How to grow Zinnia Seeds
Zinnias produce vibrant blooms that thrive in the heat, attracting pollinators and adding long-lasting color to your garden. Available in diverse sizes, colors, and textures, zinnias are perfect for both cutting and enjoying outdoors. Plus, they're incredibly easy to grow!
Timing: Sow outdoors directly in the garden (April-May) in full sun after the soil warms up.
Location: Choose a well-drained spot with loose, fertile soil. Amend heavy clay soil with compost or sand for better drainage.
Sowing: Sow seeds thinly at a depth of 5mm, spacing them 30cm apart. Water gently after sowing.
Watering: Water regularly, especially during dry periods, keeping the soil consistently moist but not soggy.
Optional Indoor Sowing (March-April): Maintain a temperature of 15-25°C. Use a well-draining potting mix and keep the compost moist but not waterlogged. Provide adequate light for germination. Once seedlings are established and the frost risk has passed, harden them off for 10-15 days before transplanting outdoors.
Pinching: For bushier plants with more blooms, pinch the main stem when it reaches about 6-8 inches tall. This encourages side branching.
Deadheading: Regularly remove spent flowers to promote continuous blooming throughout the season.