How to Grow and Care for Clammyweeds

Redwhisker Clammyweed (Polanisia dodecandra) is an annual herbaceous wildflower that will grow to 91 cm tall. It blooms from spring to fall with white flowers that have an orange neck and reddish-purple stamens. The foliage is hairy and has an unpleasant scent. The seeds or fruit of the plant are produced after blooming.

Large clammyweed is a small to large sticky but unscented annual herb of 10 to 60 cm. It has branched or unbranched, green or purple stems with seated glands and glandular hairs. The 0.3 to 1.5 mm long, green or purple leaf stalks are often at an angle with the leaf blade.

Mexican clammyweed is a distinctive herbaceous plant characterized by its sticky stems and clustered, white to pink flowers with a prominent reddish center. These features are often highlighted against sparse, sandy soils where mexican clammyweed thrives, using its deep taproot to access water. Its long seedpods and narrow, lance-shaped leaves adapt well to the hot, dry climates it prefers.

Slenderleaf clammyweed is a delicate, wiry-stemmed wildflower with clusters of small, white to pinkish blossoms that reveal a striking array of protruding yellow stamens. Adapted to arid environments, its narrow foliage conserves water. This unassuming beauty thrives in sandy or gravelly soils, often under the full glare of the sun, attracting pollinators with its subtle charm.