Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Fagaceae

Genus:

Quercus

Species:

Quercus × substellata

USDA Symbol:

QUSU3

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Tree

Height:

1500 cm

Light Requirements:

Full Sun

Drought Tolerance:

Medium

Bloom Months:

apr,may

Keystone Species Ranking

Caterpillar Keystone:

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

Garden & Ecology Notes

Wildlife Value:

birds, small mammals, deer

Fall Color:

brown, yellow

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

As with most oaks, resprouts vigorously from the root crown following fire. Thick bark provides fire resistance at maturity.

Soil Requirements

Soil Type:

well-drained, sandy loam soil

pH:

5.5 - 7.0 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

native to regions with periodic droughts

Propagation & Germination

Stratification:

Cold/moist stratification required — 60–90 days

Germination Time:

30–60 days

Notes:

Acorns should be planted fresh in fall or cold stratified over winter. Loses viability quickly if allowed to dry out.

The above propagation data sourced from Claude AI