Simply sow in pots containing gritty potting compost, water and then enclose the whole within a polythene bag.
YouÂve then just got to be patient for about two weeks before youÂll see the seedlings starting to appear. the seedlings have two leaves on them ... in fact these are the only leaves this plants will every produce. From this point onwards a spiny stem will begin to grow between the centre of these leaves ... with the leaves being discarded after a few months

These grow on a rambling, very spiny cactus.Called Hylocereus undatus or Hylocereus costaricensis.