knowing when to repot orchids

When to repot

Regular observation of your orchids is the best way to determine when to repot them. Healthy orchids have healthy roots and it is toward this goal that we tailor our potting practices.

Spring is generally the best time to repot orchids. It is at this time that they are in their most active growth stage and have a full growing season ahead. They can establish themselves in their new homes before their winter rest period. A cluster of root tips at the base of a new lead signals the beginning of a growth period. These new roots are very brittle and can be broken easily, so be careful, they need to develop fully to be able to supply nutrients to the orchid plant throughout the year. It becomes difficult to repot without damaging them if they get much longer than 1". Orchid roots are more supple and easier to work with if the plant has been watered before repotting. Some orchids are in active growth year-round and can be repotted at anytime. But for most, it is not a good idea to leave a plant to overwinter without any roots. By doing so you will certainly set it back, if not lose it altogether.

There are two reasons why we need to repot our orchids. The medium may be beginning to break down and restrict oxygen to the roots; or the plant may be physically outgrowing its present pot, basket or mount. Your job is easier and the plant's health will be better if these conditions are addressed before they become severe. A huge Cattleya growing on the outside of the pot is more work to repot than one whose new lead is just approaching the edge of the pot. A plant left in decaying medium will eventually die.