Japanese Cedar (Japonica)

The Japanese Cedar (Japonica) is generally described as a perennial tree. This is not native to the U.S. (United States) and has its most active growth period in the spring and summer . The greatest bloom is usually observed in the mid spring, with fruit and seed production starting in the summer and continuing until fall. Leaves are retained year to year. The Japanese Cedar (Japonica) has a moderate life span relative to most other plant species and a rapid growth rate. At maturity, the typical Japanese Cedar (Japonica) will reach up to 55 feet high, with a maximum height at 20 years of 35 feet.

The Japanese Cedar (Japonica) is easily found in nurseries, garden stores and other plant dealers and distributors. It can be propagated by bare root, container, cuttings, seed. It has a none 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 -8°F. has medium tolerance to drought and restricted water conditions.

Plant Basics
Growth Rate Rapid
General Type Tree
Growth Period Spring, Summer
Growth Duration Perennial
Lifespan Moderate
Plant Nativity Introduced to U.S.
Commercial Availability Routinely Available
Physical Characteristics
Bloom Period Mid Spring
Displays Fall Colors No
Shape/Growth Form Single Stem
Drought Tolerance Medium
Shade Tolerance Intolerant
Height When Mature 55
Vegetative Spread None
Flower Color Yellow
Flower Conspicuousness No
Fruit/Seed Abundance Medium
Fruit/Seed Seasonality Summer Fall
Seed Spread Rate None
Gardening Characteristics
Propagations (Ways to Grow) Bare Root, Container, Cuttings, Seed
Moisture Requirements Medium
Cold Stratification Required Yes
Minimum Temperature -8
Soil Depth for Roots 24
Toxic to Nearby Plants No
Toxic to Livestock No
After-Harvest Resprout Ability No
Responds to Coppicing No
Growth Requirements
pH Range 5.5–7 pH
Precipitation Range 36–36 inches/yr
Planting Density 700–1100 indiv./acre
Soil Textures Fine, Medium
Soil Depth for Roots 24
Minimum Frost-Free Days 180 day(s)
Salinity Tolerance None
CaCO3 Tolerance None
Sustainability & Use
Leaf Retention Yes
Fire Resistant No

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