Western Azalea (Occidentale)

The Western Azalea (Occidentale) is generally described as a perennial shrub. This is native to the U.S. (United States) has its most active growth period in the spring and summer . The Western Azalea (Occidentale) has green foliage and inconspicuous white flowers, with an abuncance of conspicuous black fruits or seeds. The greatest bloom is usually observed in the late spring, with fruit and seed production starting in the summer and continuing until fall. Leaves are not retained year to year. The Western Azalea (Occidentale) has a moderate life span relative to most other plant species and a moderate growth rate. At maturity, the typical Western Azalea (Occidentale) will reach up to 10 feet high, with a maximum height at 20 years of 2 feet.

The Western Azalea (Occidentale) is usually not commercially available except under contract. It can be propagated by bare root, container, cuttings, seed. It has a rapid ability to spread through seed production and the seedlings have medium vigor. Note that cold stratification is not required for seed germination and the plant cannot survive exposure to temperatures below 13°F. has none tolerance to drought and restricted water conditions.

Plant Basics
Category
Growth Rate Moderate
General Type Shrub
Growth Period Spring, Summer
Growth Duration Perennial
Lifespan Moderate
Plant Nativity Native to U.S.
Commercial Availability Contracting Only
Physical Characteristics
Bloom Period Late Spring
Displays Fall Colors Yes
Shape/Growth Form Multiple Stem
Drought Tolerance None
Shade Tolerance Intermediate
Height When Mature 10
Vegetative Spread None
Flower Color White
Flower Conspicuousness Yes
Fruit/Seed Abundance High
Fruit/Seed Seasonality Summer Fall
Seed Spread Rate Rapid
Gardening Characteristics
Propagations (Ways to Grow) Bare Root, Container, Cuttings, Seed
Moisture Requirements High
Cold Stratification Required No
Minimum Temperature 13
Soil Depth for Roots 12
Toxic to Nearby Plants No
Toxic to Livestock No
After-Harvest Resprout Ability Yes
Responds to Coppicing No
Growth Requirements
pH Range 4.5–6.5 pH
Precipitation Range 55–55 inches/yr
Planting Density 600–1200 indiv./acre
Soil Textures Coarse, Medium
Soil Depth for Roots 12
Minimum Frost-Free Days 270 day(s)
Salinity Tolerance None
CaCO3 Tolerance None
Sustainability & Use
Leaf Retention No
Palatability Low
Fire Resistant No
Causes Livestock Bloating None

Source: USDA, NRCS, PLANTS Database, plants.usda.gov.
National Plant Data Center, Baton Rouge, LA 70874-4490 USA