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Region profile

Flint Hills

Flint Hills mark the western edge of the tallgrass prairie and contain the largest remaining intact tallgrass prairie in the Great Plains, characterized by rolling hills, cherty limestone bedrock, and a humid continental climate, with land primarily used for grazing beef cattle.

Zone

Interior

Common Name

Flint Hills

CEC Level III Code

9.4.4

CEC Level II Code

9.4 South-Central Semi-Arid Prairies

Overview

About This Region

The Flint Hills, a vital expanse of tallgrass prairie, supports diverse pollinators. This region’s unique landscape is threatened by habitat fragmentation from development and invasive species, which reduces the availability of native host and nectar plants. Furthermore, controlled burns, a key management practice, must be carefully timed to minimize negative impacts on overwintering and nesting pollinators, while preventing the spread of harmful pesticides is crucial for their survival.

Region facts

At a glance

AliasesFlint Hills
Geographic Range
The Flint Hills, located in eastern Kansas and north-central Oklahoma, mark the western edge of the tallgrass prairie and contain the largest remaining intact tallgrass prairie in the Great Plains.
Climate SnapshotThe Flint Hills ecoregion has a severe, mid-latitude, humid continental climate marked by hot summers, mild to severe winters, a mean annual temperature of approximately 12°C to 15°C, and mean annual precipitation of 880 mm.
Terrain ProfileThe terrain consists of rolling hills, cuestas, and relatively narrow steep valleys, with elevations ranging from 245 to 495 masl.
Vegetation CoverThe Flint Hills contain the largest remaining intact tallgrass prairie in the Great Plains, dominated by big bluestem, switchgrass, Indiangrass, and little bluestem.
Wildlife HabitatThe Flint Hills region is home to common species such as white-tailed deer, coyote, bobcat, red fox, and various smaller mammals and birds, with some reintroduction of bison.

Eco snapshot

What shapes this region

Climate pattern

  • Strong seasonal swings are typical, but timing varies by microclimate (small local weather differences), slope, and exposure.
  • Dry spells can happen; choose plants that handle periodic drought once established.
  • Open, sunny conditions are common—many prairie plants prefer full sun.

Vegetation profile

The Flint Hills contain the largest remaining intact tallgrass prairie in the Great Plains, dominated by big bluestem, switchgrass, Indiangrass, and little bluestem.

Wildlife profile

The Flint Hills region is home to common species such as white-tailed deer, coyote, bobcat, red fox, and various smaller mammals and birds, with some reintroduction of bison.

Why pollinators matter here

  • Prairie wildflowers can provide long-season nectar and pollen when planted for “continuous bloom.”
  • Many native bees rely on nearby bare ground or grassy edges for nesting.
  • Diverse flower shapes support a wider range of pollinators (small bees, larger bees, butterflies, and beneficial flies).
  • Connected patches (even small ones) help pollinators move through developed or farmed areas.

Seasonal timing

Planting seasons

Timing varies by microclimate; use this as a flexible guide.

Seasonal timing

  • Early season: plan and prep beds; start with early-blooming natives and cool-season establishment when conditions allow.
  • Spring to early summer: a common window for planting plugs/potted natives and establishing new beds with regular watering.
  • Late summer to fall: often a good time for planting many perennials and sowing certain native seeds for natural cold-stratification.

Quick seasonal checklist

  • Choose 3–5 species for each bloom window (early / mid / late).
  • Plant in clumps (think “patches,” not single stems).
  • Add a water plan for the first growing season.
  • Leave a small area for nesting (bare soil, stems, leaf litter).

Yearly needs

Pollinator calendar

What pollinators need throughout the year, and what to do about it.

Late winter / early springEarly nectar/pollen; safe shelter as insects emergeKeep some leaf litter and standing stems; plan for early-blooming natives; avoid early-season pesticide use
SpringSteady bloom; nesting sites starting upPlant or add plugs; create small bare-soil patches; add a shallow water source with stones for landing
SummerHeat-resilient flowers; continuous nectar/pollenPrioritize drought-tolerant native blooms; water new plantings; keep flowers coming in waves
Late summer / fall“Last chance” fuel for migration and winter prepPlant late-blooming natives; avoid cutting everything back; let some seedheads stand
Winter (or dormant season)Protected overwintering habitatLeave stems, grasses, and leaf litter; delay heavy cleanup until later in the dormant season

Keystone plants

Keystone plants by season

Mix early, mid, and late bloomers so pollinators always find food.

Early Bloom

  • Golden alexanders
  • Prairie smoke
  • Spiderwort
  • Purple prairie clover
  • Butterfly milkweed
  • Wild bergamot (bee balm)
  • Purple coneflower
  • Black-eyed Susan
  • Leadplant

Mid-Season Bloom

Late-Season Bloom

  • Blazing star (gayfeather)
  • Stiff goldenrod
  • Aromatic aster
  • Maximilian sunflower

Seed mix concept

A Billion Small Steps Seed mix

A simple prairie-style mix works best when it’s designed like a relay race—something blooming early, then a strong summer “bridge,” then a fall finish.

Spring starter

Spring starter: include early bloomers so emerging pollinators find food quickly.

Summer bridge

Summer bridge: include several mid-season prairie flowers that can handle sun and periodic dry spells.

Fall finisher

Fall finisher: include late-season asters/goldenrods-type bloomers so pollinators can fuel up before winter.

What You Can Do

Make a difference for native habitats.

Turn this knowledge into action. Whether you plant a single pot or a whole garden, you are building a vital bridge for local biodiversity.

Join the movement to restore our shared habitats.

Native plants

Plants that thrive in this region

Asters (*Symphyotrichum* spp.)

Asters

Asters are late-season wildflowers that bring a burst of daisy-like blooms when many gardens are winding down, making them a reliable choice for pollinator-friendly planting.

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Blanketflowers (*Gaillardia* spp.)

Blanketflowers

Blanketflowers (Gaillardia) are bright, long-blooming wildflowers that can bring steady color and pollinator visits to sunny gardens, schoolyards, and even containers.

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Blazing stars

Blazing stars (Liatris) are upright, purple-pink wildflowers that bloom in showy spikes and are well-loved by many pollinators. They’re a strong choice for sunny gardens, borders, and meadow-style plantings.

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Clovers (*Trifolium* spp.)

Clovers

Clovers are small, easygoing plants in the genus Trifolium that can add nectar and pollen to gardens, lawns, and pots while helping cover bare soil.

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Coneflowers (*Echinacea* (genus))

Coneflowers

Coneflowers (Echinacea) are tough, long-blooming wildflowers that bring steady color and reliable nectar and pollen to gardens, schoolyards, and even large containers.

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Coreopsis (*Coreopsis* spp.)

Coreopsis

Coreopsis (often called tickseed) is a cheerful, long-blooming group of wildflowers that can brighten gardens and containers while offering easy-to-find nectar and pollen for many pollinators.

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Goldenrods (*Solidago* spp.)

Goldenrods

Goldenrods are tough, sunny wildflowers in the genus Solidago that light up late-season gardens with golden blooms and provide reliable nectar and pollen when many other flowers are fading.

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Ironweeds (*Vernonia* (genus))

Ironweeds

Ironweeds are tall, purple-blooming wildflowers in the genus Vernonia that bring late-season color and steady nectar to pollinator gardens.

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Milkweeds (*Asclepias* (genus))

Milkweeds

Milkweeds are tough, nectar-rich wildflowers in the genus Asclepias that can turn a garden bed, schoolyard edge, or even a sunny pot into a pollinator stop.

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Mountain mints (Pycnanthemum (genus))

Mountain mints

Mountain mints are tough, fragrant native wildflowers that bloom in summer and are famous for drawing in a busy mix of pollinators. They’re easy to grow, handle a range of garden conditions, and make a great “plant it and watch it” choice for pollinator patches.

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Prairie clovers (*Dalea* spp.)

Prairie clovers

Prairie clovers (genus Dalea) are prairie wildflowers with tidy, clover-like leaves and bottlebrush-style blooms that are popular with many pollinators. They’re a great choice for sunny, well-drained spots where you want long-lasting summer color without fussy care.

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Prairie coneflowers (*Ratibida* spp.)

Prairie coneflowers

Prairie coneflowers (Ratibida) are tough, sunny wildflowers with drooping petals and a bold cone-shaped center that pollinators can easily find. They’re a great choice for low-fuss gardens, schoolyards, and naturalized patches where you want long-lasting summer color.

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Sunflowers (*Helianthus* spp.)

Sunflowers

Native sunflowers are bright, tough wildflowers in the genus Helianthus that feed pollinators and add cheerful color from mid-season into fall.

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Wild bergamot & bee balms (*Monarda* spp.)

Wild bergamot & bee balms

Wild bergamot and other bee balms (the genus Monarda) are easygoing native wildflowers known for their shaggy, pom‑pom blooms that draw in lots of pollinators. They’re a great choice when you want long-lasting summer color and a plant that feels lively with buzzing visitors.

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Wild indigos (*Baptisia* (genus))

Wild indigos

Wild indigos (genus Baptisia) are long-lived native wildflowers known for upright flower spikes, clover-like leaves, and a tough, low-fuss nature once established. They’re a strong choice for pollinator-friendly gardens where you want reliable blooms and a plant that can hold its own without constant care.

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Wild sunflowers’ relatives (*Silphium*)

Wild sunflowers’ relatives

Silphium (often called rosinweed) is a group of tall, tough native wildflowers known for sunflower-like blooms and long-lasting nectar and pollen. They’re a strong choice for pollinator gardens, schoolyards, and naturalized edges where you want big plants that can handle summer heat once established.

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Pollinators

Pollinators active in this region

Bee flies (Family Bombyliidae)

Bee flies

Adults visit flowers for nectar and can move pollen between blooms; their presence is a sign of diverse, functioning habitats.

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Brushfoots (Family Nymphalidae)

Brushfoots

Many brushfoots move pollen between flowers as they feed, and their caterpillars are part of healthy food webs.

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Bumble bees (Genus Bombus)

Bumble bees

Bumble bees are important pollinators of many wildflowers and garden plants, helping ecosystems and food crops reproduce.

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Flower flies / hoverflies

Adults visit flowers for nectar and pollen, and many species’ larvae help keep plant-eating pests in check.

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Hawk / sphinx moths (Family Sphingidae)

Hawk / sphinx moths

They can move pollen between flowers while feeding on nectar, especially for blooms that open or scent up in the evening.

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Leafcutter bees (Genus Megachile)

Leafcutter bees

They move pollen between flowers while foraging, helping many wild plants and garden plants set seed and fruit.

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Mason bees (Genus Osmia)

Mason bees

They move pollen between flowers while foraging, helping many wild plants and garden crops set seed and fruit.

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Mining bees (Genus Andrena)

Mining bees

They move pollen between flowers while foraging, helping many wild plants and garden plants set seed and fruit.

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Paper wasps (Genus Polistes)

Paper wasps

They can move pollen while drinking nectar, and they also help control many plant-eating insects.

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Silkmoths (giant moths) (Family Saturniidae)

Silkmoths (giant moths)

They’re part of healthy food webs and plant communities, and their caterpillars depend on a wide range of native trees and shrubs.

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Skippers (Family Hesperiidae)

Skippers

Skippers visit many flowers for nectar and can help move pollen between blooms while they feed.

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Small nectar moths (micro-moths) (Multiple families (varies))

Small nectar moths (micro-moths)

Many small moths move pollen while feeding on nectar, supporting wild plants and garden blooms—especially in the evening and at night.

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Soldier beetles (Family Cantharidae)

Soldier beetles

Many adults visit flowers and can move pollen between blooms, while also helping control some garden pests.

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Swallowtails (Family Papilionidae)

Swallowtails

Adult swallowtails visit many flowers for nectar and can help move pollen between blooms as they feed.

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Sweat bees (Family Halictidae)

Sweat bees

They help move pollen between flowers in gardens, parks, and natural areas, supporting seed and fruit production.

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Whites & sulphurs (Family Pieridae)

Whites & sulphurs

They visit a wide range of flowers for nectar and can help move pollen between blooms as they feed.

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