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Holodiscus dumosus
Holodiscus dumosus (Nutt. ex Hook.) A. Heller
Rockspirea, Glandular Oceanspray, Bush Rockspirea, Cream Bush
Rosaceae (Rose Family)
Synonym(s): Holodiscus discolor var. dumosus, Holodiscus dumosus var. typicus
USDA Symbol: HODU
USDA Native Status: L48 (N)
Glandular oceanspray or bush rockspirea is a low, intricately branched, spreading shrub, usually 1-7 ft. tall, with reddish twigs; aromatic, deciduous foliage; and feathery panicles of small, pinkish-white flowers.
Grows in lava, pumice, and volcanic ash soils.
Plant Characteristics
Duration: PerennialHabit: Shrub
Leaf Retention: Deciduous
Fruit Type: Achene , Aggregate
Size Notes: Up to about 10 feet tall, often shorter.
Leaf: Dark Green
Fruit: Aggregated achenes.
Bloom Information
Bloom Color: White , PinkBloom Time: Jun , Jul , Aug
Distribution
USA: AZ , CO , ID , NM , NV , TX , UT , WYNative Distribution: W. TX & adjacent Mex. to AZ & s.e. CA, n. to n.w. WY, c. ID & n.c. OR
Native Habitat: Dry, rocky cliffs & hillsides
Growing Conditions
Water Use: LowLight Requirement: Part Shade
Soil Moisture: Dry
CaCO3 Tolerance: High
Soil Description: Dry, rocky soils.
Conditions Comments: Grows in lava, pumice & volcanic ash soils.
Benefit
Use Wildlife: A good wildlife browse plant.Conspicuous Flowers: yes
Propagation
Description: Semi-hardwood cuttings, suckers and seeds may be used.Seed Collection: Seeds are produced in tiny, dry capsules.
Seed Treatment: The tiny seeds require cold stratification at 41 degrees for up to 18 weeks.
Commercially Avail: yes
Web Reference
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resources
USDA: Find Holodiscus dumosus in USDA PlantsFNA: Find Holodiscus dumosus in the Flora of North America (if available)
Google: Search Google for Holodiscus dumosus
Metadata
Record Modified: 2022-10-18Research By: TWC Staff