MacKenzie's Willow (Prolixa)

The MacKenzie's Willow (Prolixa) is generally described as a perennial tree or shrub. This is native to the U.S. (United States) has its most active growth period in the spring and summer . The MacKenzie's Willow (Prolixa) has green foliage and inconspicuous white flowers, with an abuncance of conspicuous yellow fruits or seeds. The greatest bloom is usually observed in the early spring, with fruit and seed production starting in the summer and continuing until summer. Leaves are not retained year to year. The MacKenzie's Willow (Prolixa) has a short life span relative to most other plant species and a moderate growth rate. At maturity, the typical MacKenzie's Willow (Prolixa) will reach up to 45 feet high, with a maximum height at 20 years of 68 feet.

The MacKenzie's Willow (Prolixa) is easily found in nurseries, garden stores and other plant dealers and distributors. It can be propagated by container, cuttings, seed, sprigs. It has a rapid ability to spread through seed production and the seedlings have low vigor. Note that cold stratification is not required for seed germination and the plant cannot survive exposure to temperatures below -50°F. has medium tolerance to drought and restricted water conditions.

Plant Basics
Category
Growth Rate Moderate
General Type Tree, Shrub
Growth Period Spring, Summer
Growth Duration Perennial
Lifespan Short
Plant Nativity Native to U.S.
Commercial Availability Routinely Available
Physical Characteristics
Bloom Period Early Spring
Displays Fall Colors No
Shape/Growth Form Single Crown
Drought Tolerance Medium
Shade Tolerance Intolerant
Height When Mature 45
Vegetative Spread Slow
Flower Color White
Flower Conspicuousness Yes
Fruit/Seed Abundance High
Fruit/Seed Seasonality Summer Summer
Seed Spread Rate Rapid
Gardening Characteristics
Propagations (Ways to Grow) Container, Cuttings, Seed, Sprigs
Moisture Requirements Low
Cold Stratification Required Yes
Minimum Temperature -50
Soil Depth for Roots 36
Toxic to Nearby Plants No
Toxic to Livestock No
After-Harvest Regrowth Rate None
After-Harvest Resprout Ability Yes
Responds to Coppicing Yes
Growth Requirements
pH Range 5–7 pH
Precipitation Range 16–16 inches/yr
Planting Density 320–1200 indiv./acre
Soil Textures Coarse
Soil Depth for Roots 36
Minimum Frost-Free Days 49 day(s)
Salinity Tolerance None
CaCO3 Tolerance Medium
Sustainability & Use
Leaf Retention No
Palatability Low
Fire Resistant Yes
Causes Livestock Bloating None

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