Time for forcing

My plants are now about 50 cm tall. They can grow to a maximum of 130 cm because of the low ceiling in my closet. How tall should they be when I start the flowering period so that they won’t bend later on?
Slovenian Rookie,
Ljubljana, Slovenia

Varieties differ in the length that they grow after forcing. Pure Indicas grow about 30 percent taller after forcing. Sativas may double in length or grow even taller, trying to reach a potential height.

Hybrids or stabilized new varieties are mostly combinations of Indica-Sativa strains bred for desirable cultural characteristics. As a result, most varieties flowered at 50 centimeters will grow no more than 50 percent taller, to about 75 centimeters. If it is mostly sativa, it could grow to a full meter.

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