Chisos Red Oak
Quercus gravesii
- Native to:
- Mexico, United States
Meghan Cassidy


Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Fagaceae
- Genus:
- Quercus
- Species:
- Quercus gravesii
- USDA Symbol:
- QUGR2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Tree
- Height:
- 1200 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- High
- Bloom Months:
- mar,apr,may
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★★★ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
- Fall Color:
- red, orange
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts vigorously from the root crown following fire, typical of Texas hill country oaks.
Soil Requirements
- Soil Type:
- rocky, well-drained limestone soils
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- prefers calcareous substrates in native range
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 14–60 days
- Notes:
- Acorns should be planted fresh in fall or cold stratified. Germination is typically reliable with fresh seed.
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 90 days.
Notes: Seeds may require light for germination.
Source: Claude AI