Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Rosaceae

Genus:

Spiraea

Species:

Spiraea japonica var. japonica

USDA Symbol:

SPBU2

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Shrub

Height:

180 cm

Drought Tolerance:

Medium

Bloom Months:

jun,jul,aug

Bloom Colors:

pink, rose

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:

bronze, reddish

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Resprouts vigorously from the root crown after cutting or fire damage.

Propagation & Germination

Stratification:

None required

Germination Time:

14–30 days

Notes:

Seeds germinate readily with light and warmth; no pretreatment typically required.

The above propagation data sourced from Claude AI