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Hey growing peeps...have a question for someone how knows...I'm not acctually newb at growing but there are few new plants that me and friend planted and he said we should try and hold these on 24h light period for vegetative growth. I said they maybe might have some issues with this non-stop light cycle. They shure have enough water, the soil is always wet and they grow like crazy. These small ones are currently under 2 x 500W hallogen lights and every 12 hours they switch (only one works at a time) and they are currently at 60 cm away from the little plants. So my acctuall question is could this 24 h light hurt them under these conditions? And here's the pic of one 7 cm high and 4 days old baby...and there are 10 of those youngsters...

I thought it was advised to have a 24h light cycle in the first weeks of growing?

Funk Doctor wrote:I thought it was advised to have a 24h light cycle in the first weeks of growing?

It is.

24/7 is what most people do, though some choose 18/6. Switch to 12/12 when you wanna flower.

thanks for info guys!

didn't know that, we always had 18/6 for veggie growth, and 12/12 for flowers.

It's all a matter of preference, I've been told plants grow faster under 24 hours of light so thats what I've always used.

I never use 24 hour light. I figure we are trying to emulate nature. I dont know anywhere that the sun shines 24 hours a day and plants grow. The longest days of the year push 18 hours, and plants need dark time to perform some respiration. I do not reccomend any 24 hour on periods.

Gooster

I dont know about light cycle but I'm just letting you know that parts of Alaska have 24 hours of sunlight for a few months out of the year.

In my experience plants veg faster on a 24/0 light cycle. I've tried both 18/6 and 24/0 and never had problems with the 24. The good thing about 18/6 is that it gives your lights a chance to cool down.