Crevice Alumroot
Heuchera micrantha
- Native to:
- Canada, United States
Didier Descouens
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Saxifragaceae
- Genus:
- Heuchera
- Species:
- Heuchera micrantha
- USDA Symbol:
- HEMI7
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 60 cm
- Light Requirements:
- Full Sun,Part Shade,Shade
- Drought Tolerance:
- Medium
- Bloom Months:
- may,jun,jul
- Bloom Colors:
- white, pink
- Ground Cover:
- Yes
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Keystone Species Ranking
- Caterpillar Keystone:
- ★☆☆☆☆ Butterfly & moth species supported by this genus (NWF)
Host Plant for Caterpillars
Greya piperella
Garden & Ecology Notes
- Wildlife Value:
- hummingbirds, butterflies, bees
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
- Notes:
- Prefers shaded or partially shaded areas.
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–42 days
- Notes:
- Seeds require light for germination; do not cover. Surface sow on moist medium.
The above propagation data sourced from Claude AI
Pre-treatment: Sow seed into trays filled with stabilized medium plugs (Q-plugs). Seal trays inside plastic bags and refrigerate at 1 to 3 °C for 70 days. Check trays weekly and keep moist. If mold is evident, treat with 1% hydrogen peroxide.
Establishment: Native to moist, wooded banks and rocks in inner coastal areas from central California to British Columbia and west central Idaho.
Source: npn.rngr.net
ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.