Virginia Threeseed Mercury (Virginica)

The Virginia Threeseed Mercury (Virginica) is generally described as an annual forb/herb. This is native to the U.S. (United States) has its most active growth period in the spring and summer and fall . The Virginia Threeseed Mercury (Virginica) has green foliage and inconspicuous red flowers, with an abuncance of conspicuous red fruits or seeds. The greatest bloom is usually observed in the early summer, with fruit and seed production starting in the summer and continuing until fall. Leaves are not retained year to year. The Virginia Threeseed Mercury (Virginica) has a short life span relative to most other plant species and a rapid growth rate. At maturity, the typical Virginia Threeseed Mercury (Virginica) will reach up to 3 feet high, with a maximum height at 20 years of 0 inches.

The Virginia Threeseed Mercury (Virginica) is not commonly available from nurseries, garden stores and other plant dealers and distributors. It can be propagated by bare root, container, cuttings, seed. It has a slow 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 33°F. has medium tolerance to drought and restricted water conditions.

Plant Basics
Growth Rate Rapid
General Type Forb/herb
Growth Period Spring, Summer, Fall
Growth Duration Annual
Lifespan Short
Plant Nativity Native to U.S.
Commercial Availability No Known Source
Physical Characteristics
Bloom Period Early Summer
Displays Fall Colors Yes
Shape/Growth Form Single Crown
Drought Tolerance Medium
Shade Tolerance Intermediate
Height When Mature 3
Vegetative Spread None
Flower Color Red
Flower Conspicuousness Yes
Fruit/Seed Abundance High
Fruit/Seed Seasonality Summer Fall
Seed Spread Rate Slow
Gardening Characteristics
Propagations (Ways to Grow) Bare Root, Container, Cuttings, Seed
Moisture Requirements Medium
Cold Stratification Required No
Minimum Temperature 33
Soil Depth for Roots 6
Toxic to Nearby Plants No
Toxic to Livestock No
After-Harvest Regrowth Rate Slow
After-Harvest Resprout Ability No
Responds to Coppicing No
Growth Requirements
pH Range 5.9–7 pH
Precipitation Range 13–13 inches/yr
Planting Density 1100–4800 indiv./acre
Soil Textures Medium
Soil Depth for Roots 6
Minimum Frost-Free Days 80 day(s)
Salinity Tolerance None
CaCO3 Tolerance Low
Sustainability & Use
Leaf Retention No
Palatability Low
Fire Resistant No
Causes Livestock Bloating None

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