Bromeliads may be propagated by vegetative methods or by seeds. Most of the epiphytes will produce offsets the may be removed and grown on separately. The stoloniferous terrestrial kinds may be divided at the start of the growing season.
Many epiphytic bromeliads will only flower once and then will die, but before they flower they will form offsets around the base of mature rosette. Left them in place until they reach one third the size of the parent rosette, then remove them by hand or with a sharp knife and plant them separately. You can replant the parent rosette so that it can produce more offsets. Plant the offsets in a mixture of one part peat, one part well-rotted leaf mould and one part sharp, gritty sand and keep the young plants slightly shaded and at a temperature of about 21 Celsius degrees (70 F). Lightly mist-spray them daily with tepid water.
The epiphytic bromeliads that will not die after flowering can be propagated by removing the offsets and attaching them to mounts in the same way as for adult plants. Mist-spray them regularly and they will soon develop roots. Add few strands of moist sphagnum moss at the base of the rosettes to retain moisture.
Some terrestrial bromeliads have stoloniferous rootstocks that also produce offsets. At the start of the growing season carefully remove the offsets – some of them may already have roots – and replant them in a mixture of one part shredded peat substitute or peat, 1 part leaf mould and 3 parts coarse sand.
The propagation from seeds must be done with fresh seeds as they are not viable for long.