Wild Bergamot
Monarda fistulosa
At home in the dense clay that defeats most perennials, 2–4 ft tall — it blooms Jun through Aug.
- Full–part sun
- Dry–average
- 2–4 ft
- Blooms Jun–Aug
Minnesota · Zones 3–5
Native Plants for Clay Soil in Minnesota
Native plants that root happily into heavy clay — the dense, slow-draining soil that defeats so many garden-center perennials. Minnesota sits in a landscape of Northern tallgrass prairie & North Woods, and the natives that thrive here are the ones built for its cold continental character. The list below — led by Wild Bergamot and Great Blue Lobelia — is filtered to species genuinely native to Minnesota and the wider flora of the Midwest and hardy through zones 3–5. Heavy clay is actually fertile and moisture-holding; the trick is choosing plants whose deep, muscular roots can punch through it and even improve it over time. Avoid working clay when it is wet, plant a little high to keep crowns from sitting in water, and mulch to keep the surface from baking into a crust. These natives do the soil-building for you.
The plants
48 native species for Minnesota
Each one native to your region and hardy in zones 3–5 · see this collection in other states.
Great Blue Lobelia
Lobelia siphilitica
Roots straight into heavy clay and even improves it, standing 2–3 ft tall; it flowers in Aug and Sep.
- Full–part sun
- Average–wet
- 2–3 ft
- Blooms Aug–Sep
Foxglove Beardtongue
Penstemon digitalis
Roots straight into heavy clay and even improves it, standing 2–4 ft tall; it flowers in May and Jun.
- Full–part sun
- Dry–average
- 2–4 ft
- Blooms May–Jun
Swamp Milkweed
Asclepias incarnata
Roots straight into heavy clay and even improves it, standing 3–4 ft tall, and it flowers in Jul and Aug.
- Full–part sun
- Average–wet
- 3–4 ft
- Blooms Jul–Aug
Winterberry
Ilex verticillata
Roots straight into heavy clay and even improves it, standing 5–10 ft tall; it flowers in Jun and Jul.
- Full–part sun
- Average–wet
- 5–10 ft
- Blooms Jun–Jul
Purple Coneflower
Echinacea purpurea
Roots straight into heavy clay and even improves it, standing 2–4 ft tall; it blooms Jun through Sep.
- Full–part sun
- Dry–average
- 2–4 ft
- Blooms Jun–Sep
Golden Alexanders
Zizia aurea
At home in the dense clay that defeats most perennials, 1.5–2.5 ft tall, and it blooms Apr through Jun.
- Full–part sun
- Average–wet
- 1.5–2.5 ft
- Blooms Apr–Jun
Eastern Redbud
Cercis canadensis
A clay-buster — thrives in the slow-draining ground, 20–30 ft tall — it flowers in Mar and Apr.
- Full–part sun
- Dry–average
- 20–30 ft
- Blooms Mar–Apr
Aromatic Aster
Symphyotrichum oblongifolium
Roots straight into heavy clay and even improves it, standing 1.5–2.5 ft tall; it blooms Sep through Nov.
- Full sun
- Dry
- 1.5–2.5 ft
- Blooms Sep–Nov
Common Yarrow
Achillea millefolium
At home in the dense clay that defeats most perennials, 1.5–3 ft tall — it blooms May through Aug.
- Full sun
- Dry–average
- 1.5–3 ft
- Blooms May–Aug
New England Aster
Symphyotrichum novae-angliae
Punches its roots through dense clay where garden-center perennials sulk, at 3–5 ft tall — it flowers in Sep and Oct.
- Full–part sun
- Average–wet
- 3–5 ft
- Blooms Sep–Oct
Obedient Plant
Physostegia virginiana
Punches its roots through dense clay where garden-center perennials sulk, at 2–4 ft tall, and it flowers in Aug and Sep.
- Full–part sun
- Average–wet
- 2–4 ft
- Blooms Aug–Sep
Culver's Root
Veronicastrum virginicum
Punches its roots through dense clay where garden-center perennials sulk, at 3–5 ft tall, and it blooms Jun through Aug.
- Full–part sun
- Average–wet
- 3–5 ft
- Blooms Jun–Aug
Cup Plant
Silphium perfoliatum
A clay-buster — thrives in the slow-draining ground, 5–8 ft tall; it blooms Jul through Sep.
- Full–part sun
- Average–wet
- 5–8 ft
- Blooms Jul–Sep
Butterfly Weed
Asclepias tuberosa
At home in the dense clay that defeats most perennials, 1.5–2.5 ft tall, and it blooms Jun through Aug.
- Full sun
- Dry
- 1.5–2.5 ft
- Blooms Jun–Aug
Maximilian Sunflower
Helianthus maximiliani
A clay-buster — thrives in the slow-draining ground, 5–8 ft tall, flowering as it blooms Aug through Oct.
- Full sun
- Dry–average
- 5–8 ft
- Blooms Aug–Oct
Arrowwood Viburnum
Viburnum dentatum
Roots straight into heavy clay and even improves it, standing 6–10 ft tall, and it flowers in May and Jun.
- Sun to shade
- Average–wet
- 6–10 ft
- Blooms May–Jun
Short-Toothed Mountain Mint
Pycnanthemum muticum
At home in the dense clay that defeats most perennials, 2–3 ft tall, and it blooms Jul through Sep.
- Full–part sun
- Dry–average
- 2–3 ft
- Blooms Jul–Sep
Black-Eyed Susan
Rudbeckia hirta
At home in the dense clay that defeats most perennials, 1.5–3 ft tall — it blooms Jun through Sep.
- Full–part sun
- Dry–average
- 1.5–3 ft
- Blooms Jun–Sep
Scarlet Beebalm
Monarda didyma
Roots straight into heavy clay and even improves it, standing 2.5–4 ft tall, flowering as it flowers in Jul and Aug.
- Full–part sun
- Average–wet
- 2.5–4 ft
- Blooms Jul–Aug
Buttonbush
Cephalanthus occidentalis
Punches its roots through dense clay where garden-center perennials sulk, at 5–10 ft tall — it blooms Jun through Aug.
- Full–part sun
- Average–wet
- 5–10 ft
- Blooms Jun–Aug
Dense Blazing Star
Liatris spicata
Roots straight into heavy clay and even improves it, standing 2–4 ft tall; it flowers in Jul and Aug.
- Full sun
- Average–wet
- 2–4 ft
- Blooms Jul–Aug
Cardinal Flower
Lobelia cardinalis
At home in the dense clay that defeats most perennials, 2–4 ft tall, flowering as it blooms Jul through Sep.
- Full–part sun
- Average–wet
- 2–4 ft
- Blooms Jul–Sep
Trumpet Honeysuckle
Lonicera sempervirens
A clay-buster — thrives in the slow-draining ground, 8–15 ft tall; it blooms Apr through Sep.
- Full–part sun
- Dry–average
- 8–15 ft
- Blooms Apr–Sep
24 more also qualify: Spotted Joe-Pye Weed, Prairie Blazing Star, Smooth Hydrangea, Serviceberry, Ninebark, Showy Milkweed, Compass Plant, Blue Vervain, Virginia Creeper, Common Milkweed, Stiff Goldenrod, Rattlesnake Master, Red-Twig Dogwood, Blue Grama, American Elderberry, Sideoats Grama, Spicebush, Common Boneset, Fragrant Sumac, Indian Grass, Big Bluestem, Switchgrass, Cinnamon Fern, Little Bluestem.
Sourcing
Where to find these in Minnesota
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.