Vinca Plant Care. Vinca Plants (Catharanthus roseus) Is a colorful plant that can tolerate heat. Commonly known as Madagascar periwinkle. They come in bright red, white, pink and purple and they thrive in full sun providing you water them every other day or so. Thick glossy leaves that repel insects.
Do not get them confused with the trailing or vinca minor plants. AKA the periwinkle vine with a blue or violet flower. You can see it on this page Ground Cover Plants.
How to keep Vinca Flowering?
Fertilize them often about once every 2 weeks or so. A good all-purpose fertilizer with an analysis of 20-20-20 will work. It’s important that the soil drains well.
Vinca Plant Care
They will also do great in containers. You can also plant them in the ground but in and around the southwest it is considered an annual. They will grow up to 8″ in height and will spread about 2-4″ wide.
They are considered a nuisance plant in tropical areas but around the southwest, this will not become a problem.
Where to plant Annual Vinca?
Plant them in rock gardens, or in pots in front of your home and they don’t mind full sun, they will also do well in morning sun and afternoon shade.
Purple Vinca for the Garden
Problems with Vinca?
It is susceptible to root-rot so be extra sure your containers or soil drains well. Water in the morning to help with fungus problems. The thick leaves will help keep insects away but aphids and mites will attack this plant. Spray with an insecticide spray at the first sign of these pests. More information here on how to get rid of these insects. Vinca is deer and rabbit resistant.
Learn more about this plant over at Wikipedia.