Carried by 20 nurseries
View Availability at NurseryData provided by the participants of the Consortium of California Herbaria
View additional distribution information on the Jepson eflora
Douglas's Spirea (Spiraea douglasii) is a native shrub that grows in northern California. It is moderately fast growing and long-lived. It grows in a semi-upright form to a height of 7 feet, with active growth during the spring and summer. Flowers are purple and striking, and bloom in the mid summer. Leaves are dark green and deciduous. It tends to grow at elevations from 0-6400 feet.
Shrub
5 - 7 ft Tall
3 - 4 ft Wide
Upright
Fast, Moderate
Evergreen, Winter Deciduous
Pleasant
Purple, Pink
Summer
Hedge
Partial Shade, Full Sun
Moderate
Keep moist
Easy
Tolerates cold to -10 - 0° F
Fast, Medium, Slow
Prefers sandy or loamy soils. Does not grow well in clay soils.
Soil PH: 5 - 7
For propagating by seed: 1-3 mos. stratification. Rose spirea may also be propagated by readily cuttings from softwood, semihardwood, and dormant hardwood; by layering; through rhizomes and root segments (in spring); and division.
1, 2, 4*, 5*, 6*, 7*, 8, 9, 14*, 15*, 16*, 17*, 18, 19, 20, 21, 22, 23, 24
Moist forests, creeksides or other damp areas
Red Fir Forest, Forest, Wetland-Riparian
Rose Spirea is widely tolerant of many growing conditions, but can become invasive as it spreads readily, but with under careful management can be easily controlled. Consider planting with Christmas Berry (Heteromeles arbutifolia), Blue Eyed Grass (Sisyrinchium bellum), and Brown Dogwood (Cornus glabrata).
Butterflies and moths supported
1 confirmed and 33 likely
Lorquin's Admiral
Limenitis lorquini
Adelphagrotis Indeterminata
Adelphagrotis indeterminata
Common Gray
Anavitrinella pampinaria