Table of Contents
March is an exciting time for gardeners in Zone 6, as it signals the beginning of the planting season. Starting flowering plants indoors can give your garden a head start, ensuring vibrant blooms in late spring and early summer. This guide highlights some of the best flowering plants to start indoors in March, tailored specifically for Zone 6 climates.
Why Start Flowers Indoors in March?
Starting flowers indoors in March allows plants to develop strong roots and healthy growth before transplanting outdoors. Zone 6 experiences cold springs, so starting indoors helps protect delicate seedlings from frost and temperature fluctuations. It also extends your growing season and increases the chances of a colorful garden.
Best Flowering Plants to Start Indoors in March
- Pansies – Known for their cheerful faces and vibrant colors, pansies are cool-weather favorites that thrive when started early indoors.
- Petunias – These versatile flowers bloom profusely and come in many colors, making them perfect for containers and garden beds.
- Begonias – With their striking foliage and bright flowers, begonias add visual interest indoors and outdoors.
- Impatiens – Ideal for shaded areas, impatiens provide continuous color throughout the growing season.
- Marigolds – Easy to grow and pest-resistant, marigolds are excellent for starting indoors in early spring.
- Snapdragons – These tall, spiky flowers add vertical interest and bloom early when started indoors.
- Geraniums – Popular for containers, geraniums flourish when started indoors and transplanted later.
Starting Tips for March
To ensure successful germination and healthy growth, follow these tips:
- Use quality seed-starting soil that retains moisture but drains well.
- Plant seeds at the depth recommended on the packet.
- Maintain consistent moisture without overwatering.
- Place seedlings in a warm, bright location or under grow lights.
- Keep the indoor temperature between 65°F and 75°F for optimal growth.
- Harden off seedlings gradually before transplanting outdoors after the last frost date.
Transplanting Outdoors
Once the danger of frost has passed, usually in late April or early May for Zone 6, harden off your seedlings by gradually exposing them to outdoor conditions. Transplant them into prepared beds or containers, ensuring they have adequate space, sunlight, and well-draining soil. Regular watering and fertilizing will support healthy growth and abundant blooms.
Conclusion
Starting flowering plants indoors in March is a rewarding way to enhance your Zone 6 garden. By selecting the right plants and following proper starting and transplanting techniques, you can enjoy a colorful and vibrant garden season from early spring to fall. Happy gardening!