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Fresh cannabis plants are around 80% water (all %'s by weight); curing generally begins after the cannabis has lost half of it's initial mass, and contains approximately 33% of it's initial water.
A: Based on a prescription of 1 gram per day, there is an easy formula to calculate how many plants you can grow and how much dried marijuana you can store: 1  Indoors: 1 gram/day = 5 plants & 225 grams in storage.2  Outdoors: 1 gram/day = 2 plants & 750 grams in storage.: Based on a prescription of 1 gram per day, there is an easy formula to calculate how many plants you can grow and how much dried marijuana you can store: 1  Indoors: 1 gram/day = 5 plants & 225 grams in storage.