LED Cannabis Flowering Week 4

18+ LED Cannabis Flowering Week 4. Top Shelf Grower brings you a frosty marijuana update from the grow tent at the end of week 4 of the flowering period.


  1. are you using any CalMag supplements? We've noticed plants under LEDS often show signs of magnesium deficiency.

    Also don't worry too much if the buds seem petite, you'll find they're dense and heavy come the final weigh-in.

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