Oriental Bittersweet (Orbiculatus)

The Oriental Bittersweet (Orbiculatus) is generally described as a perennial vine. 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 spring, with fruit and seed production starting in the summer and continuing until fall. Leaves are not retained year to year. The Oriental Bittersweet (Orbiculatus) has a moderate life span relative to most other plant species and a rapid growth rate. At maturity, the typical Oriental Bittersweet (Orbiculatus) will reach up to 2 feet high, with a maximum height at 20 years of 2 feet.

The Oriental Bittersweet (Orbiculatus) is easily found in nurseries, garden stores and other plant dealers and distributors. It can be propagated by bare root, container, seed. It has a moderate 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 -38°F. has medium tolerance to drought and restricted water conditions.

Plant Basics
Growth Rate Rapid
General Type Vine
Growth Period Spring, Summer
Growth Duration Perennial
Lifespan Moderate
Plant Nativity Introduced to U.S.
Commercial Availability Routinely Available
Physical Characteristics
Bloom Period Spring
Displays Fall Colors Yes
Shape/Growth Form Thicket Forming
Drought Tolerance Medium
Shade Tolerance Tolerant
Height When Mature 2
Vegetative Spread Rapid
Flower Color White
Flower Conspicuousness No
Fruit/Seed Abundance High
Fruit/Seed Seasonality Summer Fall
Seed Spread Rate Moderate
Gardening Characteristics
Propagations (Ways to Grow) Bare Root, Container, Seed
Moisture Requirements High
Cold Stratification Required Yes
Minimum Temperature -38
Soil Depth for Roots 18
Toxic to Nearby Plants No
Toxic to Livestock No
After-Harvest Resprout Ability No
Responds to Coppicing No
Growth Requirements
pH Range 5–7.5 pH
Precipitation Range 30–30 inches/yr
Planting Density 1200–4800 indiv./acre
Soil Textures Coarse, Fine, Medium
Soil Depth for Roots 18
Minimum Frost-Free Days 100 day(s)
Salinity Tolerance None
CaCO3 Tolerance Medium
Sustainability & Use
Leaf Retention No
Palatability Low
Fire Resistant No

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