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  • Light Spectrum For Sativas

    Posted by Jacky on September 21, 2026 at 6:53 pm

    Red heavy spectrums during flower push sativa plants to stretch even further, which is the opposite of what most indoor growers want. Running a blue leaning light through the first two weeks of twelve twelve keeps the internodes tighter before shifting toward a warmer spectrum for bulking. I tested this on two clones from the same mother after reading the lighting notes on https://hazesativaseeds.com, and the blue start plant finished a good thirty centimetres shorter. It is a small tweak but one that adds up in a tent with limited headroom.

    Jacky replied 1 week, 1 day ago 1 Member · 0 Replies
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