Bastard Oak

Quercus sinuata

Native to:
Mexico, United States

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Fagaceae
Genus:
Quercus
Species:
Quercus sinuata
USDA Symbol:
QUSI

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Tree
Height:
2500 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
mar,apr,may

Keystone Species Ranking

Caterpillar Keystone:
★★★★★ Butterfly & moth species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:
birds, squirrels, deer, small mammals
Fall Color:
yellow, brown
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from root crown following fire; adapted to periodic low-intensity burns typical of post oak savannas.

Soil Requirements

Soil Type:
fertile, well-drained loamy soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
moist to moderately dry
Notes:
Commonly found in floodplains and bottomlands

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Acorns germinate readily after cold stratification; plant fresh acorns in fall for natural stratification.

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.

Source: Claude AI