- Species and varieties: Vinca, commonly known as periwinkle, includes species such as Vinca minor (lesser periwinkle) and Vinca major (greater periwinkle). These species are known for their glossy green leaves and vibrant flowers, which can be blue, purple, or white.
- Hybrid or heirloom: Vinca seeds are typically heirloom varieties, meaning they are open-pollinated and can be saved and replanted each year. However, there are also hybrid varieties available that have been bred for specific traits such as disease resistance or unique flower colors.
- Pruning and training: Vinca periwinkle requires minimal pruning. However, trimming back the plant after flowering can encourage new growth and maintain a tidy appearance. It can also be trained to grow as a ground cover or in hanging baskets.
- Fertilization needs: Vinca periwinkle is a low-maintenance plant with modest fertilization needs. A balanced, slow-release fertilizer applied in the spring can support healthy growth. Over-fertilization should be avoided as it can lead to excessive foliage growth at the expense of flowers.
- Hardiness zones: Vinca periwinkle is suitable for USDA hardiness zones 4-9. It is a versatile plant that can thrive in a variety of climates, from temperate to subtropical regions.
- Climate requirements: Vinca periwinkle prefers a warm climate with plenty of sunlight. It can tolerate partial shade but performs best in full sun. The plant is drought-tolerant once established and can handle a range of soil types, though it prefers well-drained soil.