ANNUAL
Summer/Fall bloom
Frost tender
TO START DIRECTLY IN THE GARDEN
Sow seeds in well-worked soil in full sun after frost danger is over and temperatures are above 50°F (10°C) both day and night. Space seeds 2 to 3 inches apart in rows 12 inches apart, cover 1/2 inch deep and gently firm soil. Keep soil evenly moist while awaiting germination.
TO START EARLY INDOORS
Four weeks before last frost date, sow seeds 1/2 inch deep and 3 inches apart in seed starting mix. Keep warm and moist. Provide a strong light source. Wait until temperatures are above 50°F (10°C) day and night before planting in full sun.
THIN OR TRANSPLANT
When 2-3 inches tall, thin or transplant 12 inches apart, giving these large framed plants good air circulation and room to mature.
GROWING NOTES
Zinnias are easy to grow, but for abundant, healthy flowers, thin before seedlings get crowded; adequate spacing and consistent watering keeps zinnias stress-free and productive and discourages mildew. For long-lived bouquets, cut flowers in the morning when blossoms first open and petals are tight. Cut long stems well back into the plant to keep plants branching low and producing abundant blooms to attract butterflies/pollinators.
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