Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Rosaceae

Genus:

Spiraea

Species:

Spiraea stevenii

USDA Symbol:

SPST3

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Shrub

Height:

100 cm

Light Requirements:

Part Shade

Drought Tolerance:

Medium

Bloom Months:

jun,jul

Bloom Colors:

white, pink

Landscaping Shrub:

Yes

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Keystone Species Ranking

Caterpillar Keystone:

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

Garden & Ecology Notes

Wildlife Value:

bees, butterflies

Deer Resistant:

Yes

Fall Color:

yellow, orange

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Resprouts from root crown following fire; typical of Spiraea genus.

Soil Requirements

Soil Type:

well-drained, fertile loamy soil

pH:

5.5 - 7.0 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

moderate moisture

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–30 days

Notes:

Seeds are very small and require light for germination; surface sow.

The above propagation data sourced from Claude AI