Gelsemium sempervirens 'Margarita' (Carolina jessamine ‘Margarita’) A beautiful and restrained vine with dark green foliage and fragrant, golden yellow, trumpet-shaped flowers in spring. May repeat some in fall, too. Also semi-evergreen! Margarita is a strikingly hardy selection for gardeners who could never grow Jessamine before! Easy to grow and very giving. hardy to USDA zone 6.