Cucumberleaf Sunflower (Debilis)

The Cucumberleaf Sunflower (Debilis) 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 and summer . The Cucumberleaf Sunflower (Debilis) has green foliage and inconspicuous yellow flowers, with a smattering 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 Cucumberleaf Sunflower (Debilis) has a moderate life span relative to most other plant species and a slow growth rate.

The Cucumberleaf Sunflower (Debilis) is not commonly available from nurseries, garden stores and other plant dealers and distributors. 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 22°F. has medium tolerance to drought and restricted water conditions.

Plant Basics
Category
Growth Rate Slow
General Type Forb/herb
Growth Period Spring, Summer
Growth Duration Annual, Perennial
Lifespan Moderate
Plant Nativity Native to U.S.
Commercial Availability No Known Source
Physical Characteristics
Bloom Period Summer
Displays Fall Colors Yes
Shape/Growth Form Stoloniferous
Drought Tolerance Medium
Shade Tolerance Intolerant
Height When Mature 0.5
Vegetative Spread Rapid
Flower Color Yellow
Flower Conspicuousness Yes
Fruit/Seed Abundance Low
Fruit/Seed Seasonality Summer Fall
Seed Spread Rate Slow
Gardening Characteristics
Propagations (Ways to Grow) Seed, Sprigs
Moisture Requirements Medium
Cold Stratification Required No
Minimum Temperature 22
Soil Depth for Roots 14
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 5.2–7.2 pH
Precipitation Range 35–35 inches/yr
Planting Density 11000–18000 indiv./acre
Soil Textures Coarse, Medium
Soil Depth for Roots 14
Minimum Frost-Free Days 300 day(s)
Salinity Tolerance Medium
CaCO3 Tolerance High
Sustainability & Use
Leaf Retention No
Palatability Low
Fire Resistant Yes
Causes Livestock Bloating None

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