It seems like every garden has a tricky dark corner where no grass will grow and perennials fizzle out. Enter periwinkle: This vigorous groundcover can easily tackle cover almost any space, blanketing ...

Periwinkle blight (aerial phytophthora) is caused by the fungus Phytophthora parasitica. It’s the number one disease problem for annual vinca or periwinkle (Catharanthus roseus) and can persist in the ...

Look around town. You see it everywhere — dying beds of brightly colored periwinkles. What gives? It’s actually a fungal disease and that has been a problem since I first started my career in ...

Dear Neil: It looks like my periwinkles are coming back from their roots. Is there any problem with letting that happen? You’re probably seeing seedlings, not sprouts from last year’s roots.

Cora vinca has taken the gardening world by storm and put the joy back into periwinkles. It's not just the Cora but also the Cora Cascade, too. Today there are 10 colors and a mix in the Cora vinca ...

No green thumbs are required to grow vinca vine. Variegated vinca goes by many names. Known as bigleaf periwinkle (Vinca major 'Variegata'), it's a variegated form of V. major, or greater periwinkle.