Arkansas Nature Guide: August 2026
August is the hot, hazy peak of late summer in Arkansas — the hummingbirds reach their greatest numbers, the late-summer prairie flowers bloom, and the Perseid meteors streak over the dark mountains. The early waves of fall migration are already underway even as the cicadas drone through the heat.
What to look for this week
- Vast flights of mallards, pintail, and snow geese pack the flooded rice fields and refuges around Stuttgart at the height of the Delta duck season.
- 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 of the Cache River.
- A planning and pruning month statewide; order seeds early and prune dormant fruit trees and muscadines on mild days.
Birds This Month
August in Arkansas marks the quiet beginning of fall migration even in the heat. Ruby-throated hummingbirds reach their peak numbers now, swarming feeders and flowers as the year's young join the adults and migrants from farther north pass through — keep feeders fresh, as this is the best hummingbird month of the year. The first songbird migrants slip south, and shorebirds build on the Delta mudflats and drained rice fields.
The summer residents grow quiet as they molt and prepare to leave. The scissor-tailed flycatchers of the Arkansas Valley begin gathering into pre-migration flocks on the wires, a lovely late-summer sight, and the purple martins stage in huge roosts before heading south. Chimney swifts swirl over the towns at dusk, and the common nighthawks begin their loose southbound flights on summer evenings, coursing over fields and towns.
The wetlands and rice fields fill with shorebirds and wading birds — least, pectoral, and solitary sandpipers, yellowlegs, and great and snowy egrets spread across the shallow water of the Delta. Early warblers and orchard orioles trickle through the wooded edges, the leading edge of the fall flood to come.
This month's tip: this is the peak hummingbird month — keep several feeders clean and full, and plant a few late nectar flowers. Watch the evening sky for migrating nighthawks, and check the Delta rice fields and mudflats for the building shorebird migration, which is in full swing by late August.
What's Blooming
August carries the Arkansas prairie and roadside bloom into its tall, late-summer phase, the flowers reaching above head height in the remnant prairies. The Grand Prairie near Stuttgart and the glades of the Arkansas Valley glow with prairie blazing star, rough blazing star, the towering yellow compass plant and maximilian sunflower, and the deep purple ironweed and pink Joe-Pye weed.
The roadsides and wet places are full. Goldenrod begins its long late-season show, the white-flowered boneset and mistflower open in damp ground, and along the streams the scarlet cardinal flower and blue great blue lobelia bloom for the hummingbirds. The native sunflowers — ashy and woodland sunflower — and the climbing passionflower (maypop) brighten the field edges.
Where to see it: the Grand Prairie remnants, the Arkansas Valley glades, and the cooler mountain meadows of Mount Magazine and Petit Jean are at their late-summer best. The blazing star and ironweed swarm with butterflies, and the cardinal flower lines shaded stream banks. Go early in the morning before the August heat builds, and watch the prairies for monarchs nectaring as the southbound migration begins.
Garden This Month
August is a turning point in the Arkansas garden, balancing the last of summer's harvest against the start of the fall planting. The summer crops keep bearing in the heat — pick okra, peppers, southern peas, eggplant, and the slowing tomatoes regularly — but the spring-set tomatoes are tiring, so this is when the fall tomatoes you set in July take over.
Arkansas's long, warm autumn makes the fall garden the real story of August. Early in the month, direct-sow a fall round of bush beans, summer squash, and cucumbers for harvest before frost, and set out transplants of broccoli, cabbage, cauliflower, and collards for the cool-season crop. Toward month's end, as the worst heat begins to ease, direct-sow carrots, beets, turnips, and the first fall greens. Keep everything well watered through the August heat — newly seeded fall beds dry out fast — and keep mulching, harvesting in the cool of the morning, and staying ahead of the late-summer pests.
Zone 7a (Ozark and Ouachita valleys, Little Rock area): high summer harvest continues even as the fall garden goes in. Keep picking okra, peppers, southern peas, and tomatoes, and this month plant the fall garden — set out broccoli and cabbage transplants and direct-sow beans, squash, and a fall crop of cucumbers early in the month.
Zone 7b (south Arkansas and the lower Delta): the long fall season is a real advantage here. While the heat-loving okra and southern peas roll on, plant fall tomatoes, squash, and beans early, and toward month's end start direct-sowing the fall cool-season crops as the worst heat eases.
What's at the Farmers Market
August keeps Arkansas markets brimming with late-summer abundance. The watermelons from Hope and elsewhere are still rolling, along with cantaloupe and other melons, and the last of the peaches and blackberries finish the stone-fruit and berry season. Vine-ripe tomatoes are at their fullest, and okra, southern peas, and peppers are at peak.
The full summer vegetable lineup is on the tables — sweet corn, summer squash, cucumbers, snap beans, eggplant, and field tomatoes by the bushel for canning and putting up. The first muscadines and scuppernongs may appear late in the month, a true Southern fruit, and the earliest fall apples begin in the Ozark orchards. Local honey, fresh herbs, and pasture eggs round out the markets.
For selection and storage: choose a ripe watermelon by its creamy ground spot and a dull thump, and refrigerate only once cut. Keep tomatoes stem-side down at room temperature, never chilled. Refrigerate the last blackberries unwashed in a single layer. Store muscadines cold and use them quickly, and keep early apples firm and cool in the crisper, where they hold for weeks.
Night Sky This Month
August is one of the best stargazing months of the Arkansas year, combining warm comfortable nights, the glorious summer Milky Way, and the year's most popular meteor shower. The state's dark-sky destinations shine now — the Buffalo National River International Dark Sky Park in the Ozarks, the cooler high overlook at Mount Magazine State Park, and the dark Ouachita National Forest — and Arkansas state parks run summer star parties, often timed to the meteors.
The headline event is the Perseid meteor shower, which peaks around August 12 and is the most-watched shower of the year, capable of producing dozens of bright, fast meteors per hour from a dark, moonless sky. The Perseids radiate from the northeast near the constellation Perseus and are best after midnight — find a dark Ozark or Ouachita site, let your eyes adapt, and watch as much sky as you can.
Around the meteors, the summer sky is at its richest. The Summer Triangle of Vega, Deneb, and Altair stands overhead, and the heart of the Milky Way blazes through Sagittarius and Scorpius in the south — a breathtaking river of stars from a truly dark site. Because the exact Perseid peak and the planets' positions shift each year, check the printable Arkansas night-sky guide for this year's specific viewing nights and planet visibility from your latitude.
Butterflies & Pollinators
August is a peak butterfly month in Arkansas, with late-summer broods abundant and the first stir of the monarch migration. The monarchs are still breeding on milkweed, building the special long-lived generation that will fly all the way to Mexico, and you will begin to see more of them on the late-summer prairie flowers as the month ends.
The gardens, prairies, and fields are alive with butterflies. The swallowtails remain abundant — eastern tiger, pipevine, spicebush, black, and the huge giant swallowtail — and the bright orange Gulf fritillaries are now at their peak across the south on passionflower. Common buckeyes, painted and American ladies, great spangled fritillaries, silver-spotted skippers, and clouds of small grass skippers crowd the blazing star, ironweed, and Joe-Pye weed.
To support them now: the late-summer nectar plants are crucial fuel for the gathering monarchs and the late broods — keep native blazing star, ironweed, Joe-Pye weed, goldenrod, and garden zinnias and lantana blooming. Leave the milkweed standing for the migratory monarch generation now developing, and provide a damp puddling spot for the swallowtails in the late-summer heat.
Trees This Month
August holds the Arkansas forest in tired, deep late-summer green, beginning to show the first faint hints of the season turning. The crape myrtles are in full glory in towns and yards, their long-lasting clusters of pink, white, lavender, and watermelon-red flowers the signature bloom of the Southern late summer, and the native sourwood hangs its sprays of small white bells in the Ouachita woods, a fine late-season nectar source.
The trees are heavy with ripening fruit and nuts now. The persimmons hang full but still hard and green, the pawpaws ripen in the bottomland thickets, the oaks are dropping the first acorns, and the pecans and hickories are filling their shells. The black gum (tupelo) and the occasional stressed or dry-site tree show the very first red and orange leaves, a quiet preview of the fall color to come. The loblolly and shortleaf pines stand dark across the south and the Ouachitas, and the bald cypress remains lush and green over the Cache River swamps.
Go deeper with the Arkansas guides
The complete Arkansas birding, native-plant, wildflower, and night-sky guides — or the whole year in one bundle.
Same month elsewhere: August in California · August in Colorado · August in Connecticut