Wild Geranium
Geranium maculatum
Weaves a 1.5–2 ft-tall mat 1.5–2 ft across to blanket bare ground, good through zone 8; it blooms Apr through Jun.
- Part shade
- Average
- 1.5–2 ft
- Blooms Apr–Jun
Iowa · Zones 4–6
Native Groundcover Plants in Iowa
Low, spreading natives that knit together to cover bare ground, smother weeds, and replace thirsty lawn or mulch. Every species here is genuinely native to Iowa and the wider flora of the Midwest and hardy through zones 4–6 — proven performers for Iowa's humid continental, cold winters climate across Western Corn Belt tallgrass prairie, not a generic list. Local standouts include Wild Geranium and Prairie Smoke. A living native groundcover does everything mulch does and then keeps doing it for free — covering soil, blocking weeds, and feeding wildlife as it goes. Match the spreader to the site (sun or shade, wet or dry), plant on tight centers so they close ranks in a season or two, and weed faithfully that first year while they fill in.
The plants
14 native species for Iowa
Each one native to your region and hardy in zones 4–6 · see this collection in other states.
Prairie Smoke
Geum triflorum
Settles in as a weed-suppressing carpet 12–18 in wide, no taller than 6–16 in, and it flowers in Apr and May.
- Full–part sun
- Dry
- 6–16 in
- Blooms Apr–May
Foamflower
Tiarella cordifolia
Settles in as a weed-suppressing carpet 1–2 ft wide, no taller than 6–12 in — it flowers in Apr and May.
- Part shade
- Average
- 6–12 in
- Blooms Apr–May
Common Yarrow
Achillea millefolium
Weaves a 1.5–3 ft-tall mat 1.5–2 ft across to blanket bare ground, white (wild form) flowers — it blooms May through Aug.
- Full sun
- Dry–average
- 1.5–3 ft
- Blooms May–Aug
Woodland Phlox
Phlox divaricata
Settles in as a weed-suppressing carpet 12–18 in wide, no taller than 10–15 in, flowering as it flowers in Apr and May.
- Part shade
- Average
- 10–15 in
- Blooms Apr–May
Creeping Phlox
Phlox subulata
A low 4–8 in-tall carpet that closes ranks 1.5–2 ft wide and shades out weeds — it flowers in Apr and May.
- Full–part sun
- Dry–average
- 4–8 in
- Blooms Apr–May
Wild Ginger
Asarum canadense
Settles in as a weed-suppressing carpet 12–18 in wide, no taller than 4–8 in, flowering as it flowers in Apr and May.
- Part shade
- Average
- 4–8 in
- Blooms Apr–May
Blue Grama
Bouteloua gracilis
A mat-forming native, 8–20 in tall and 8–16 in wide, that fills in and crowds out weeds, and it blooms Jun through Aug.
- Full sun
- Dry
- 8–20 in
- Blooms Jun–Aug
Fragrant Sumac
Rhus aromatica
Knits across the ground 5–10 ft wide and just 2–6 ft tall, no mowing needed, flowering as it flowers in Mar and Apr.
- Full–part sun
- Dry
- 2–6 ft
- Blooms Mar–Apr
Bearberry
Arctostaphylos uva-ursi
Weaves a 4–8 in-tall mat 3–6 ft across to blanket bare ground, happy in sand and rocky soil, flowering as it flowers in Apr and May.
- Full–part sun
- Dry
- 4–8 in
- Blooms Apr–May
Virginia Creeper
Parthenocissus quinquefolia
A living mulch at 30–50 ft tall, fanning 10–20 ft wide to cover soil and block weeds, and it flowers in Jun.
- Sun to shade
- Dry–average
- 30–50 ft
- Blooms Jun
Christmas Fern
Polystichum acrostichoides
A mat-forming native, 1–2 ft tall and 1.5–2.5 ft wide, that fills in and crowds out weeds.
- Part shade
- Dry–average
- 1–2 ft
- Evergreen
Prairie Dropseed
Sporobolus heterolepis
Runs 2–3 ft wide and stays ankle-low at 2–3 ft, holding soil where lawn won't.
- Full sun
- Dry–average
- 2–3 ft
- Fall color
Pennsylvania Sedge
Carex pensylvanica
A low 6–12 in-tall carpet that closes ranks 1–2 ft wide and shades out weeds.
- Part shade
- Dry–average
- 6–12 in
- Foliage
Sourcing
Where to find these in Iowa
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.