Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Oleaceae

Genus:

Forsythia

Species:

Forsythia ×intermedia

USDA Symbol:

FOIN3

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Shrub

Height:

300 cm

Light Requirements:

Full Sun

Drought Tolerance:

Medium

Bloom Months:

mar,apr

Bloom Colors:

yellow

Landscaping Shrub:

Yes

Garden & Ecology Notes

Wildlife Value:

birds

Deer Resistant:

Yes

Fall Color:

yellow

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Resprouts vigorously from the base after cutting or fire damage.

Soil Requirements

Soil Type:

rich, well-drained loamy soil

pH:

5.5 - 7.5 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

native hybrid, prefers temperate regions

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–30 days

Notes:

Seeds germinate best with cold stratification; cultivars are typically propagated vegetatively.

The above propagation data sourced from Claude AI