Roundleaf Hawthorn
Crataegus lumaria
- Native to:
- Canada, United States
iNaturalist: © michael_oldham (iNaturalist #102728308)





Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Rosaceae
- Genus:
- Crataegus
- Species:
- Crataegus lumaria
- USDA Symbol:
- CRLU3
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Tree
- Height:
- 800 cm
- Drought Tolerance:
- Medium
- Bloom Months:
- apr,may,jun
- Bloom Colors:
- white
- Landscaping Shrub:
- Yes
Wildlife Benefits
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★★★ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- birds, butterflies, small mammals
- Deer Resistant:
- Yes
- Fragrant:
- Yes
- Fall Color:
- red, orange
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Can resprout from the root crown following fire; typically found in fire-prone woodland edges and savannas.
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 habitats near water bodies
Propagation & Germination
- Stratification:
- Warm then cold/moist stratification (double dormancy) — 120–180 days
- Scarification:
- Seed coat scarification required before sowing
- Germination Time:
- 365–730 days
- Notes:
- Hawthorn seeds exhibit deep double dormancy requiring warm then cold stratification; germination may take 1-2 years. Scarification of hard seed coat improves germination rates.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 60 days.
Source: Claude AI