Roundleaf Alumroot
Heuchera cylindrica
- Native to:
- Canada, United States
Matt Lavin (www.flickr.com) from Bozeman, Montana, USA
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Saxifragaceae
- Genus:
- Heuchera
- Species:
- Heuchera cylindrica
- USDA Symbol:
- HECY2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 90 cm
- Light Requirements:
- Part Shade,Shade
- Drought Tolerance:
- Medium
- Bloom Months:
- apr,may,jun,jul
- Bloom Colors:
- cream, white, greenish-yellow
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
Reported Fauna Sightings
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies, hummingbirds
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from basal rosette following fire; found in rocky openings maintained by periodic fire in some habitats.
Soil Requirements
- Soil Type:
- rocky, well-drained loamy soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to rocky slopes and open woodlands
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–90 days
- Germination Time:
- 14–42 days
- Notes:
- Requires light for germination; surface sow and do not cover seeds. Cold stratification improves germination rates.
The above propagation data sourced from Claude AI
Pre-treatment: Seeds require cold, moist stratification for 60-90 days. Imbibing seeds in water for 1 hour prior to stratification may improve results. Light treatment during stratification may increase germination rates.
Establishment: Germination rates vary significantly based on stratification and light conditions. Seeds are very small and collected when capsules begin to split. They are stored in paper bags or envelopes at room temperature until cleaned.
Source: npn.rngr.net
ORGHPS Germination Guide: Sow @ 20°C. Seed germinates within 3 months Requires light or the seed is very fine. Surface sow and expose to light. * better germination if seed is stored for 2 years