| Most orchids need to be repotted once every two years. The bark or moss that the orchids are grown in gradually deteriorates. If repotting is not done, the bark or moss become decomposed and packed. Under these conditions, roots are not properly aerated, drainage becomes blocked so there is too much standing moisture, and the plant eventually dies from asphyxiation and the root rottens. Ideally, orchids should be repotted immediately after flowering. |