Spiraea splendens
Common Name(s):
Rose Meadowsweet
Subalpine Spiraea
Synonym:
Spirea densiflora
Mountain Spiraea
Flower:
Pink
Blooms :
Jun
to:
Jul
Fuzzy 5 petaled pom-poms of bright rosy pink, in flat-topped, terminal clusters
Botanical Description
Fragrant?
YES
Family:
Rosaceae
Small Shrub (usually < 1.5' and not >3')
Foliage:
Green
Alternate, simple, ovoid, 1?5 cm long, margin toothed near tip and sides but not at the base, leaf surface thin, light green, with or without hairs, turn yellow in fall
Fall Color?
YES
Yellow foliage
Deciduous
Photo by:
Heading 6
Oregon Native?
YES
West State Native?
YES
Origins:
Mountains from British Columbia NW and Sierran California, east to Montana.
Site Selection
Minimum USDA Hardiness Zone:
3
Water Needs:
L
Sun Needs:
Shade
Deer Resistant?
YES
Firewise?
YES
Height:
1.5-3'
Spread:
1.5-3'
Growth Rate:
Medium
Native Habitat:
Wet, open meadows; wooded or open, rocky slopes; stream banks; 2000-11,000 ft elevation
Soil:
Tolerates a variety of soils but prefers rocky soil with fast drainage
Care Recommendations
Maintenance Level:
Medium
Fertilizer:
Annaul lught feeding with a balanced slow-release granular formulation 10-10-10 or a tree/shrub blend in spring
Mulch:
Shredded bark, compost or fallen leaves
Regular watering, well-drained moist retaining soil, 2-3" layer of mulch, prune late winter or early spring, fertilize once a year with a 10-10-10 fertilizer, monitor for pests
Long Term:
Winter:
Flowers on new wood, so prune in late winter to early spring if needed
Spring:
Flowers mostly in sprays along one-year-old or two-year-old branches. Cut off spent flowering branches immediately after flowering. This will help to produce the maximum amount of vigorous flowering wood.
Summer:
Prune diseased, dead, damaged branches; deadhead, regular watering, mulch
Fall:
Reduce watering, light pruning to shape, fresh mulch
General Care Comments:
Keep permanently moist soil, full sun, good drainage, pruning late winter or ealry spring, mulch
Common Problems
Over saturated soils, over fertilization
Diseases:
Spiraea powdery mildew, fireblight
Insects:
Aphid, Snapdragon Plume Moth, spider mites, leaffollers, leafhsppers, scale
Environmental Problems:
Improper watering, high humidity, intense heat
Pests:
I'm a paragraph. Click here to add your own text and edit me. It's easy.