98-105 Days to maturity. Catharanthus roseus ’Mediterranean XP Series’. Mediterranean XP Series Vinca Seeds. Non-GMO, open-pollinated, annual. Premium Quality Seeds. Mediterranean XP vinca seeds grow one of summer's most exciting bedding, trailing, and hanging plants. This variety was specially selected for its dense growth and trailing habit that makes it perfect for hanging baskets in regions with hot summers. Mediterranean XP seeds promise your home or garden elegant bicolored vincas with sharp, contrasting petals of either white, strawberry, rose halo, polka dot, or mixed. They grow in many gardens, are tolerant of heat and drought, and are an easy way to add refined, long-lasting color. About 21,000 seeds per ounce.