Nettleleaf Giant Hyssop (Urticifolia)

The Nettleleaf Giant Hyssop (Urticifolia) is generally described as a perennial subshrub or forb/herb. This is native to the U.S. (United States) has its most active growth period in the spring and summer . The Nettleleaf Giant Hyssop (Urticifolia) has dark green foliage and inconspicuous red flowers, with a smattering of conspicuous green 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 summer. Leaves are not retained year to year. The Nettleleaf Giant Hyssop (Urticifolia) has a long life span relative to most other plant species and a rapid growth rate. At maturity, the typical Nettleleaf Giant Hyssop (Urticifolia) will reach up to 5 feet high, with a maximum height at 20 years of 0 inches.

The Nettleleaf Giant Hyssop (Urticifolia) is usually not commercially available except under contract. It can be propagated by seed, sprigs. It has a slow 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 -33°F. has low tolerance to drought and restricted water conditions.

Plant Basics
Category
Growth Rate Rapid
General Type Subshrub, Forb/herb
Growth Period Spring, Summer
Growth Duration Perennial
Lifespan Long
Plant Nativity Native to U.S.
Commercial Availability Contracting Only
Physical Characteristics
Bloom Period Late Spring
Displays Fall Colors No
Shape/Growth Form Rhizomatous
Drought Tolerance Low
Shade Tolerance Intermediate
Height When Mature 5
Vegetative Spread Slow
Flower Color Red
Flower Conspicuousness Yes
Fruit/Seed Abundance Low
Fruit/Seed Seasonality Summer Summer
Seed Spread Rate Slow
Gardening Characteristics
Propagations (Ways to Grow) Seed, Sprigs
Moisture Requirements Medium
Cold Stratification Required No
Minimum Temperature -33
Soil Depth for Roots 12
Toxic to Nearby Plants No
Toxic to Livestock No
After-Harvest Regrowth Rate Moderate
After-Harvest Resprout Ability No
Responds to Coppicing No
Growth Requirements
pH Range 6–8 pH
Precipitation Range 18–18 inches/yr
Planting Density 2700–4800 indiv./acre
Soil Textures Coarse, Fine, Medium
Soil Depth for Roots 12
Minimum Frost-Free Days 120 day(s)
Salinity Tolerance Low
CaCO3 Tolerance Medium
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