Obedient Plant
Physostegia virginiana
A sun-lover that flowers in Aug and Sep, standing 2–4 ft tall.
- Full–part sun
- Average–wet
- 2–4 ft
- Blooms Aug–Sep
Illinois · Zones 5–7
Native Plants for Full Sun in Illinois
Sun-loving native wildflowers, grasses, and shrubs for the hot, bright, open parts of the yard that bake all afternoon. For Illinois, the right natives are shaped by Central Tallgrass Prairie and a humid continental climate. Every species below, from Obedient Plant and Golden Alexanders to the rest of the list, is genuinely native to Illinois and the wider flora of the Midwest and hardy through zones 5–7. A spot with six or more hours of direct sun is prime real estate for the prairie and meadow natives that evolved in the open — most want exactly that much light to bloom hard and stand up straight. Give them lean, well-drained soil rather than rich and pampered, skip the fertilizer, and they will reward the tough love with more flowers and sturdier stems.
The plants
58 native species for Illinois
Each one native to your region and hardy in zones 5–7 · see this collection in other states.
Golden Alexanders
Zizia aurea
A sun-lover that blooms Apr through Jun, standing 1.5–2.5 ft tall.
- Full–part sun
- Average–wet
- 1.5–2.5 ft
- Blooms Apr–Jun
Pasque Flower
Pulsatilla patens
Made for open ground — flowers in Mar and Apr, 6–12 in tall.
- Full sun
- Dry
- 6–12 in
- Blooms Mar–Apr
Aromatic Aster
Symphyotrichum oblongifolium
A sun-lover that blooms Sep through Nov, standing 1.5–2.5 ft tall.
- Full sun
- Dry
- 1.5–2.5 ft
- Blooms Sep–Nov
Purple Coneflower
Echinacea purpurea
Give it full sun and it blooms Jun through Sep, 2–4 ft tall.
- Full–part sun
- Dry–average
- 2–4 ft
- Blooms Jun–Sep
Wild Bergamot
Monarda fistulosa
Made for open ground — blooms Jun through Aug, 2–4 ft tall.
- Full–part sun
- Dry–average
- 2–4 ft
- Blooms Jun–Aug
Showy Goldenrod
Solidago speciosa
A sun-lover that flowers in Sep and Oct, standing 2–4 ft tall.
- Full–part sun
- Dry–average
- 2–4 ft
- Blooms Sep–Oct
Dense Blazing Star
Liatris spicata
A sun-lover that flowers in Jul and Aug, standing 2–4 ft tall.
- Full sun
- Average–wet
- 2–4 ft
- Blooms Jul–Aug
Arrowwood Viburnum
Viburnum dentatum
Made for open ground — flowers in May and Jun, 6–10 ft tall.
- Sun to shade
- Average–wet
- 6–10 ft
- Blooms May–Jun
Foxglove Beardtongue
Penstemon digitalis
A sun-lover that flowers in May and Jun, standing 2–4 ft tall.
- Full–part sun
- Dry–average
- 2–4 ft
- Blooms May–Jun
Eastern Redbud
Cercis canadensis
Made for open ground — flowers in Mar and Apr, 20–30 ft tall.
- Full–part sun
- Dry–average
- 20–30 ft
- Blooms Mar–Apr
Spotted Joe-Pye Weed
Eutrochium maculatum
Give it full sun and it blooms Jul through Sep, 4–7 ft tall.
- Full–part sun
- Average–wet
- 4–7 ft
- Blooms Jul–Sep
Great Blue Lobelia
Lobelia siphilitica
Give it full sun and it flowers in Aug and Sep, 2–3 ft tall.
- Full–part sun
- Average–wet
- 2–3 ft
- Blooms Aug–Sep
Swamp Milkweed
Asclepias incarnata
Give it full sun and it flowers in Jul and Aug, 3–4 ft tall.
- Full–part sun
- Average–wet
- 3–4 ft
- Blooms Jul–Aug
Culver's Root
Veronicastrum virginicum
Made for open ground — blooms Jun through Aug, 3–5 ft tall.
- Full–part sun
- Average–wet
- 3–5 ft
- Blooms Jun–Aug
Trumpet Honeysuckle
Lonicera sempervirens
A sun-lover that blooms Apr through Sep, standing 8–15 ft tall.
- Full–part sun
- Dry–average
- 8–15 ft
- Blooms Apr–Sep
Chocolate Flower
Berlandiera lyrata
A sun-lover that blooms May through Sep, standing 1–2 ft tall.
- Full sun
- Dry
- 1–2 ft
- Blooms May–Sep
Serviceberry
Amelanchier canadensis
A sun-lover that flowers in Apr and May, standing 15–25 ft tall.
- Full–part sun
- Average–wet
- 15–25 ft
- Blooms Apr–May
New England Aster
Symphyotrichum novae-angliae
Made for open ground — flowers in Sep and Oct, 3–5 ft tall.
- Full–part sun
- Average–wet
- 3–5 ft
- Blooms Sep–Oct
Butterfly Weed
Asclepias tuberosa
Give it full sun and it blooms Jun through Aug, 1.5–2.5 ft tall.
- Full sun
- Dry
- 1.5–2.5 ft
- Blooms Jun–Aug
Black-Eyed Susan
Rudbeckia hirta
Give it full sun and it blooms Jun through Sep, 1.5–3 ft tall.
- Full–part sun
- Dry–average
- 1.5–3 ft
- Blooms Jun–Sep
Blanketflower
Gaillardia aristata
Give it full sun and it blooms Jun through Sep, 1–2.5 ft tall.
- Full sun
- Dry
- 1–2.5 ft
- Blooms Jun–Sep
Cardinal Flower
Lobelia cardinalis
Give it full sun and it blooms Jul through Sep, 2–4 ft tall.
- Full–part sun
- Average–wet
- 2–4 ft
- Blooms Jul–Sep
Short-Toothed Mountain Mint
Pycnanthemum muticum
Give it full sun and it blooms Jul through Sep, 2–3 ft tall.
- Full–part sun
- Dry–average
- 2–3 ft
- Blooms Jul–Sep
34 more also qualify: Prairie Blazing Star, Scarlet Beebalm, Lanceleaf Coreopsis, Prairie Smoke, Cup Plant, Anise Hyssop, Maximilian Sunflower, Buttonbush, Common Yarrow, Winterberry, Red-Twig Dogwood, Sideoats Grama, New Jersey Tea, Blue Grama, Showy Milkweed, Common Milkweed, American Elderberry, Virginia Creeper, Purple Prairie Clover, Common Boneset, Stiff Goldenrod, Creeping Phlox, Rattlesnake Master, Bearberry, Ninebark, Compass Plant, Blue Vervain, Wild Lupine, Fragrant Sumac, Little Bluestem, Switchgrass, Indian Grass, Prairie Dropseed, Big Bluestem.
Sourcing
Where to find these in Illinois
Seeds & live plants on Amazon
Seed packets, plugs, and starter plants for many of these species ship to your door.
Browse on AmazonSome links here are affiliate links — we may earn a small commission at no extra cost to you. The surest source of locally-adapted stock is a native-plant nursery or a native plant society sale in your area.