Havard Oak
Quercus havardii
- Native to:
- United States
bobnieman
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Fagaceae
- Genus:
- Quercus
- Species:
- Quercus havardii
- USDA Symbol:
- QUHA3
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Shrub , Tree
- Height:
- 200 cm
- Light Requirements:
- Full Sun,Part Shade
- Drought Tolerance:
- High
Wildlife Benefits
- 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
Buck Moth (Hemileuca maia), Grote's buck moth (Hemileuca grotei), Slosser's buckmoth (Hemileuca slosseri)
Reported Fauna Sightings
Moths:Slosser's buckmoth (Hemileuca slosseri)
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals, insects
- Fall Color:
- yellow, brown
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts vigorously from rhizomes after fire; fire can help maintain open habitat.
Soil Requirements
- Soil Type:
- sandy, nutrient-poor, well-drained soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- Commonly found in sandy dunes and plains
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 30–90 days
- Notes:
- Seeds require cold stratification for 30-60 days to break dormancy; sow in fall or after stratification.
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 90 days.
Source: Claude AI