I have a 60w light bulb inside my rooting box. It keeps inside the box a constant 80 degrees. The bulb is not directly touching any of the plants leaves. Could such a high concentration of light in an enclosed area be harmful to the plants? I check them evetyday and they seem ok.  Would hate to screw up after coming this far!

I don't think it will be a problem.

I use no extra heat other than room temp. for rooting, 

I started my cuttings last year in a large aquarium under a 4' shop light. The light itself didn't seem to be an issue for me. I also used bottom heat (about 70F). I mist daily. Doing the same this season and things are great so far.

My only concern with yor set up is it might be getting too warm. If your cuttings push top growth too fast without having the roots to support it, the cuttings could over-expend their energy and go kaput.

My first reccomendation would be to use a flourescent bulb instead of incandescent if you're not already. Maybe even go to a lower watt bulb - especially if your grow box is pretty small.

I could be wrong and I hope you get more input on this. Who knows, all may go just fine and you prove me wrong.......wouldn't be the first time and certainly wouldn't be the last :-) .

Anyone else?  

Yeah good idea, maybe ill drop it down to a 40w bulb and see what kind of heat that generates.

I don't see a problem. Folks in the deep southeast have been doing this under sheets for years to protect in-ground trees (like bananas) for decades when freezing temps arise (we did it in Florida routinely). If it truly is staying around 80, that's about the most I would want it to be...75-80 is fine, in my opinion. I think going over 80-85 would be pushing my comfort level.

Good point Jason. Thanks for chiming in. 

There has always been the old method of stick 'em in the ground & see what happens. But of course we are going for a little higher success rate. Especially when we might only have one ctg of a given variety.

ce, finding a method that you're confident with & sticking with it may be half the battle. There are many paths leading to the same (fig) tree ;) .   

Yeah the leaves all seem to be healthy and happy green and i wrapped tinfoil around the transparent cups to give the roots some darkness.