- Species and varieties: Vinca, commonly known as periwinkle, belongs to the Apocynaceae family. The white variety is often referred to as Vinca minor 'Alba' or Catharanthus roseus 'Albus'. These species are known for their glossy green leaves and white flowers.
- Hybrid or heirloom: White Vinca Periwinkle seeds are typically hybrid varieties, bred for their specific color and resilience. Hybrid seeds often offer improved disease resistance and uniformity in growth.
- Pruning and training: Minimal pruning is required for Vinca. However, trimming back the plants after the first bloom can encourage a second bloom and maintain a tidy appearance. Deadheading spent flowers can also promote continuous blooming.
- Fertilization needs: Vinca periwinkle plants are low-maintenance and do not require heavy fertilization. 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: White Vinca Periwinkle is suitable for USDA hardiness zones 4-9. It can tolerate a range of temperatures but thrives best in warmer climates.
- Climate requirements: These seeds prefer full sun to partial shade and well-drained soil. They are drought-tolerant once established and can handle a variety of soil types, making them versatile for different garden settings.