You can juice either the leaves or the fresh buds of the cannabis plant. If you use the fresh buds, cannabinoid levels will be much higher in your juice. Make sure if you use the fresh buds, and don’t desire a psychoactive THC experience that the buds are literally just picked off the plant, and that you do not use any citrus fruit in your juice. Conversely, if you desire a psychoactive experience from your juice, use buds and add them to citrus fruit.