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The Forest Service National Center for Reforestation, Nurseries, and Genetic Resources (RNGR) is a leading source of technical information for nurseries and land managers regarding production and planting of trees and other native plants for reforestation, restoration, and conservation.

 
NPN Protocol Details Image

Ambrosia (dumosa)

Madena Asbell
Nursery & Seed Bank Manager
Mojave Desert Land Trust
P.O. Box 1544
JOSHUA TREE, California 92252
760-366-1544
madena@mojavedesertlandtrust.org
www.mojavedesertlandtrust.org

Family Scientific Name: Asteraceae
Family Common Name: Aster Family
Scientific Name: Ambrosia dumosa (A. Gray) Payne
Common Name: Burrobush, White Bursage
Species Code: AMBDUM
Ecotype: Joshua Tree, CA
General Distribution: Found in creosote bush scrub community throughout the Mojave and Sonoran deserts of CA, Nevada, Utah, Arizona and northern Baja California.
Propagation Goal: Plants
Propagation Method: Seed
ProductType: Container (plug)
Stock Type: 4"x 10" Anderson plant bands
Time To Grow: 6 months
Propagule Collection: Seed was hand collected in May of previous year.
Propagule Processing: Seeds are dried in paper bags and cleaned to remove male flowers and weed seeds. Seed is stored in air tight containers at 3 degrees C.
Pre-Planting Treatments: Seeds were not treated prior to sowing. Seeds were sown directly into 17" x 17" x 2" seed flats with a media consisting of 3 parts coarse horticultural perlite, 1 part coarse vermiculite, and a small amount of Osmocote 14-14-14. Seeds were sown at a depth of approximately 1/4 inch. Flats were hand watered. There was 37% germination.
Growing Area Preparation/
Annual Practices for Perennial Crops:
Seeds were started in a greenhouse in April. Greenhouse temperatures did not exceed 90F (high) and 50F (low). Maximum germination was reached within 3 weeks. At 6 weeks, seedlings were pricked out and transplanted directly into 4x10 Anderson plant bands and moved outdoors into a shade house with 63% shade cover. Containers were hand watered.

Citation:

Asbell, Madena. 2017. Propagation protocol for production of Container (plug) Ambrosia dumosa (A. Gray) Payne Plants 4"x 10" Anderson plant bands; Mojave Desert Land Trust JOSHUA TREE, California. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/07/01). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.