Heirloom Crops are seeds that require a past crop to be mastered for it to be unlocked and able to be planted. Bushels of locked crops purchased from the Farmer's Market allow the user to plant that crop as long as the bushel is active. The locked crops can either be a permanent crop, or a Limited Edition crop, such as Triticale (only available during the Swiss Alps Event) and Dog Rose (German Event). It is expected to see more of these Limited Edition locked crops in the future.