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Size & flower question

NewGrow2019

New Member
My girls are almost seven weeks old, approximately 1.5 ft tall, bushy but all tops are pretty close to level. The stems are only about the thickness of a sharpie, they are hardened and really stiff, dark green turning brown. Is this normal or average for size? My main 4 limbs have about 4 limbs grown up off of those. How big and thick should I let these get before switching to flower? Thanks for any input.
 

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TysonOG

Well-Known Member
Switch to flower should be determined by your height limitations. If she's 1.5ft already expect her to finish 3ft or taller if you flower her now. I flowered a handful at 1.5ft and the tallest finished at 4ft. You also need a light capable of penetrating far into the canopy. 1000w HPS is good for about 3ft of penetration, a 600w is good for 2ft etc. Most LEDs don't have strong penetration power and thus aren't as good for tall grows. Outdoors, it doesn't matter as much because sunlight is just as strong at the top of the plant as the bottom.
So basically depends on your light source and height limitations.
 

NewGrow2019

New Member
I have 6 plants under two (4 ft) 220 watt T5 HO sunlight bulbs and 4 (4ft) full spectrum 200 watt led. I hope that's enough. It took a bit to get height of lights figured and they started growing quickly when I set T5 at 20 inches and leds angled around outside at 15 inches. Wish I had figured that out 5 weeks ago, ceiling to floor (about 6-7 ft) was super slow grow . It's been about 8 days since I set that height and they have grown almost 10 inches since. I was debating switching my veg bulbs to bloom and going flower next week, just wasn't sure if they were big enough or ready with stems not being anywhere close to a lot I see on different websites that have stems an inch or more thick.
 
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