How many hours of light do my mothers need?

Think of this: in Alaska, growers have the advantage of a 24 hour natural light for a month or two straight. The growers I know from Alaska love this time because they could take twice as many cuttings as in the late summer when the cycles swing back. So 24 hour light obviously works. But for best results over an extended period of time, giving your mother 2-4 hours of darkness ensures healthy tissue production (which means hardy clones).

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