How to re pot an orchid
Orchids General Guide - for commonly kept species (Epiphytes)
Repotting: With orchids its not just a case of the plant outgrowing its pot, rather old compost is beginning to break down and the air cannot get to the plants roots properly. Bark based compost should be changed at least every two years for best results. The ideal time to repot the orchid is after it finishes flowering, when you see new growth starting to appear.
Clear pots are usually preferred since they allow you see what going on with the roots and substrate, pots with extra ventilation holes are also beneficial.
The new substrate may be moistened before use. Gently remove the old substrate and throw it away, look for root damage and remove any rotten or dead bits, sometimes orchids produce aerial roots, these can be left above the compost. Carefully hold the plant in place inside the pot keeping the base of the plant in line with where the top of the substrate will eventually be, then drop compost around the roots tapping the pot as you go - until almost level with the leaves. Try not to pack the substrate in too tightly as air pockets will be beneficial - you are looking for good drainage and aeration. Be careful not to damage the roots.
Terra Core make a range of orchid potting mixes including:
FOREST BLEND - premium universal potting mix for orchids with bark, moss and clay pebbles.
SUPERCOURSE - chunky substrate with lava - free draining for precise water control
EXPERT BLEND - with horticultural charcoal & perlite
PREMIUM HORTICULTURAL CHARCOAL - for your own mixes
Orchid Pots avialble here