File:Kaktus-drzewiasty.jpg Foliage detail of Yucca brevifolia, along US 93, southwestern Yavapai County, Arizona.
Seed Pods
Yucca brevifolia Yucca brevifolia Yucca brevifolia
Common Name Joshua tree
Latin Name Yucca brevifolia
Family Agavaceae
Sunset zones / USDA zones 8-24 / 7-10
Type / Form Tree / Medium
Native Habitat Mojave Desert between 2,000 and 6,000 feet
Soil Dry, decomposed granite, clay loam, well drained
Exposure Full sun
Water None to once per month depending on soil
Height X Width Maximum 32 X 34 feet, usual 15 feet X 8 feet
Protective Mechanism Spines
Leaves Evergreen, stiff and dagger-like, numerous at the ends of branches, 6 to 12 inches long, sharp pointed tip, edges fine toothed, blue green
Flowers Bell-shaped, 1 1/2 inch long, creamy yellow-green, occur at the ends of branches in upright 1 to 1 1/2 foot long clusters, appearing in spring
Bark / Roots Light brown, initially covered with brown dead leaves, later irregularly scaly ridged and furrowed / Not substantial
Maintenance None
Propagation Seeds
Pests and Diseases None
Landscape uses Rock garden, low maintenance, specimen
Garden Suitability Songbird, Butterfly, Ethnobotanical
Ornamental Value White to cream colored flowers in March followed by attractive fruits
Nature Value Nesting for songbirds, doves, lizards, dead trunk house woodpeckers and flickers, larval plant butterflies and yucca moths
Native American Uses Immature pods and fruits used for food, roots used for dye and in basketry
Links  
    Article http://www.desertusa.com/jtree/josh_month.html
    Images and data http://www.desert-tropicals.com/Plants/Agavaceae/Yucca_brevifolia.html
    Images and data http://davesgarden.com/pf/go/123/index.html
    Images and data http://www.cnr.vt.edu/DENDRO/dendrology/Syllabus2/factsheet.cfm?ID=589
    Images and data http://en.wikipedia.org/wiki/Yucca_brevifolia
    Images and data http://www.fs.fed.us/database/feis/plants/tree/yucbre/all.html
    Images and data http://www.delange.org/JoshuaTree/JoshuaTree.htm
    Images and data http://hegel.lewiscenter.org/users/mhuffine/projects/sci_pdf/josh_tree_bio%5B1%5D.prn.pdf
    Images and data http://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=8375
    Images and data http://www.wildflower.org/plants/result.php?id_plant=YUBR
    Images and data http://www.nazflora.org/Yucca_brevifolia.htm
    Distribution map http://esp.cr.usgs.gov/data/atlas/little/yuccbrev.pdf
    Distribution map http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=220014441
    Nursery, images, and data http://www.laspilitas.com/nature-of-california/plants/yucca-brevifolia
    Nursery, images, and data http://www.cnplx.info/nplx/species?taxon=Yucca+brevifolia
    Nursery Oak Hills Nursery, 13874 Ranchero Road, Oak Hills, 92345, 760-947-6261
Note: Difficult to transplant.  Best success from seeds or one gallon size.
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