Sowing should be done at the begin-ning of the rainy season. All calliandra planting material is susceptible to early competition. Intensive weed control should be practiced until calliandra is well established, particularly in grass ecosystems. Seed production and collection. Trees flower through-out the year but have a peak flowering period 3 months before the dry season.
Individual flowers are receptive to pollination for only one night.
Individual trees may produce receptive flowers over a 4-6 week period. Demand for high-quality calliandra seed is growing and exceeds supply. The Oxford Forestry Institute is currently working on seed orchard guidelines. Calliandra seed is sensitive to improper handling only fully mature seed should be collected, before pods open. Bulk seed should be stored in sacks in a shaded, cool, dry area, protected from insects, rats, and mice.