Decomposition is a slow process in which the pot begins to age and small cracks become visible. Once the pot begins decomposing, transfer your plant with the pot into the ground. This will prevent transplant shock. If kept indoors the bamboo pots will begin to decompose after 3 years; if outdoors they will begin to decompose after 2 years. If tossed in the trash they will completely biodegrade within 6 months.