native-plants | The Prairie Ecologist

This might be an awkward week to laud the value of having a non-native wildflower in my yard. I’m an invited speaker at the Indiana Native Plant Society’s annual conference this coming weekend. It’s probably (?) too late for them to cancel my appearance.

I’m mostly kidding. Today’s post is not intended to diminish the importance of native plants, either in ecological restoration or in suburban landscapes. I’m (obviously, I hope) a huge advocate for including native plants in those situations for many reasons. I’ve written about that before (here) and don’t need to cover that ground again here. However, in that same post, I also explained why Kim and I have a mix of native and non-native (and even some cultivars of native plants) in our yard. If that makes you feel agitated, I beg you to read both that post and this one before you start stomping your feet and plotting my destruction.

Monarch butterfly on a zinnia flower this week.

We moved across town last winter, abandoning garden spaces Kim and I (mostly Kim) had invested 10 years in. Our new place is mostly Kentucky bluegrass with some minimal and mostly not-our-style flower gardens along the edge of the house. While we’re both antsy to start making it ours, Kim very rationally decided that we need to wait a year before jumping into a new landscape plan. That’ll give us (her) time to scope out the sunny and shady spots, learn about what’s already here, and think about what we really want this new yard to look like.

As a result, we (she) planted a small vegetable garden in the same footprint used by the previous owner, but otherwise – with one exception – left the rest of the yard as is. That exception was that she planted a bunch of zinnias around our back deck and in a stretch of space on the west side of the house. I’m grateful for a couple reasons. First, zinnias are beautiful and I like looking at them. Second, and (finally) getting to the point of this post, they attract and feed a lot of insects, including lots of migrants. In particular, this week, they fed a couple butterflies that weren’t really supposed to be here, but showed up anyway.

Our dog, Fitz, posing with some of our zinnias.

We’ve been enjoying a bounty of pollinators and other insects on our zinnias all season. During the last few weeks, though, the activity has been even more appreciated because most of the native plants in nearby prairies and other natural areas have pretty much shut down for the season. There’s very little available pollen and nectar out there right now. In our yard, though, the zinnias are still cruising along.

While most monarchs have scooted south, the few that are still hanging around and/or passing through have really concentrated their activity on our zinnias. They’re joined by migratory painted lady and American lady butterflies, as well as other butterflies, moths, bees, flies, etc. – some migratory, some not.

Last weekend, I spotted a butterfly on our zinnias that I’d seen in books, but never in real life – a gulf fritillary. I took a couple quick photos with my phone and checked the terrific Nebraska Lepidoptera website to see what I could learn.

According to the website, the species hadn’t yet been reported in our county and it was also outside the seasonal window when it had been reported in the state. That’s pretty cool. I emailed Neil Dankert, who runs the site, to let him know what I’d seen. Apparently, a few other people in the state were reporting the butterflies in their yards, too, along with a few other species that are normally found to our south. We’d had some strong southerly winds (blowing out of the south) a day or two before I saw the gulf fritillary, so maybe a bunch of butterflies just got blown north by that weather system.

The next morning, I took my camera out behind the house and took the photos shown in this post. I saw at least two different gulf fritillaries, which I know only because one of them had a wing that was a little beat up. Well, I also saw two at once, which was another good clue, I guess. There could easily have been more than two, though – there was so much activity on the flowers, it was hard to keep track. Here are photos of some of the other insect visitors on the zinnias that morning.

I’m excited to start putting in a bunch of native plants next spring, and building those gardens out over the next several years. We’ll be sure to include wildflowers that bloom at different times of year so that we can provide nectaring options consistently through the growing season for both resident and migratory pollinators. It’ll also be fun to watch myriad insects feed on the leaves, burrow into the stems, and otherwise utilize the plant species they are familiar with and adapted to.

At the same time, though, I’m sure we’ll add species like crocus, daffodil, tulip, hyacinth, and others, just because we think they’re pretty. Zinnias, too, will continue to be a staple of our backyard color. We’ll plant a cherry tree for pies and maybe some raspberries and strawberries for eating and canning. In addition, we’ll leave one fairly big swath of mowed bluegrass so we can play frisbee with the dogs and so there’s a place for kids to play soccer or whatever they want. In short, we’ll create a yard that fits us.

Gulf fritillary and monarch butterfly sharing the same flower (momentarily).

I fully support people who want to turn their whole yard into native prairie plantings, or to landscape with only native plants. If that makes them happy, it makes me happy. I’m a little bothered, though, by the more militant among them who try to shame anyone who doesn’t want to go whole hog with them.

There are lots of ways to contribute to the world with your yard. You can be conservative in your water use, for example, both by planting species that require minimal watering and by not watering more than needed. Leaving piles of sticks and leaves around, as well as patches of bare ground, provide helpful habitat for many species. You can also be judicious about spraying chemicals for weed or “pest” control. The overuse of herbicides and pesticides is a huge problem and has big ripple effects outside of someone’s yard.

And, of course, incorporating native plants in your landscaping has innumerable benefits, both directly to insects and other wildlife and indirectly as a way of normalizing those plant species to neighbors and passers-by. Please add native species to your yard if you can!

However, don’t feel bad about throwing in a few daffodils, petunias, or zinnias as well. I sure don’t, and neither – apparently – do the butterflies.

The fall migration is in full swing through our prairies. Dragonflies, birds, butterflies, and more are moving southward. Going out on dewy mornings is a great way to check up on butterflies and dragonflies because I can find them immobile and covered in dew on their overnight roosts. This week was a big week for variegated meadowhawks (dragonflies), apparently. I found dozens of them at our family prairie one morning (more photos toward the end of this post).

Variegated meadowhawk at sunrise. Helzer family prairie.

There are lots of little brown birds skulking in the vegetation this week. Many of them are grassland sparrows of various species, but there also were a bunch of sedge wrens at our family prairie. Most of those birds are hard to see unless you flush them while walking through the prairie, but just standing still is also a good way to hear them as they rustle around in patches of tall grass. The sedge wrens made it easy because they not only rustled, they also called to each other with their machine gun songs (“Dot Dot d-d-d-d-d-d-d-d-d-d!”).

One of many sedge wrens hiding in the grass this week.

Monarchs are far from the only migratory butterfly (not to mention moths) coming through. I’ve seen a lot of painted lady butterflies this week and found a few orange sulphurs that (probably?) were on the move. There was a cluster of pearl crescent butterflies in our yard this week, too, but as far as I know, those aren’t migratory. They looked like they’d all recently emerged as adults, so they’d better hurry if they’re going to lay eggs before freezing temperatures hit!

As I see the abundance of flies still active at this time of year, I can’t help wondering how many of them are migrants. A year ago, I wrote a post complaining about the lack of North American research on migratory flies. I’m sure that spurred a flurry of activity among researchers (eye roll) and that we’ll soon know a lot more about the topic. In the meantime, I’m left to wonder, especially about all the different drone flies and hover flies I see. Are they just scrambling to eat (and lay eggs?) before frost? Or are they fueling up during a long southward journey?

A gorgeous dew-covered fly. Is it a migrant or resident? I don’t have any idea. Lincoln Creek Prairie.

Most insects, of course, don’t migrate, so they have to survive Nebraska winters however they can. That usually involves finding a sheltered place to hide and then just withstanding freezing conditions. Species vary in terms of whether they go through winter as adults, eggs, or larvae/nymphs. All of those options seem to work ok.

This katydid thought it was hiding from me on an early morning this week. I’m not sure whether this species lives through the winter as adults or eggs.

Male American bumblebee (*Bombus pensylvanicu*s) roosting on the underside of a tall thistle leaf.

A lot of the individual insects out and around now will simply die as winter hits. The only bumblebees, for example, that survive the winter are the fertilized females that will be next year’s queens. Everyone else in the colony will perish at the end of this season. Other insects that lay eggs before winter will also die after completing that task. I imagine that abundance of dead insects provides a big bonanza of food for any animals out poking around after the first big freeze or two. If not, bacteria, fungi, and other microorganisms will clean up the rest.

This caterpillar was literally hanging around on some big bluestem (remarkably camouflaged!) this week. I imagine it’ll spend much of the winter frozen solid, either as a caterpillar or pupa.

Plants are also shutting down for the year. Most wildflowers and grasses are finished blooming and have produced seeds if they can. Perennial prairie plants are also making buds. Woody plants make buds aboveground where new leaves or stems will emerge next year so the plants can continue to grow larger (assuming they don’t get burned, chewed, or cut down). Herbaceous plants, though, including grasses, wildflowers, and sedges, create buds at their bases, usually right below the surface of the soil.

Over the winter, the entire aboveground portion of perennial herbaceous plants dies back. In the spring, though, those plants will start a new season of growth from their basal buds. Seeds are still important for those perennials, though, both because it allows them to combine DNA with others of their species (cross-pollination) and because it lets them spread progeny into new places. Seed dispersal strategies are fascinating and beautiful, and it’s a fun time of year to see a lot of them in action.

Indiangrass seeds dangling from a seed head, ready to be carried off by a breeze or passing animal.

This milkweed seeds are poised to fly off in the wind once the sun dries the dew drops from them.

Late summer and early fall are great times for dewy mornings. Those water droplets are a boon for insect photographers, but they also make nice photo subjects on their own.

Dew drop hanging from a leaf after sunrise.

Back to the abundance of variegated meadowhawks this week… I can’t remember seeing so many at a time before, but that doesn’t mean much. I tried to quickly photograph a selection of those I found at our family prairie one morning, but I just kept finding more and more. Here are the ones I managed to photograph:

There was one dragonfly in particular that was perched attractively on top of some stiff goldenrod as the sun came up. I circled back to it a couple times as it started warming up and managed to photograph it from multiple angles while it was still too cold and wet to fly away. All the rest of the photos below are of that same individual.

I don’t know how much longer this late season flurry of activity will last, so I’m trying to catch as much of it as I can. I’ve gotten behind on some projects because I’m trying to see things before they’re gone, but I’ll have the whole winter to catch up, right?

The Prairie Ecologist

Essays, photos, and discussion about prairie ecology, restoration, and management

Tag Archives: native-plants

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