Crossing American Pie (Bay 11 x Cherry Pie) with Grandpa's breath produces this Grand Slam strain which is a highly potent indica hybrid marijuana strain with good yields and a propensity to develop some very nice colours as it gets near harvest time. Grand Slam grows well indoors, outdoors and in a green house taking 8 - 9 weeks to flower; outdoors harvest time is September - October depending on local conditions.
Are you growing Grand Slam seeds? Record it on your Grow Diary!
American Pie x Grandpas Breath
9 weeks - — Yield
Dungeons Vault Genetics List of Seeds
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