Missouri Nature Guide: April 2026
April is the peak of Missouri's spring — the month the dogwoods and redbuds light up the Ozark woods, warblers pour through on migration, and the woodland wildflowers reach their fullest. It is arguably the single most beautiful and birdiest month of the entire Missouri year.
What to look for this week
- Bald eagles gather below the Mississippi River dams at Clarksville and the Old Chain of Rocks, fishing the open water as northern lakes freeze.
- Order seeds early before popular tomato and pepper varieties sell out, and prune dormant fruit trees on mild days.
- The Quadrantid meteor shower peaks around January 3 in a short, sharp burst; look toward the northeast after midnight from a dark Ozark sky.
- The bare bottomland sycamores glow with their white, peeling upper bark against the gray winter woods.
Birds This Month
April is one of the two best birding months in Missouri, as spring migration shifts into high gear. The neotropical migrants begin to arrive in waves — the first ruby-throated hummingbirds reach feeders mid-month, barn swallows and chimney swifts return overhead, and the woods fill with warblers: yellow-rumped, yellow-throated, northern parula, black-and-white, and the dazzling prothonotary warbler setting up in the wooded swamps of the Bootheel and along river sloughs.
The dawn chorus swells as resident and returning birds sing on territory. Eastern bluebirds are on eggs, brown thrashers, gray catbirds, and house wrens arrive, and wood thrushes begin their flute-like songs in the Ozark forests. In the Bootheel swamps and at Mingo NWR, listen for the loud, ringing song of the prothonotary and watch for wood ducks on the bottomland water. The greater prairie-chickens still boom on the western prairies early in the month.
This is also when Missouri's nightjars return — the eastern whip-poor-will begins calling its name from dusk to dawn in the Ozark woodlands, and the chuck-will's-widow arrives in the south. Shorebirds pass through flooded fields and mudflats, and scarlet tanagers and indigo buntings arrive toward month's end to blaze in the greening canopy.
This month's tip: get out early on a warm morning after a south wind and a passing front — these conditions drop the biggest waves of migrant warblers. River bottoms and the wooded edges of wetlands like Eagle Bluffs and Mingo are migration magnets.
What's Blooming
April is the absolute peak of Missouri's wildflower year. The spring ephemerals reach their fullest in the rich bottomland and Ozark woods before the canopy closes — the breathtaking blue carpets of Virginia bluebells along the river bottoms, the white nodding bells of bellwort, and great drifts of large-flowered trillium, wild blue phlox, celandine poppy, and Jacob's ladder.
The woodland floor is at its richest now — mayapple unfurls its umbrellas, jack-in-the-pulpit rises in the damp hollows, wild ginger hides its maroon flowers at ground level, and Dutchman's breeches, trout lily, and bloodroot finish the season they began in March. On the Ozark glades, the show moves to open ground: Indian paintbrush, shooting star, and the first glade-edge flowers appear on the warm dolomite.
Where to see it: the bluebell bottoms along the Missouri and Mississippi are world-class — Shaw Nature Reserve, the Katy Trail bluffs, and rich Ozark hollows like Ha Ha Tonka and Hawn State Park are all superb. Go mid-to-late April for the fullest display, and walk early when the light is soft and the trilliums and bluebells are at their most luminous. The bloom progresses northward through the month.
Garden This Month
April is the great transition in the Missouri garden, from the cool-season crops to the warm. Early in the month, keep sowing and planting the cool-lovers — peas, lettuce, spinach, carrots, beets, and brassica transplants — and get potatoes and onions in if you have not. Then the year pivots on the average last frost, which falls in early April in the Bootheel, mid-to-late April across central Missouri, and into early May in the north.
Once your local frost date passes and the soil has genuinely warmed, harden off and set out the tomatoes, peppers, eggplant, and basil you have been growing under lights, and begin direct-sowing the warm-season seeds — beans, squash, cucumbers, and sweet corn. Resist the temptation to rush these into cold soil, where they sulk and rot; a week or two of patience pays off in healthier plants. Keep row cover ready, because Missouri springs are notorious for one last cold snap. This is also the prime month to plant perennials, native wildflowers, and pollinator plantings while spring rains keep the soil moist.
Zone 5b (northern Missouri): the cool-season garden goes in fully this month — sow peas, lettuce, spinach, carrots, and beets, set out brassica transplants, onions, and potatoes. The average last frost is late April into early May here, so hold tomatoes, peppers, and other tender crops until the very end of the month at the earliest, with frost cloth ready.
Zone 6a (central Missouri): a transition month from cool-season to warm. Keep planting greens and roots early, then around the mid-to-late-April average last frost, harden off and set out tomatoes, peppers, and basil, and direct-sow beans and squash once the soil warms. Watch the forecast — a late frost is still possible, so keep covers handy.
Zone 6b (southern Ozarks and St. Louis area): the warm-season garden begins. After the early-April average last frost, set out tomato, pepper, and eggplant transplants, and direct-sow beans, corn, squash, and cucumbers as the soil warms. Finish any remaining cool-season sowings early in the month before the heat builds.
What's at the Farmers Market
April is when Missouri markets finally turn green. The signature crop of the month is asparagus, which comes into full season now — look for firm, straight spears with tight, compact tips, and avoid any that are limp or have flowering, opened tips. Alongside it, the spring greens are abundant: spinach, arugula, leaf lettuces, spring mix, and the first radishes, green onions, and green garlic.
This is also the season for early-spring specialties — rhubarb with its tart red-and-green stalks, the first tender spinach and kale, and bedding plants and seedlings as growers begin selling vegetable starts and flowers. Local honey, maple syrup, eggs, and overwintered storage onions and potatoes round out the tables. Toward month's end, the very first strawberries may appear in the warmest parts of the state.
For selection and storage: keep asparagus crisp by standing the spears upright in a jar with an inch of water in the refrigerator, or wrapping the cut ends in a damp towel. Store tender greens dry in the crisper and use them within a few days. Trim radish and green-onion tops if storing more than a day or two, and keep rhubarb stalks refrigerated and unwashed until you use them.
Night Sky This Month
April is a transitional sky in Missouri. The winter giants — Orion and his entourage — set in the west soon after dark, while the spring constellations take command. Leo the Lion rides high in the south, Virgo with bright Spica climbs in the southeast, and the Big Dipper hangs nearly overhead. Follow the curve of the Dipper's handle to arc to brilliant orange Arcturus in Boötes, then speed on to blue-white Spica.
The Lyrid meteor shower peaks around April 22, an old, reliable shower that can produce a couple dozen meteors an hour from a dark sky. The Lyrids radiate from near the bright star Vega, which rises in the northeast in the late evening, and as with all showers they are best after midnight from a dark, moonless site. With the winter Milky Way gone and the summer Milky Way not yet risen in the evening, April is a fine month for hunting galaxies — the Virgo Cluster and the galaxies of Leo are at their best now for telescope owners.
The dark Ozark skies of Mark Twain National Forest are Missouri's finest, far from the city glow. April weather can be unsettled, so wait for a clear night behind a cold front for the steadiest, most transparent air. Because the planets and the exact Lyrid peak shift each year, check the printable Missouri night-sky guide for this year's specific viewing nights and planet visibility from your latitude.
Butterflies & Pollinators
April brings Missouri's butterfly season fully to life. The big news is the return of the monarch — the spring generation funnels up from Mexico through the central flyway and reaches Missouri this month, the females laying eggs on emerging milkweed as they go. Seeing the first monarch of the year drift across a greening field is one of April's quiet pleasures.
The woodland and garden species multiply quickly now. The big black-and-yellow eastern tiger swallowtail sails through the dogwood and redbud bloom, black swallowtails patrol gardens, and the early woodland fliers — falcate orangetip, spring azure, juvenal's duskywing, and the lovely zebra swallowtail (whose caterpillars feed only on pawpaw) — work the blooming woods. Cabbage whites, pearl crescents, and eastern tailed-blues are common over fields and trail edges.
To support them now: the returning monarchs need milkweed, so make sure yours is up and protected, and the early swallowtails need nectar — the redbud, dogwood, and spring phlox are crucial early sources. A patch of native pawpaw in your woods or garden supports the striking zebra swallowtail, found almost nowhere else.
Trees This Month
April is the showpiece month of the Missouri tree year. The two great spring bloomers take over the woods in succession — first the eastern redbud lights up the Ozark understory and roadsides with clouds of magenta-pink flowers blooming directly on its branches and trunk, then the state tree, the flowering dogwood, opens its broad white bracts in waves across the hardwood forest. The combination of redbud purple and dogwood white through the greening woods is the defining image of a Missouri spring.
Around them the whole forest leafs out. The serviceberry and wild plum add early white bloom, the pawpaw hangs its odd maroon bell flowers in the bottomland woods, and the oaks, hickories, and maples unfurl their new soft-green leaves and drape the woods with pollen-bearing catkins. The native shortleaf pine pushes its candles of new growth on the Ozark ridges. By late April the canopy has closed enough to shade the woodland floor, ending the ephemeral wildflower season beneath it.
Go deeper with the Missouri guides
The complete Missouri birding, native-plant, wildflower, and night-sky guides — or the whole year in one bundle.
Same month elsewhere: April in Montana · April in Nebraska · April in Nevada