Growing Dragonfruit from seed:
Firstly you must obtain a dragonfruit, cut it open, and begin to harvest the minuscule seeds. Try carefully to collect only the seeds and not the surrounding flesh. Then, if possible, you should rinse the seeds and clean them of the sugary flesh and juice that has the potential to lead to rotting and disease during the germination process. I use a metal tea strainer to do this, rinsing several times while removing any visible pieces of flesh.