Catharanthus roseus (Vinca) 'Jams N Jelly Blackberry' has an extremely unique, velvety deep-purple flower color with a small white eye that will add excitment to summer gardens. This superb accent plant will work beautifully in combination with blue, pink, white or lavender. In some settings, the flower petals appear almost black, making this color a designer's delight. Easy to grow plants have excellent tolerance to drought and heat. Mature plants will reach 10-14 inches tall making them a perfect medium height divider. The 2-inch flowers of this Periwinkle are complimented by deep green shiny leaves creating a lush background for the richly dark flowers.