hybrid oak
Quercus ×introgressa
- Native to:
- United States
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Fagaceae
- Genus:
- Quercus
- Species:
- Quercus ×introgressa
- USDA Symbol:
- QUIN4
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Tree
- Height:
- 3000 cm
- Light Requirements:
- Full Sun,Part Shade
- Drought Tolerance:
- Medium
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★★★ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- birds, mammals
- Fall Color:
- red, orange, brown
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Quercus ilicifolia parent is fire-adapted; hybrid may show some fire tolerance but not dependent.
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 30–90 days
- Notes:
- Seeds require cold stratification for 60-90 days; germination occurs in spring after planting.
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