Purplehead Sneezeweed (Flexuosum)

The Purplehead Sneezeweed (Flexuosum) is generally described as a perennial forb/herb. This is native to the U.S. (United States) has its most active growth period in the spring . The Purplehead Sneezeweed (Flexuosum) has green foliage and inconspicuous yellow flowers, with an abuncance of conspicuous brown fruits or seeds. The greatest bloom is usually observed in the summer, with fruit and seed production starting in the summer and continuing until fall. Leaves are not retained year to year. The Purplehead Sneezeweed (Flexuosum) has a short life span relative to most other plant species and a moderate growth rate. At maturity, the typical Purplehead Sneezeweed (Flexuosum) will reach up to 3.2 feet high, with a maximum height at 20 years of 0 inches.

The Purplehead Sneezeweed (Flexuosum) is easily found in nurseries, garden stores and other plant dealers and distributors. It can be propagated by bare root, seed. It has a moderate ability to spread through seed production and the seedlings have high vigor. Note that cold stratification is not required for seed germination and the plant cannot survive exposure to temperatures below -28°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 Perennial
Lifespan Short
Plant Nativity Native to U.S.
Commercial Availability Routinely Available
Physical Characteristics
Bloom Period Summer
Displays Fall Colors No
Shape/Growth Form Multiple Stem
Drought Tolerance Medium
Shade Tolerance Intolerant
Height When Mature 3.2
Vegetative Spread None
Flower Color Yellow
Flower Conspicuousness Yes
Fruit/Seed Abundance High
Fruit/Seed Seasonality Summer Fall
Seed Spread Rate Moderate
Gardening Characteristics
Propagations (Ways to Grow) Bare Root, Seed
Moisture Requirements Low
Cold Stratification Required No
Minimum Temperature -28
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 4.5–7.5 pH
Precipitation Range 20–20 inches/yr
Planting Density 3450–10912 indiv./acre
Soil Textures Coarse, Fine, Medium
Soil Depth for Roots 6
Minimum Frost-Free Days 140 day(s)
Salinity Tolerance None
CaCO3 Tolerance Low
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