Suggests using periwinkle to treat ailments ranging from asthma to diabetes to toothaches. Lists habitats and warns against excessive use.

Capsule descriptions and photos spotlight periwinkle varieties found in France. Lists botanical family, bloom times and habitat.

Learn how to plant and care for the flowering annual. See plant varieties and common diseases.

Discover periwinkle's European roots, its use as ground cover, the look of its flowers and foliage, and its many varieties. Includes growth tips.