Help with cuttings and dome temp and humidity (heat mat)

Meast21

Well-Known Member
Ok so over the summer I changed my cutting technique by putting my cuttings in rockwool under a dome. The temp in the dome where the cuttings were was around 77 degrees and I would keep the dome closed the first 3 days so the humidity was 90% and everything was fine. After 3 days I would crack the dome and the humidity would come down to 75%, every was fine and I would get roots around 10 days.

Now its the winter and I put a heat mat under my cutting tray and its keeping the humidity high even with the dome cracked on the sides and top, so I took the tray off. The problem with this now is that my temp dropped to my ambient basement temp of 67, is this a probelm??? ... This is day 8 of cuttings and they look great so far although they have no roots yet. They have basically been 74 degrees and 90% humidity this whole time, but like I said I just took the dome off to lower the humidity some. These first 8 days with high humidity still has the rock wool moist.
 
Ok so over the summer I changed my cutting technique by putting my cuttings in rockwool under a dome. The temp in the dome where the cuttings were was around 77 degrees and I would keep the dome closed the first 3 days so the humidity was 90% and everything was fine. After 3 days I would crack the dome and the humidity would come down to 75%, every was fine and I would get roots around 10 days.

Now its the winter and I put a heat mat under my cutting tray and its keeping the humidity high even with the dome cracked on the sides and top, so I took the tray off. The problem with this now is that my temp dropped to my ambient basement temp of 67, is this a probelm??? ... This is day 8 of cuttings and they look great so far although they have no roots yet. They have basically been 74 degrees and 90% humidity this whole time, but like I said I just took the dome off to lower the humidity some. These first 8 days with high humidity still has the rock wool moist.

So is it better to have a humidity of 90% all through the cutting process with a temp of 75 degrees. Or is it better to have a humidity around 55-75% with temps around 67 degrees?? ... Not sure why my heat mat is keeping my humidity at 90% with the top and sides cracked still on the dome. Is this common for heat mats??
 
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Ok so over the summer I changed my cutting technique by putting my cuttings in rockwool under a dome. The temp in the dome where the cuttings were was around 77 degrees and I would keep the dome closed the first 3 days so the humidity was 90% and everything was fine. After 3 days I would crack the dome and the humidity would come down to 75%, every was fine and I would get roots around 10 days.

Now its the winter and I put a heat mat under my cutting tray and its keeping the humidity high even with the dome cracked on the sides and top, so I took the tray off. The problem with this now is that my temp dropped to my ambient basement temp of 67, is this a probelm??? ... This is day 8 of cuttings and they look great so far although they have no roots yet. They have basically been 74 degrees and 90% humidity this whole time, but like I said I just took the dome off to lower the humidity some. These first 8 days with high humidity still has the rock wool moist.
I’d try to keep it warm and keep less water to transpire from heat mat (if you’re keeping water in tray) and also clear dome of built up humidity daily by shaking excessive moisture off. Can you turn room temp up?
 
Definitely keep it warm.
Below 74, growth really slows.
Temps up, and let them dry out a bit to induce roots searching/growth
 
I’d try to keep it warm and keep less water to transpire from heat mat (if you’re keeping water in tray) and also clear dome of built up humidity daily by shaking excessive moisture off. Can you turn room temp up?

Ok so when I want to lower humidity I will just empty the tray with the water in it. THanks makes sense.
 
Definitely keep it warm.
Below 74, growth really slows.
Temps up, and let them dry out a bit to induce roots searching/growth

Yeah the temps only stay around 74 degrees with the dome on, but this keeps the humidity high... The other poster said to get rid of the water in the tray hopefully to bring humidity down. I just went down there and tray only had about 1/4" of water in it so I dumped it out.
 
Definitely keep it warm.
Below 74, growth really slows.
Temps up, and let them dry out a bit to induce roots searching/growth

Almost day 11 of cuttings and no roots yet although they all look good. So the rock wool was wet much of this time and thats why I'm not seeing roots yet I take it? I'm letting them dry out now or trying to get the humidity into the 65-75% range. One little opening in the dome can make the humidity swing 15-20%.
 
Don’t worry about humidity so much.
Get the wool close to dry so the roots will search.
Too humid and wet and they’ll just rot.
 
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