Does there need to be a lights off temp drop?

So my nighttime temperatures were getting down to 62 degrees. In order to get better quality bud I added heating system. And now I have the proverbial stupid question...

Looks like I should be able to regulate my temps at lights off to about 75 degrees. My daytime temps run between 75 and 80 degrees. Is that going to be OK or does there actually need to be a difference in temperature between lights off and lights on?

vhawk said:

So my nighttime temperatures were getting down to 62 degrees. In order to get better quality bud I added heating system. And now I have the proverbial stupid question...

Looks like I should be able to regulate my temps at lights off to about 75 degrees. My daytime temps run between 75 and 80 degrees. Is that going to be OK or does there actually need to be a difference in temperature between lights off and lights on?

Click to expand...

You want a difference I run 77 lights on 67 off

Try to go a least 5% lower when lights are off

anything in the 60s at night is perfectly fine.

What's more important is making sure your humidity doesn't drop when lights go out.

Bose said:

You want a difference I run 77 lights on 67 off

Click to expand...

well thats actually not overly right you don't need a temp drop at night clearly your temps are going to drop at night somewhat with your lights off.. but when your growing soil grows you wanna keep the soil warm enough that it doesnt take excess energy to reheat the medium.. your bio life slows at colder temps when using soils uptake does as well. you want a warm root zone in soil when i say warm i don't mean you want 80 degree soil but generally you wanna keep it in the 70 degree range or so.

your fine in the 66+ range but i would keep it above 66... thats still slightly too cool IMOP at night in the winters, unless that 66 is being kept stable with a heater

Zero temp drop for long periods of time can stunt growth, but during flower in the stretch phase you can limit the stretch of the plant (hereby shortening your node spacing) by keeping the temp drop as minimal as possible

Listen to phil. Good luck

Sweet. Double sweet cause I'm thinking it wasn't soo stupid a question and now I have some parameters to start with. I appreciate everyone's thoughtful answers.

On several grows my lights off temps were equal to my lights on temps. I saw absolutely no negative effects at all.