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Description

Rio Grande Clammyweed is a native, warm season annual forb that grows to 3’ in height with showy pink flowers. Clammyweed is well adapted to most soils in south, central, and west Texas, and can be used in butterfly and pollinator gardens throughout the south. Clammyweed is not grazed by livestock or wildlife, making it a suitable reclamation species for disturbed areas where livestock cannot be excluded. Clammyweed is a highly preferred food source for mourning doves and bobwhite quail when available, and it is also one of the most attractive pollinator plants available. In one trial near Kingsville, Texas, over 50 butterfly species were documented as utilizing the species during summer. Recommended uses of Rio Grande Clammyweed include for game bird food plots, pollinator plantings, roadside beautification, and as component of wildflower, erosion control, and range and wildlife habitat restoration seed mixes.

Zapata Rio Grande Clammyweed is a composite of collections from Dimmit and Zapata counties developed by the Texas Native Seed Program and the USDA NRCS South Texas Plant Materials Center. Clammyweed is easily established from seed, and it is one of the few native plants that will often emerge and establish without rainfall if soil moisture conditions are favorable at planting. This species is naturally endemic to Texas.

Planting: Plant in early spring or late summer-early fall a a rate of 5-8 lbs. pure live seed (PLS) per acre at 1/8 to 1/4 inch deep. For dove food plots, plant 5 lbs per acre by July 1 for September maturity. Plants will continue to produce seed until frost with adequate moisture if left standing.

For more information:

Zapata Rio Grande Clammyweed Brochure from USDA NRCS

Zapata Rio Grande Clammyweed Brochure from Texas Native Seeds Program