Growing Periwinkle in Central Texas
Anyone who has planted Periwinkle, or Annual Vinca, in the spring in Central Texas will tell you “that plant always dies when I plant it”. Well, there is a reason for that! Periwinkle, especially in the “old” days, before resistant varieties were available, was never grown until the cool wet weather of spring was behind us. It absolutely thrives in the scorching hot summers, but give it rain and cool weather, and disease takes over! Phytophthora fungus is the causal organism for [...]