When should I switch from veg to flower? First photoperiod grow

Rule of thumb: flip when the plant is 1/3 to 1/2 of your desired final height. Most strains stretch 2-3x during the first 2-3 weeks of flower.

So if your tent is 6 feet (minus light and pot = about 4 feet usable), flip at around 16-20 inches. Your 14 inches is almost there!

GSC typically stretches about 1.5-2x, so she'll probably finish around 24-30 inches if you flip now. I'd veg another week to 18 inches personally — more veg time = more yield.

Don't forget: the plant doesn't stop growing the day you flip. The "stretch" phase lasts 2-3 weeks after flip. Plan accordingly or you'll burn your tops on the light. Ask me how I know... 😅