Selecting and Sowing Native Seeds

Fascinating Nature

This has been the best winter yet! I have so much to look forward to and plan for now that my husband and I own a little property. Whenever I walk outside I imagine how we can make this place a productive biological haven. It’s good to brainstorm, and I do often. It’s good to think, imagine, and dream because by doing that you are looking forward for what could be possible. You become aware of so much by gleaning ideas from books, podcasts, conversing with a friend, and then brainstorming with that knowledge. The more you learn and become aware, the more possibilities you are aware of and the more you can enjoy life.

Before the snow fell this past week, I planted all of my native seed that requires cold-moist stratification for optimum germination. It’s amazing just how many native perennial species require seed cold-moist stratification! It’s something I never knew about until a year ago. The freeze-thaw cycle throughout late winter and early spring will work each seed into the ground at the proper depth based on each seed’s size. It also stimulates germination for the proper time to start growing.

snow-seeding natives for cold-moist stratification
I sowed my competitive “weed seed” patch after the snow and waited for calm air so that the wind-dispersal seeds wouldn’t drift away.

I’m a little nervous that the time I spent researching and carefully selecting every type of native seed for my garden will be in vain. It’s just so weird planting in the snow! But it is such a fun and hopeful thing to do in the winter. Even though everything is dormant outside, I imagine the array of color that will bloom from each seed I plant.

snow planting of natives
Most seeds I planted before the snow fell. None of the seeds I planted pre-snow had wind-dispersal filaments because they would’ve blown away as the snow came down with wind.

When selecting native seeds for my garden I studied books, online articles, prairies, and discussed with local native-meadow owners over the course of about a year or so. The most important factor to me is having enough native species in bloom (whether that be tree, bush, perennial or annual) for beneficial pollinators in every active season. The general minimum recommendation for the amount of flower species to be in bloom is three species per season: early spring, spring, summer, fall, late fall.

I ordered several tree seedlings from the Missouri Department of Conservation that will be arriving anytime now. Once mature, some trees and shrubs produce a very high density of pollen and nectar, especially native willows (important as early nectar/pollen source), maples (not silver maple as they are wind-pollinated), basswood, red buckeye (especially for hummingbirds), catalpa (catalpa moth caterpillars are outstanding for fishing), sumac, sweetspire, New Jersey Tea, elderberry, false indigo bush, and many more. We often take trees and shrubs for granted when it comes to flower production.

Just as important as nectar and pollen sources, think about host plants for the beneficial insect species you want to attract. Insects are at the bottom of the food chain and, especially moths and butterflies, rely on only a handful of plants that provide the “just right” chemical compounds to feed the growing caterpillars. Some insects I’d like to see a lot of here are tortoise shell beetles which prefer potato and morning glory vines; clearwing hummingbird moths which lay their eggs on trumpet vines, coral honeysuckle vines, and coralberry bush; monarch butterflies which lay their eggs solely on milkweeds; and yucca moths which have a strict interdependent relationship with yuccas. Therefore, I will sow new seeds, plant a few trees, and maintain for the bees what I already have accordingly. Ha, I like how that sounds.

eastern tiger swallowtail caterpillar on tulip poplar
Tiger swallowtails lay their eggs on tulip poplars, wafer ash, black cherry, and cottonwood trees for the growing caterpillars to feed on.
snowberry clearwing
Clearwing moths are one of my favorite insects. The host plants of their caterpillars are native vines like coral honeysuckle, trumpet vine and coralberry brush.

I also look for what plant species will do well in my sandy, well-draining soil. Another factor for selecting what to plant is to consider what grows locally (you can also collect seed locally on roadsides). As much as I want to attract zebra swallowtails by planting paw paw trees for them to lay their eggs on, it may be difficult because paw paw trees are more of a lowland/ravine type of tree that likes acidic soil with organic matter. Even though paw paws may not do well in my soil, I’m going to try anyway.

zebra swallowtail eggs on pawpaw leaf
three zebra swallowtail eggs on this pawpaw leaf

Think about what could potentially be the most competitive species and do not mix them with your most treasured, delicate species. Examples of competitive perennial species are milkweeds, bee-balm, black-eyed susans, rattlesnake master, ironweed, blue mistflower, anise hyssop, etc. I planted a “weedy patch” of common ironweed, green milkweed, common milkweed, boneset, and bee-balm that Nathan won’t have to mow much in the summer.

Are there any plants you want that are somewhat parasitic on other plants? I sowed indian paintbrush among my grouping of penstemon because indian paintbrush is hemiparasitic and grows better when there is a host plant root system, and they tend to like penstemon.

Indian paintbrush in Missouri glade
Indian paintbrush, often found on glades and prairies, is hemiparasitic and takes benefit from other plants’ roots

Grasses are important to incorporate into your native planting if you are able to give your native garden the benefit of an occasional controlled burn. I am fond of little bluestem, splitbeard bluestem (my ultimate favorite), indiangrass, prairie dropseed, and oak sedge. Grasses are an integral fuel source for a controlled burn. A lot of native perennials thrive the year following a thoughtfully-timed controlled burn.

Sedges and groundcovers, though they don’t produce impressive blooms, are good to act as “green mulch” to hold moisture at the surface of the soil and also to shade new native perennial and annual seedlings in their vulnerable new-growth stage.

indian grass
The brown and teal hues of indiangrass is beautiful in the fall
Splitbeard bluesten
Splitbeard bluestem is beautiful in the fall when the sun hits the inflorescence
prescribed burn in rural area of MO prairies
Prairies and many other ecosystems benefit from properly-timed fires
wild natives of Missouri's Prairie State Park
Butterfly milkweed bee balm, and gray-headed coneflower (I think) at Prairie State Park, Missouri in July

I hope some of these tips have inspired you to plant some natives in your own back-yard!

The best resources that I use often are:

Xerces Society

Alan Branhagen’s books: Native Plants of the Midwest, and Midwest Native Plant Primer.

Missouri Prairie Foundation’s free online lectures on Youtube:

Grow Native is an excellent over-all resource

Doug Tallamy’s book Bringing Nature Home (lots of great info and photos on beneficial insects and their native host plants)

Mike Connor from Honey Tree Nursery in Michigan- awesome lecture on Youtube

Roadside Native Plants Attract Brilliant Insect Diversity

Fascinating Nature
purple milkweed in roadside ditch
Purple milkweed in a farm roadside ditch

A few weeks ago a ditch along the road to our house was brush-hogged, causing a stand of purple milkweed to spring up. I was excited enough just to see the blooms! But every evening for the past week or so, Nathan and I have walked to go see what kind of action is happening at the blooms. I am so amazed at how many beautiful and unique insects are all brought together just by ONE PLANT! These unique and beautifully designed insects just make me so amazed at our Creator!

There are many things about God that I don’t understand, but my faith is especially strengthened when I see harmony and design found in God’s creation with specialist and interdependent species that are rely specifically on the other for the continuation of their life cycle.

monarch caterpillars on purple milkweed
Monarch caterpillars fatten quickly on their milkweed diet.

Monarch butterflies somehow can identify the specific kind of plant that will nourish their offspring and provide the toxins needed for the caterpillars for their chemical defense. The toxins (cardiac glycosides) the caterpillar sequesters are carried into adulthood and gradually wear off in the adult butterfly. It is amazing that God made them with the ability to go through a complete metamorphosis- two totally different lifestyles- and then on top of that they have the ability to identify the specific plants they should lay their eggs on!

Many butterflies and moths rely on a single plant species to lay their eggs. Some local example are monarch= milkweed, zebra swallowtail= pawpaw trees, catalpa sphinx moth= catalpa trees, rattlesnake master borer= rattlesnake master, gulf fritillary butterfly= passion flowers, yucca moth= yuccas. Many plants rely on a select few birds or insects to pollinate it.

Yuccas are pollinated exclusively by yucca moths as they lay their eggs in the yucca flower (they are mutually obligate), bottle gentian are pollinated primarily by bumblebees that are strong enough to open the blooms, ghost orchids are known only to be pollinated by giant sphinx moths that have long enough proboscises to reach the pollen packets, prairie-fringed orchids are known only to be pollinated by nocturnal hawkmoths, red monkey flowers are pollinated by hummingbirds’ foreheads as they come for nectar, and purple monkey flowers are mainly pollinated by yellow-faced bumblebees.

Odontocorynus umbellae on purple milkweed
Milkweed weevils (Odontocorynus umbellae) busily getting nectar from this purple milkweed bloom.

These weevils were so funny because when they saw me close by, many of them would purposely fall off of the bloom. Even if they fell onto an underlying milkweed leaf, they would crawl to the edge and fall all the way to the ground. They are capable of flying, but the quickest way for them to avoid predation I guess is to fall to the ground!

cobalt blue milkweed beetle
cobalt blue milkweed beetle (I think)
dogbane leaf beetle on purple milkweed
Dogbane leaf beetle (Chrysochus auratus) on dogbane

These beetles were only seen on one afternoon. Their metallic color is just outstanding!

dogbane leaf beetle on purple milkweed
Mating pair of dogbane leaf beetles on dogbane
Cool video to learn more about this beetle!
red milkweed beetle
Red milkweed beetle (Tetraopes tetrophthalmu)

Red milkweed beetles are quite a charismatic member of the longhorn beetle family. They tend to move around the milkweed plant to get out of sight. Their larva feed on milkweed roots and overwinter underground before emerging and pupating and eventually becoming adults in the spring. Like monarch caterpillars, these beetles have warning colors (aposematic coloration) to ward off predators.

red milkweed beetle in June
sulphur butterfly on purple milkweed
sulphur butterfly
Large milkweed bug on dogbane
Large milkweed beetle

This one native plant species brings in so much interesting life! This is part of why I love visiting native habitats and searching for critters that can be found there. It’s just another reason why I think it is so much better to artfully landscape with select native plants and try to provide for the requirements of the wildlife you’d like to see. Better to have a lively landscape than a stagnant, primarily non-native landscape that that is useless to the life cycle of many beneficial insects and wildlife. I can’t wait to collect the seeds in the fall and plant them on our property!

To learn more about managing for insects, I highly recommend reading Attracting Native Pollinators: The Xerces Society Guide to Conserving North American Bees and Butterflies and Their Habitat.

The Missouri Prairie Foundation has a great Youtube channel called “Missouri Prairie” where you can learn a lot about managing your property, large or small, for wildlife.

Orchid pollination and specialization: https://www.researchgate.net/publication/232046862_Trends_in_the_pollination_ecology_of_the_Orchidaceae_Evolution_and_systematics

Pollination syndromes and floral specialization: https://www.researchgate.net/publication/228687327_Pollination_Syndromes_and_Floral_Specialization

Pollination and Mutualism in Yuccas and Yucca Moths: https://www.jstor.org/stable/2463408?seq=1#metadata_info_tab_contents