Butterweed (Glabella)

The Butterweed (Glabella) 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 . The Butterweed (Glabella) has green foliage and inconspicuous yellow flowers, with a moderate amount of conspicuous brown fruits or seeds. The greatest bloom is usually observed in the spring, with fruit and seed production starting in the spring and continuing until spring. Leaves are not retained year to year. The Butterweed (Glabella) has a moderate life span relative to most other plant species and a moderate growth rate. At maturity, the typical Butterweed (Glabella) will reach up to 3.2 feet high, with a maximum height at 20 years of 0 inches.

The Butterweed (Glabella) is not commonly available from nurseries, garden stores and other plant dealers and distributors. It can be propagated by 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 32°F. has medium tolerance to drought and restricted water conditions.

Plant Basics
Category
Growth Rate Moderate
General Type Forb/herb
Growth Period Spring
Growth Duration Annual
Lifespan Moderate
Plant Nativity Native to U.S.
Commercial Availability No Known Source
Physical Characteristics
Bloom Period Spring
Displays Fall Colors No
Shape/Growth Form Bunch
Drought Tolerance Medium
Shade Tolerance Intolerant
Height When Mature 3.2
Vegetative Spread None
Flower Color Yellow
Flower Conspicuousness Yes
Fruit/Seed Abundance Medium
Fruit/Seed Seasonality Spring Spring
Seed Spread Rate Moderate
Gardening Characteristics
Propagations (Ways to Grow) Container, Seed
Moisture Requirements High
Cold Stratification Required No
Minimum Temperature 32
Soil Depth for Roots 14
Toxic to Nearby Plants No
Toxic to Livestock No
After-Harvest Regrowth Rate None
After-Harvest Resprout Ability No
Responds to Coppicing No
Growth Requirements
pH Range 4–7.5 pH
Precipitation Range 30–30 inches/yr
Planting Density 1200–1700 indiv./acre
Soil Textures Coarse, Fine
Soil Depth for Roots 14
Minimum Frost-Free Days 160 day(s)
Salinity Tolerance None
CaCO3 Tolerance High
Sustainability & Use
Leaf Retention No
Palatability Medium
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