Locations of High Desert Raywood Ash: https://drive.google.com/open?id=15t4FXPZQRVe0tyQeVDeBFmgyA9aiy2CM&usp=sharing
Sunset Zones: 2-9 and 14-24
USDA Hardiness Zones: 5-8
Sun Exposure: Full Sun to Partial Shade
Soil: Highly Acidic to Highly Alkaline
Drought Tolerance: Not Drought Tolerant*
Growth Rate: 24” per year
Growth Habit: Oval or Rounded Shape
Evergreen or Deciduous: Deciduous
Longevity: 50 to 150 Years
Litter Issue: None
Pests and Diseases: Resistant to Armillaria. Susceptible to Beetle Borers, Scales and White Fly, Root Rot, Sooty Mold and Verticillium.
Branch Strength: Medium
Root Damage Potential: Moderate
Suckering Potential: High
Special Care: These trees were previously thought to be drought tolerant, but evidence suggests that lack of watering leads to branch dieback: https://napavalleyregister.com/lifestyles/raywood-ash-gets-bad-rap/article_7b2c5fc1-1a39-5955-bbe4-fd5ea3002593.html
Watering Advice: Regular watering until establishment, then less frequency deep waterings.
Staking: These trees typically do not require substantial staking even here in the High Desert.
Fertilizer: Fertilizing in early spring will help develop a strong tree early on in its life.