![]() USES: Taller varieties make excellent cut flowers. SOIL REQUIREMENTS: Fertile soil rich in organic matter. Water The two most important supplies will be seed starting mix and lights. Zinnia seeds (here are my favorite places to buy flower seeds online) 3. Stem is firm from point of cut to just below the bloom. A basic setup to start seeds indoors will require just a few supplies. Pinching of initial bud or bloom and subsequent deadheading is recommended to encourage strong branching and bloom production. Succession-sow/plant every 2 weeks for prolonged yields of high-quality stems. What To Prepare Zinnia seeds Seed starting containers (cell tray or small pots) Seed starting medium (seed compost and some Vermiculite) A container for bottom watering A heat mat Shelving Grow lights, or a good light source (fourteen to sixteen hours of light daily) Planting Process Fill your container of choice with your seed starting medium. Direct seed - After last frost, sow 1/4" deep. Do not allow plants to become root bound and avoid disturbing roots transplant shock or other stress events may cause double-flowering varieties to produce single blooms for a period following stress. Harden off and transplant out after last frost. Plant directly outdoors once the danger of frost has passed or start indoors 4-6 weeks prior to last frost for earlier blooms. ![]() Lower temperatures will result in slower germination: 5-7 days at 70-75☏ (21-24☌). ![]() ![]() A heat mat will help maintain an accurate temperature. DAYS TO GERMINATION: 3-5 days at 80-85☏ (27-29☌) SOWING: Transplant (recommended) - Sow into 72-cell flats, or preferred seedling container, 4 weeks before last frost. ![]()
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