Milkweed is the headline. But if it's the whole story in your garden, you're missing most of the plot, and so are the pollinators you're trying to help.

Every spring I get some version of the same question: "I want to help the monarchs. How much milkweed should I plant?" And I love that question. I really do. The fact that a person in a Des Moines subdivision or on a 160-acre farm near Oskaloosa is even asking it tells me we're moving in the right direction.

But here's the thing I've come to believe after hundreds of conversations with landowners, ecologists, and the folks we've had on The Prairie Farm Podcast: milkweed alone isn't going to save the monarch. And it definitely isn't going to save "the butterflies." Milkweed is a starting point. A gateway. What actually rebuilds butterfly and bee populations is diversity. Continuous bloom. Host plants. Habitat that does something from April through October, not just during the three weeks your butterfly weed is orange.

Let me explain what I mean, and why it matters for anyone buying pollinator seed this year.

The Milkweed Story Is Real — But It's Only Part of the Story

Let's give milkweed its due. Monarch caterpillars eat nothing else. Full stop. The U.S. Fish & Wildlife Service proposed listing the monarch as threatened under the Endangered Species Act in December 2024, and a huge reason for the decline is that milkweed got wiped off the agricultural landscape with the adoption of Roundup Ready crops. That's not controversial, it's just what happened.

When we had Wendy Caldwell, Executive Director of the Monarch Joint Venture, on the podcast, she made a point I keep coming back to. She said something that a lot of folks don't realize: before herbicide-tolerant corn and beans, farmers were actually kind of accidentally helping monarchs. Tillage disturbed soil, milkweed loves disturbed soil, and common milkweed came back like gangbusters in crop fields. Then the chemistry changed, and milkweed in row crops basically disappeared.

So yes, plant milkweed. Please. The Monarch Joint Venture has set a goal of adding roughly 1.5 billion additional milkweed stems across the eastern monarch range to help stabilize the population. That's a lot of stems, and every patch in every backyard counts.

But here's where people get stuck. They plant three butterfly milkweed plugs from the garden center, maybe a clump of swamp milkweed if they've got a wet corner, and they call it a pollinator garden. That's not a pollinator garden. That's a monarch snack bar that's open for about four weeks a year.

Monarchs Are a Prairie Butterfly (And Prairies Aren't Monocultures)

One of my favorite conversations on the podcast was with Justin Meissen from the Tallgrass Prairie Center at the University of Northern Iowa. Justin's a research ecologist, and I asked him, "If somebody had 50 acres going into CRP and wanted monarchs, what five species should they plant?" His answer kind of threw me.

He said: "I would tell them a diverse tallgrass prairie mix is what you want." Not five species. A diverse mix.

His reasoning was fascinating. He pointed to a study by Andrew Kaul that actually quantified milkweed density across different Iowa habitats. Prairie remnants, the untouched, never-plowed stuff, had almost 10,000 milkweed stems per hectare. Our best prairie reconstructions had around 4,000. Crop fields had basically zero. That gap between remnants and reconstructions is huge, and it tells you something: monarchs evolved as part of a tallgrass prairie community, not as guests in a butterfly-garden monoculture.

This is why Justin kept pushing back on the "top five monarch plants" framing. Monarchs need milkweed to reproduce, sure. But the adults need nectar. The caterpillars need shelter from predators. The whole system needs diversity so that when one species is done blooming, another one's just getting going.

The Thing Nobody Tells You About Butterflies: It's Not Just Monarchs

Here's a number that should stop you in your tracks. According to the Xerces Society, 19% of butterflies and moths in the U.S. are at risk of extinction. Not just monarchs. Nineteen percent of a whole order of insects.

And bees? It gets worse. At least 28% of North America's bumble bees have undergone significant declines, including species that used to be everywhere. A 2016 study in Germany (in protected natural areas) documented a 75% drop in flying insect biomass over 27 years. Three-quarters. Gone. In places nobody was farming or spraying.

Monarchs get the headlines because they're big and orange and they migrate across a continent. Wendy Caldwell put it well on the podcast — she called the monarch a "charismatic species" that gives conservation a place to start. But if you build a garden that only works for monarchs, you're ignoring roughly 3,600 species of native bees in the United States and Canada, most of which are not honeybees, and many of which are in serious trouble.

What Actually Rebuilds a Pollinator Population

Okay. So what do you do about it? Here's what the science and the folks we've talked to keep saying, over and over, in different words:

1. Plant for continuous bloom — April through October

A pollinator garden is only as good as its worst month. If you've got a riot of color in July but nothing in bloom in late April or mid-September, you have a gap. And pollinators, especially solitary bees with short adult lives, starve in gaps.

Aim for at least three species blooming at any given time, from early spring to hard frost. In the Upper Midwest, that means early bloomers like wild blue indigo and golden alexander, summer workhorses like purple coneflower and black-eyed Susan, and late-season specialists like New England aster, stiff goldenrod, and blazing star. Without the late stuff, your monarchs have nothing to fuel up on before Mexico.

2. Host plants, not just nectar plants

This is the piece almost every big-box-store pollinator mix gets wrong. Nectar is adult food. But almost every butterfly species on the continent needs a specific host plant for its caterpillars. Monarchs need milkweed. Black swallowtails need parsley-family plants like golden alexander. Fritillaries need violets. Painted ladies use thistles. Sulphurs use legumes.

And specialist bees which make up a huge chunk of our native bee fauna are even pickier. The Xerces Society documents hundreds of native bees that require pollen from very specific plant families to reproduce. Squash bees only pollinate cucurbits. Southeastern blueberry bees need heath-family plants. No host plant, no next generation. Period.

3. Grasses aren't decoration — they're architecture

This is one I had to learn the hard way. A lot of people want a "wildflower garden" with zero grass. That's not a prairie. That's a flower bed. Native grasses like little bluestem and side-oats grama do the structural work: they hold the soil, they give soft-stemmed wildflowers something to lean on in July thunderstorms, they provide winter cover for overwintering bee larvae, and they suppress weeds so your forbs don't get smothered.

A diverse mix with both grasses and forbs mimics how these plants actually grow together in nature. That's why Justin kept pushing the "diverse tallgrass mix" answer. Prairies aren't collections of flowers. They're systems.

4. Leave the leaves. Leave the stems. Stop being so tidy.

More than 90% of native bee species are solitary, and many of them nest in the ground or in hollow plant stems. If you chop your garden down to bare dirt in November, you've just thrown away a year of baby bees. The Xerces Society's guidance is clear: leave stems standing at least 8–15 inches through winter, and don't do your big cleanup until sustained temperatures are above 50°F which is usually mid-to-late May in Iowa.

I know that's hard for a lot of people. Your HOA might hate it. Your neighbor might think you've given up. Do it anyway. Or do it in the back half of your yard and keep a tidy border out front as a concession to suburbia. That's a topic for a different post.

The Practical Answer: What to Actually Plant

If I had to boil it down (and I've had this conversation on the phone maybe five hundred times in the last couple years) here's the core of a pollinator planting that actually works for more than just monarchs:

• Multiple milkweeds: Common milkweed (Asclepias syriaca) is the monarch workhorse. It's what they prefer in research, it spreads, and it's cheap. Butterfly milkweed (Asclepias tuberosa) for drier sites. Swamp milkweed (Asclepias incarnata) if you've got a wet spot. Justin made the point on the pod that swamp milkweed is a monarch favorite but it'll fade out fast on a dry site — don't waste money on it if your soil doesn't fit.
• Spring bloomers: Golden alexander, wild blue indigo, prairie phlox, shooting star. This is the window where specialist bees are waking up and nothing else is open yet.
• Summer bloomers: Purple coneflower, pale purple coneflower, black-eyed Susan, yellow coneflower, wild bergamot, rattlesnake master, ox-eye sunflower, prairie blazing star. This is peak season, and it's where most mixes do fine.
• Fall bloomers: New England aster, sky-blue aster, stiff goldenrod, showy goldenrod, Indian grass seed heads. These are the plants fueling the monarch migration and feeding bumble bee queens before they overwinter. Do not skip the goldenrods. Despite the reputation, they're not what makes you sneeze (that's ragweed).
• Structural grasses: Little bluestem, side-oats grama, prairie dropseed. Maybe some big bluestem or Indian grass if you have the room and want height.

That's roughly 20–30 species, give or take, and that's the level of diversity a functioning pollinator habitat actually needs. It is not five species, and it is definitely not just milkweed.

Where Hoksey Fits In

We put together our Native Bee and Butterfly Mix specifically for this reason — because a monoculture of butterfly weed isn't a pollinator garden, and because we got tired of seeing cheap pollinator blends at big-box stores that are half annuals, half non-native species, and zero host plants. Ours is built around Iowa-native species with continuous bloom from early spring through fall, host plants for multiple butterfly species, and pollen sources for specialist bees, not just honeybees.

If you want something bigger and grassier, a true prairie reconstruction rather than a flower-bed-scale planting, then our Short Backyard Prairie and Tall Backyard Prairie mixes are built on the same principle: diversity first, then everything else. If you've got acreage going into CRP and you want to do it right for pollinators, our IA Monarch Pollinator mix is built to CRP specs with monarch-specific species loading.

And if you're not sure where to start (genuinely, it's a lot) take our 10-question quiz and we'll send you a prairie plan with the right mix and a prep timeline for your site. It's free, and it's the closest thing to an on-site consultation we can give you through a web form.

The Bigger Point

Wendy said something on the podcast that's stuck with me. She was talking about why the monarch matters so much as a symbol, and she said it comes down to this: the monarch is charismatic enough that people will actually do something about it. They'll plant milkweed. They'll put up a sign. They'll pay attention.

That's the gift of the monarch. It's the gateway bug. It gets people in the door. But once you're in the door, the job is bigger than saving one orange butterfly. It's about rebuilding the whole community of the specialist bees, the hairstreaks and skippers nobody can name, the beetles, the wasps, the flies, the ground-nesting miner bees that emerge for ten days in April every year and then disappear. Most of these you'll never notice. All of them depend on the same thing: diverse, continuous, native-plant-dense habitat that has space for all of them to do their thing.

So plant milkweed. Absolutely. But don't stop there. The butterflies need more than milkweed. They need a prairie, even if your prairie is 200 square feet against the back fence.

Conservation happens one mind at a time. And one yard at a time. Let's get after it.

Sources & Further Reading

• U.S. Fish & Wildlife Service — Monarch Butterfly Proposed for ESA Protection (Dec 2024)
• Monarch Joint Venture — Endangered Species Act status
• Xerces Society — Who Are the Pollinators
• Xerces Society — What's At Stake (pollinator decline data)
• Xerces Society — Pollinator-Friendly Native Plant Lists (host plants & specialist bees)
• Kaul, A.D., and Wilsey, B.J. — research on milkweed density in Iowa remnants, reconstructions, and crop fields (referenced by Justin Meissen, Tallgrass Prairie Center, on The Prairie Farm Podcast).
• The Prairie Farm Podcast episodes featuring Wendy Caldwell (Monarch Joint Venture) and Justin Meissen (Tallgrass Prairie Center, UNI) — available at hokseynativeseeds.com/the-prairie-farm-podcast.