Tuesday, July 10th, 2007...12:22 pm

Vinca Issues


TheGardenLady received this question from John.

I have vinca that I planted about 25 days ago in St.Louis, Mo in a sunny location. The leaves of all 40 vinca plants have turned yellow! What is causing this? I water them daily. Do they need fertilizer? When I planted them, I mulched this bed with cypress mulch.

Vinca plants do not have a lot of problems and love hot weather. They should be planted in well drained soil. Vinca plants do not like a lot of watering. Once established vinca plants need little care beyond watering occasionally. Watering daily is too much.The plants do not want mulch which keeps the ground too moist. Read this about vincas. 
The newer varieties of vinca also need a  judicious amount of fertlizer.   Read this.

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