Cedar Elm
Ulmus crassifolia
- Native to:
- Mexico, United States
Krzysztof Ziarnek, Kenraiz





Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Ulmaceae
- Genus:
- Ulmus
- Species:
- Ulmus crassifolia
- USDA Symbol:
- ULCR
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Tree
- Height:
- 2400 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- High
- Bloom Months:
- mar,apr
- Bloom Colors:
- green
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (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
Puss caterpillar (Megalopyge opercularis)
Reported Fauna Sightings
Hummingbirds: Black-chinned Hummingbird (Archilochus alexandri) Moths:Double-lined Prominent (Lochmaeus bilineata), Polyphemus moth (Antheraea polyphemus) Butterflies:Hackberry Emperor (Asterocampa celtis), Question Mark (Polygonia interrogationis)
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
- Fall Color:
- yellow
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts vigorously from the root crown following fire or cutting. Commonly found in fire-adapted savanna and woodland ecosystems.
Soil Requirements
- Soil Type:
- fertile, well-drained loamy soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- dry to moderate
- Notes:
- Commonly found in limestone-rich soils
Propagation & Germination
- Stratification:
- None required
- Germination Time:
- 7–21 days
- Notes:
- Seeds are short-lived and should be sown fresh immediately after collection in late summer. No pretreatment required.
The above propagation data sourced from Claude AI
Pre-treatment: Seeds are cold stratified for 60 to 90 days
Source: npn.rngr.net