How To Start Zinnias From Seed. It takes air and soil of more than 70 F to germinate well so wait until spring is firmly in place before planting zinnia seeds. Peat pots poo pots and the like would work wonderfully.
How to Plant Zinnias. Lower temperatures will result in slower germination. Harden-off and transplant out after last frost.
How to Plant Zinnias.
Plant in peat pots that are 2 to 3 inches tall. Find a sunny location. Starting seeds in peat pots will do away with the need to re-pot as they grow. By sowing zinnia seeds early in the year you can enjoy riotous colour from midsummer until the first frosts.
