Days to Germination:10-25 days
Coreopsis grandiflora, Tickseed. An easy-to-grow perennial (even in poor soil), Coreopsis will produce little, daisy-like flowers amid feathery foliage the first year if started early enough, 8 weeks before transplanting out. But it may be sown outdoors anytime from early spring up until 2 months before the first fall frost. Sow seeds shallowly, pressing them firmly into the soil surface, barely covered, as light is needed for germination. Provide even moisture and strong light during germination. Harden the plants off by gradually acclimating them to outside conditions over 7 to 10 days. Prepare a garden bed in full sunlight with well draining soil. Thin or carefully transplant the seedlings, planting them 12" apart. Coreopis should be kept moderately moist and deadheaded to prolong its flowering period. Summer flowering. Height: 24".