Crevice alumroot
Heuchera micrantha
Last reviewed: August 2026
Crevice alumroot (Heuchera micrantha) is a perennial forb native to CA, OR, WA, ID and 2 more states. It blooms in April, May, June, and July. The flowers draw bees and hummingbirds. It reads as an intentional, HOA-friendly planting in the right spot.
Toxicity unknown
Crevice alumroot (Heuchera micrantha) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
part shade
Water
medium
Size
6"–24" H × 12"–18" W
Bloom
Apr, May, Jun, Jul
Native to
CA, OR, WA, ID and 2 more states
Pollinators
bees, hummingbirds
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 437 programs across 44 states, each with a link to the provider and the date we last checked it.
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A low, mounding evergreen perennial forb with rounded, lobed, maple-like leaves often marked with silver or bronze tones. Slender, wiry flower stalks rise above the foliage in late spring bearing airy sprays of tiny white flowers. Prefers partial shade and consistently moist, well-drained soil, especially in rocky or crevice settings.
Growing Crevice alumroot
Grow Crevice alumroot in part shade and medium water. Mature plants reach 6 to 24 inches tall and spread 12 to 18 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Crevice alumroot is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: foundation, mid zone, front yard.
Wildlife value
Delicate spring flower sprays attract bees and occasionally hummingbirds seeking early-season nectar.
Common questions
- How much sun does Crevice alumroot need?
- Crevice alumroot grows best in part shade conditions.
- When does Crevice alumroot bloom?
- Crevice alumroot blooms in April, May, June, and July.
- Where is Crevice alumroot native?
- Crevice alumroot (Heuchera micrantha) is native to CA, OR, WA, ID and 2 more states, per vouchered herbarium specimen records and regional native plant society lists.
- What pollinators does Crevice alumroot attract?
- Crevice alumroot draws bees and hummingbirds.
- Is Crevice alumroot HOA-friendly?
- Crevice alumroot is generally an HOA-friendly choice in the right placement, with low maintenance.
Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Crevice alumroot? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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