Originally Posted by Mad Cook
What's secret about that? Coir has been used in potting compost for years and years.
To explain just a LITTLE about propagating orchids---- one way is tissue propagation. (I'm leaving out a LOT of detail!) A leaf from the parent plant is sterilized (gently) with a bleach solution then put into a petri dish.
Picture of a petri dish follows:
Then when the time is right some tissue is cut from that leaf and put into a container with the growing medium in it. Many orchid breeders will use a 'store-bought' medium but my brother, being a chemist, developed his own
'secret' one which involved fresh coconut. Hint: it wasn't coir!
Picture of a bit of tissue in growing medium which has to have the right amount of light and temp. (He devoted an extra bedroom for shelves upon shelves full of these.)