New England Aster
Symphyotrichum novae-angliae
Takes the wet center of a rain garden through flood and dry spell alike, happy in clay and loam soil, where it flowers in Sep and Oct.
- Full–part sun
- Average–wet
- 3–5 ft
- Blooms Sep–Oct
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- Connecticut
- Rain garden
Connecticut · Zones 5–7
Native Rain Garden Plants in Connecticut
Moisture-loving natives for rain gardens, pond edges, downspout basins, and the low spots that stay soggy after a storm. Every species here is genuinely native to Connecticut and the wider flora of the Northeast and hardy through zones 5–7 — proven performers for Connecticut's cool, humid continental climate across Northeastern Coastal Forest, not a generic list. Local standouts include New England Aster and Arrowwood Viburnum. A rain garden catches roof and driveway runoff and lets it soak in instead of rushing to the storm drain, and these natives are built for that boom-and-bust of flood then dry. Put the most water-tolerant species in the wet center and the merely moisture-loving ones up on the sloped edges. Once established they handle both the standing water and the dry weeks between storms.
The plants
25 native species for Connecticut
Each one native to your region and hardy in zones 5–7 · see this collection in other states.
Arrowwood Viburnum
Viburnum dentatum
For the wet center of a rain garden and damp low spots, happy in clay and loam soil, where it flowers in May and Jun.
- Sun to shade
- Average–wet
- 6–10 ft
- Blooms May–Jun
Cardinal Flower
Lobelia cardinalis
For the wet center of a rain garden and damp low spots, hardy in zones 3–9, where it blooms Jul through Sep.
- Full–part sun
- Average–wet
- 2–4 ft
- Blooms Jul–Sep
Virginia Bluebells
Mertensia virginica
Happy in the wet center of a rain garden and ground that stays soggy after a storm, spreading 12–18 in, where it blooms Mar through May.
- Part shade
- Average–wet
- 1–2 ft
- Blooms Mar–May
Dense Blazing Star
Liatris spicata
Built for the wet center of a rain garden and the boom-and-bust of storm runoff, magenta flowers, where it flowers in Jul and Aug.
- Full sun
- Average–wet
- 2–4 ft
- Blooms Jul–Aug
Serviceberry
Amelanchier canadensis
Happy in the wet center of a rain garden and ground that stays soggy after a storm, 10–20 ft wide, where it flowers in Apr and May.
- Full–part sun
- Average–wet
- 15–25 ft
- Blooms Apr–May
Golden Alexanders
Zizia aurea
Built for the wet center of a rain garden and the boom-and-bust of storm runoff, 1.5–2.5 ft tall, where it blooms Apr through Jun.
- Full–part sun
- Average–wet
- 1.5–2.5 ft
- Blooms Apr–Jun
Winterberry
Ilex verticillata
For the wet center of a rain garden and damp low spots, reaching 5–10 ft, where it flowers in Jun and Jul.
- Full–part sun
- Average–wet
- 5–10 ft
- Blooms Jun–Jul
Culver's Root
Veronicastrum virginicum
For the wet center of a rain garden and damp low spots, white candelabra flowers, where it blooms Jun through Aug.
- Full–part sun
- Average–wet
- 3–5 ft
- Blooms Jun–Aug
Buttonbush
Cephalanthus occidentalis
Takes the wet center of a rain garden through flood and dry spell alike, white pincushions flowers, where it blooms Jun through Aug.
- Full–part sun
- Average–wet
- 5–10 ft
- Blooms Jun–Aug
Scarlet Beebalm
Monarda didyma
Takes the wet center of a rain garden through flood and dry spell alike, 2.5–4 ft tall, where it flowers in Jul and Aug.
- Full–part sun
- Average–wet
- 2.5–4 ft
- Blooms Jul–Aug
Obedient Plant
Physostegia virginiana
Happy in the wet center of a rain garden and ground that stays soggy after a storm, happy in clay and loam soil, where it flowers in Aug and Sep.
- Full–part sun
- Average–wet
- 2–4 ft
- Blooms Aug–Sep
Great Blue Lobelia
Lobelia siphilitica
Happy in the wet center of a rain garden and ground that stays soggy after a storm, spreading 12–18 in, where it flowers in Aug and Sep.
- Full–part sun
- Average–wet
- 2–3 ft
- Blooms Aug–Sep
Swamp Milkweed
Asclepias incarnata
For the wet center of a rain garden and damp low spots, good through zone 9, where it flowers in Jul and Aug.
- Full–part sun
- Average–wet
- 3–4 ft
- Blooms Jul–Aug
Spotted Joe-Pye Weed
Eutrochium maculatum
Happy in the wet center of a rain garden and ground that stays soggy after a storm, cold-hardy to zone 3, where it blooms Jul through Sep.
- Full–part sun
- Average–wet
- 4–7 ft
- Blooms Jul–Sep
Common Boneset
Eupatorium perfoliatum
Takes the wet center of a rain garden through flood and dry spell alike, hardy in zones 3–8, where it flowers in Aug and Sep.
- Full–part sun
- Average–wet
- 3–5 ft
- Blooms Aug–Sep
Inkberry Holly
Ilex glabra
Built for the wet center of a rain garden and the boom-and-bust of storm runoff, reaching 4–8 ft, where it flowers in May and Jun.
- Full–part sun
- Average–wet
- 4–8 ft
- Blooms May–Jun
Ninebark
Physocarpus opulifolius
For the wet center of a rain garden and damp low spots, reaching 5–10 ft, where it flowers in May and Jun.
- Full–part sun
- Dry to wet
- 5–10 ft
- Blooms May–Jun
Red-Twig Dogwood
Cornus sericea
Happy in the wet center of a rain garden and ground that stays soggy after a storm, good through zone 7, where it flowers in May and Jun.
- Full–part sun
- Average–wet
- 6–9 ft
- Blooms May–Jun
Blue Vervain
Verbena hastata
Happy in the wet center of a rain garden and ground that stays soggy after a storm, for clay and loam ground, where it blooms Jul through Sep.
- Full–part sun
- Average–wet
- 3–5 ft
- Blooms Jul–Sep
Spicebush
Lindera benzoin
Built for the wet center of a rain garden and the boom-and-bust of storm runoff, hardy in zones 4–9, where it flowers in Mar and Apr.
- Part shade
- Average–wet
- 6–12 ft
- Blooms Mar–Apr
American Elderberry
Sambucus canadensis
Takes the wet center of a rain garden through flood and dry spell alike, spreading 6–12 ft, where it flowers in Jun and Jul.
- Full–part sun
- Average–wet
- 6–12 ft
- Blooms Jun–Jul
Big Bluestem
Andropogon gerardii
For the wet center of a rain garden and damp low spots, reaching 4–7 ft.
- Full sun
- Dry to wet
- 4–7 ft
- Fall color
Switchgrass
Panicum virgatum
For the wet center of a rain garden and damp low spots, 2–3 ft wide.
- Full–part sun
- Dry to wet
- 3–6 ft
- Fall color
1 more also qualify: Cinnamon Fern.
Sourcing
Where to find these in Connecticut
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.