversing deforestation is complicated; planting a tree is simple.”

– Martin O’ Malley, Former Governor of Maryland and Mayor of Baltimore.

When I first read this saying, I automatically changed it in my mind. I changed it to “reversing prairie degradation and loss is complicated; planting a wildflower is simple“. Granted, we appreciate trees in Kansas. But more than trees, we need to plant prairie to reverse the losses to our signature landscape. Only one percent of the original prairie remains—99 percent of prairies are gone. The rich prairie land is now used to produce crops and raise livestock. Only a few pockets of prairie still survive in their original form, including the Flint Hills.

I grew up on a farm and learned so much from farm life. I know the value of the land. I understand how hard it is to eke out a living working the land. There is a richness of the soil precisely because it was once prairie. Conservation of the soil is vital to the success of any farm. Stewardship of the land is understood. We can’t take the land away from the farmers and landowners, but we also can’t let the prairie disappear forever either. We need the food that this land produces and we need to save this almost extinct ecosystem. It is complicated on so many levels.

Big Bluestem growing in the Prairie Window Project

I believe the solution to the prairie paradox is to allow for and encourage individuals to make small steps, such as choosing to plant native wildflowers and grasses in our own yards and landscapes. Just like remnant prairies that dot the landscape, our small gardens can have an impact. This impact can be multiplied with each new wildflower and each new garden that is established. By choosing to establish just a few native plants, we can begin the slow process of reclamation, rejuvenation and renewal of this lost landscape. Large expanses of prairie are never coming back, but a patchwork landscape of our own native plants seems doable.

Larger prairie restorations are a challenge. They can take years to get established and even then the results will almost always fall short of the original prairie. I can remember looking at a prairie restoration in Wisconsin that had been seeded over 20 years earlier. The guide noted that the prairie had just started looking like the original prairie. It took that long to develop into something that resembled a true prairie. I am not saying that we shouldn’t plant new prairie. If anything, we should start now so the transformation can begin. A “new prairie” does not develop overnight. It takes time and is complicated by so many different factors. We should have realistic expectations and be patient.

Burning the Prairie Window Project-Spring 2016

Even our Prairie Window Project is continuing to mature. It is now nearly 10 years old. We have worked hard to keep the trees and yellow sweet clover out of the prairie. We planted the prairie with good diversity of wildflowers and grasses but even that is no guarantee of success. The impact of farming on the land, weed competition with new native seedlings, management regiments and many other influences can have detrimental effects on a prairie reconstruction slowing the transformation. These examples demonstrate how complicated it can be to change a farm field to a prairie. It is costly, time consuming and unpredictable.

Earth Partnership for Schools Native Planting

We should keep planting native plants because it is the right thing to do. Plant a prairie if you can. Reclaim a prairie if you can. The prairie ecosystem, unique to North America, is an important part of our natural heritage. Native pollinators need these plants for their survival. Native wildflowers and grasses create habitat for wildlife. We should be aware of the many benefits of native plants. Obviously, native plants are worth the effort. Remember, planting a wildflower is simple –why not start today?

This is a landscape worth saving!