Spiraea

Spiraea prunifolia

Rosaceae · broadleaf · introduced

Quick Facts

Height

7 ft

Spread

8 ft

Growth Rate

Fast

Light

Full Sun

Soil

Adaptable

Water

High

Hardiness

Zone Zones 4b–9b

Bloom Time

March to April

Phenological Calendar

Stage	Typical Window	What to Look For
Bud break BBCH 07	Feb 15-Mar 15	Buds swelling and beginning to open; first green tissue visible
Leaf emergence BBCH 11	Mar 1-Apr 1	First leaves fully unfurled on new growth
Bloom start BBCH 61	Apr 1-Apr 30	First open flowers visible; flowers white
Bloom end / petal fall BBCH 69	Apr 15-May 15	Last petals falling; flower structures fading
Fruit/seed development BBCH 71	Jun 1-Aug 31	Fruit or seed structures forming; fruit color: brown
Leaf drop BBCH 93	Oct 15-Nov 30	Leaves yellowing and dropping; no significant fall color display
Dormancy BBCH 97	Nov 15-Feb 28	Leafless; no active growth; dormant buds set

Diseases (2)

Various fungi (Phyllosticta spp., Septoria spp., Cercospo... Leaf Spot

Podosphaera aphanis var. aphanis Powdery Mildew

Pests (3)

Cinara occidentalis, Cinara abietis Aphid

Snapdragon plume moth

Tetranychidae Spider mite

Cultivars (1)

Plena

Common name: Bridalwreath Spirea; Mature height: 4–9 ft