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Spacing: 4-6 ft. (1.2-1.8 m) 6-8 ft. (1.8-2.4 m) 8-10 ft. (2.4-3 m)
Hardiness: USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F)
Sun Exposure: Full Sun
Danger: Plant has spines or sharp edges; use extreme caution when handling
Bloom Color: White/Near White
Bloom Time: Late Winter/Early Spring
Foliage: Evergreen
Other details: Drought-tolerant; suitable for xeriscaping
Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Propagation Methods: By dividing rhizomes, tubers, corms or bulbs (including offsets) From seed; winter sow in vented containers, coldframe or unheated greenhouse From seed; sow indoors before last frost
Seed Collecting: Allow pods to dry on plant; break open to collect seeds
On Mar 8, 2008, peachespickett from Huntington, AR wrote:
Spent a lot of time with the Joshua Trees living outside Death Valley in Nevada for some years. Now I have one growing in one of my xeriscape beds here in Arkansas and it's actually surviving, wet and cold haven't bothered it, though it is planted in a 50/50 gravel/sand mix on a southwest wall. Grew from seed years ago, now about a foot tall. You can grow almost anything from the desert anywhere, provided it's hardy enough, you give it amazing drainage and plenty of sun. Also have sagebrush, pinyons, and a hundred other things that don't grow naturally within a thousand miles of here.
The Joshua tree is a large, erect, evergreen, arborescent monocot. It is usually single-stemmed, but trees with two or three stems will sometimes occur. The Joshua tree is the largest nonriparian plant of the Mojave desert, they can reach heights of 16 to 49 feet, and the trunks can grow 2 to 4 feet in diameter. Erratic branching will generally begin at 3 to 10 feet above the ground. Flowering of the Joshua tree requires a year with sufficient precipitation, if enough precipitation occurs they will generally begin to bloom in early spring with 18 inch clusters of 1.5 inch yellowish, bell-shaped flowers. This species grows from southern California, Mexico, and western Arizona eastward into southern Nevada and southwestern Utah.
Regional...
This plant has been said to grow in the following regions:
Phoenix, Arizona Scottsdale, Arizona El Cajon, California San Diego, California Victorville, California Salineno, Texas
One vendor has this plant for sale.
