Updated: July 18, 2023

Vinca plants, also known as periwinkles or Madagascar periwinkles, are beautiful flowering plants that can add a pop of color to any outdoor space. With their vibrant blooms and glossy green leaves, vinca plants are a popular choice for gardeners looking to create a stunning landscape. In this article, we will guide you through the process of growing vinca plants outdoors, from selecting the right location to caring for your plants.

Selecting the Right Location

Before planting your vinca plants, it’s important to choose the right location. Vinca plants thrive in full sun, so make sure to select an area in your garden that receives at least 6-8 hours of direct sunlight each day. While they can tolerate some shade, vinca plants will produce fewer flowers and have less vibrant foliage in shady areas.

Additionally, vinca plants prefer well-draining soil. If you have heavy clay soil, consider amending it with organic matter such as compost or peat moss to improve drainage. This will prevent waterlogging and ensure the health of your plants.

Planting Vinca Seeds or Transplants

There are two main ways to grow vinca plants: from seeds or transplants. Seeds can be sown directly into the ground in late spring or started indoors 6-8 weeks before the last frost date. If starting indoors, sow the seeds in seed trays filled with a good-quality seed-starting mix. Keep the soil moist and maintain a temperature of around 70°F (21°C) until the seedlings emerge.

Transplants can be purchased from nurseries or started from cuttings. If using transplants, make sure to harden them off before planting them outdoors. Harden off the plants by gradually exposing them to outdoor conditions over a period of 7-10 days. Start by placing them outside in a sheltered location for a few hours each day, gradually increasing the time and exposure to sunlight.

When planting vinca seeds or transplants, space them about 6-12 inches apart to allow for proper air circulation and growth. Dig a hole slightly larger than the root ball of the plant and gently place it in the hole. Backfill the hole with soil, firming it gently around the plant to remove any air pockets.

Watering and Fertilizing

Vinca plants have moderate water needs. Water them deeply but infrequently, allowing the top inch of soil to dry out between waterings. Overwatering can lead to root rot and other fungal diseases, so it’s important to strike a balance. During hot summer months, you may need to water more frequently, especially if your soil tends to dry out quickly.

Fertilize your vinca plants every 4-6 weeks during the growing season with a balanced, slow-release fertilizer. This will provide them with the nutrients they need for healthy growth and abundant blooms. Follow the instructions on the fertilizer packaging for proper application rates.

Pruning and Maintenance

Vinca plants are relatively low-maintenance, but they benefit from regular pruning and maintenance. Pinch back the growing tips of young plants to encourage bushier growth and more flowers. Deadhead faded blooms regularly to promote continuous blooming throughout the season.

Additionally, keep an eye out for any signs of disease or pest infestation. Vinca plants can be susceptible to fungal diseases such as powdery mildew and root rot. If you notice any signs of disease, treat them promptly with appropriate fungicides or other organic remedies. Inspect your plants regularly for pests such as aphids or spider mites and take necessary measures to control them.

Winter Care

Vinca plants are typically grown as annuals in colder climates, as they are not frost-tolerant. However, in milder climates, they can be grown as perennials. If you live in an area with mild winters, provide some protection to your vinca plants during the colder months. Mulch around the base of the plants to insulate the roots and protect them from freezing temperatures.

Conclusion

Growing vinca plants outdoors can be a rewarding experience for any gardener. With their vibrant flowers and glossy foliage, they can transform any outdoor space into a colorful oasis. By selecting the right location, providing proper care, and staying vigilant for any signs of disease or pests, you can enjoy the beauty of vinca plants throughout the growing season. So why not give it a try and add some vinca plants to your garden this year? You won’t be disappointed!