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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.


Gender Regular
Genes Mostly indica
Genetics American Pie x Grandpas Breath
Flowering 9 weeks

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