Surface to barely cover.
Seed To Bloom:
Sow indoors 6 weeks before last frost. Cover with vermiculite and keep at 68-78°F until germination then at 65°F. Grow in roomy cell-packs to avoid rootbound seedlings and premature flowering.
Sow outdoors about two weeks after last frost for later blooms in longer season areas.
WHEN TO SET OUTSIDE
Two weeks after last frost, when soil has warmed.
PLACEMENT & CULTIVATION
Celosia argentea is indigenous to tropical regions of Africa. Its young leaves, stems, and seeds have long been cultivated as a source of food. An eye-catching addition to mixed summer annuals in cottage gardens, the plume Celosia boasts feathery plume flowers. It is perfect for use as a cut flower, both fresh and dry. To ensure the healthy growth of seedlings and prevent stunted plants with small, premature flowers, maintain consistent soil moisture and fertilization in the early stages of development. Celosia thrives in hot, humid weather, requiring compost-rich, well-drained soils with moderate water.
Keep evenly moist—do not allow to dry out, but avoid saturated soils.
Slightly acidic to neutral
Mix in a couple of inches of compost before planting. Alternatively, feed once a month during the growing season with an organic, all-purpose fertilizer.
Diseases & Pests:
Susceptible to thrips, aphids, spider mites, and whiteflies that can be controlled with insecticidal soap. Provide air circulation and keep water off the leaves or water early morning to discourage any leaf spots. An organic fungicide, such as copper can also be used.
When to Cut for Bouquets:
Harvest when 1/2 of the florets are open.