Chisos Red Oak

Quercus gravesii

Native to:
Mexico, United States

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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