Glossy-leaved heat champion (botanically unrelated to true Vinca minor) that blooms through humidity that wilts everything else.
Companion plants, planting tips, FAQ, and more
Catharanthus roseus is the scientific name used by botanists, nurseries, and seed catalogs to identify Annual Vinca unambiguously. The genus Catharanthus places it within a specific plant family, and using the botanical name avoids the confusion that comes with regional common names. If you're shopping for Annual Vinca, looking up plant care details, or comparing varieties, searching by Catharanthus roseus will give you the most precise results.