Melaleuca rarely has to compete directly with other tree species in Florida because it mainly invades sparsely vegetated ecotones, prairies, marshes, and fire-damaged forests. Mature trees are classed as intolerant, although some germination and seedling development does occur in shade. Massive seed release typically follows disturbance such as fire, allowing melaleuca to invade the site and form an almost pure stand. Flowering occurs in every month except February, March, and April. After flowering, twigs continue to elongate from the ends of spikes to produce leaves or more flowers.
Individual trees bloom from two to five times a year.