What is the lowest temp you have got roots to form on your clones? Having a hard time keeping temps up in bubble cloner, right now it is 65 deg and it has been 4 days. Is that too long at that temp or if they get warmer will they take off still?
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Lowest temps to get roots on clones?
- Thread starter slowandeasy
- Start date
Mr. Stinky
Member
get the temp up. they may make roots at lower temps like that, but its way harder, and may well be strain dependent. (most indica type plants may not root at all) if the temps come up, they will take to making roots. if they stay down, you might have to bubble for weeks
I started at 65º and killed everything. 75º is minimum for me. I dropped a small aquarium heater into the res.
.....D'oh! Gotta learn to type faster .....
.....D'oh! Gotta learn to type faster .....
Gonna get them up tomorrow, it has been 4 days. If the temp gets up do you think they will still root? Thought the lights would warm up the res more than it does. They still look really nice, little brown on the cut line but the tops look the same as whan cut. Right now they are under 30 watt cfl, 6500k. Do you think adding a 23 watt cfl it would be better to have higher temps and more light or less light with lower temps? Thanks!
res is only one gallon, heater is pretty big. They have one that is small and says it stays 78-80, but does not have an ajustment. The adjustable ones will fit, barely and would be close to stems because it is a small res. Might have to get a new res. Anyone have luck below 70?
Consider a Grasslin T-35 You'll have to play with it to dial it in. Say 15 minutes on, 45 minutes off.
Careful with heat pads, like sore muscles heat pads because they can get too hot - My res for the cheapo aero cloner is about 1 gallon also, I find a little 25 watt submersible aquarium heater workd like aa champ - mine usually runs about 77 deg F for rooting cuts.
I have been known to unplug the heaters a couple times a week and let the temps drift down - usually to high 60's, but I always plug them back in.
I have been known to unplug the heaters a couple times a week and let the temps drift down - usually to high 60's, but I always plug them back in.
As RockyMountainHi said, careful with the heat.
Experience tells me high temps are more detrimental to rooting clones than low temps.
In difference to what some growers think, roots do not at all appreciate high temps. A cool root environment is important, and the lower the temps the higher the oxygen content in the root zone.
Which is why you can grow a plant with temps close to 40º/105F right under the lights - and the top growth still stays lush - as long as the root zone is kept way cooler.
It's been a while since I stopped messing with bubblers, but when I clone, somewhere between 22º/72F and 24º/75F is the ideal temp.
Temps above 24º/75 will wither the clones, while temps below 22º/72F will simply keep them in stasis. It is therefore preferable to go a little lower than higher, IMO.
Experience tells me high temps are more detrimental to rooting clones than low temps.
In difference to what some growers think, roots do not at all appreciate high temps. A cool root environment is important, and the lower the temps the higher the oxygen content in the root zone.
Which is why you can grow a plant with temps close to 40º/105F right under the lights - and the top growth still stays lush - as long as the root zone is kept way cooler.
It's been a while since I stopped messing with bubblers, but when I clone, somewhere between 22º/72F and 24º/75F is the ideal temp.
Temps above 24º/75 will wither the clones, while temps below 22º/72F will simply keep them in stasis. It is therefore preferable to go a little lower than higher, IMO.
Rosy,
Yeah lower is better, but what is too low? Prolly get up to 68-70 now that some heat has been added...not sure if they will get to 72 yet. They have been at 65 ish for about 5 days. Still look good, and honestly as long as they root within a few weeks it will be no problem...just wanna make sure they root. Has it been too low for too long? Also are you guys leaving a gap or submerging the stems in your bubblers? Thanks!!
Yeah lower is better, but what is too low? Prolly get up to 68-70 now that some heat has been added...not sure if they will get to 72 yet. They have been at 65 ish for about 5 days. Still look good, and honestly as long as they root within a few weeks it will be no problem...just wanna make sure they root. Has it been too low for too long? Also are you guys leaving a gap or submerging the stems in your bubblers? Thanks!!
Uncle FREEDOM
Member
temps at 75 degrees, usually make roots quickest. To prevent stem rot etc, add a splash of hydro guard or similar product (beneficial bacteria). Even if i leave them there at 75 deg for 3-4 weeks roots are white as can be.
Well these ones must not mind the lower temps, a few have bumps already! Been 5 days, so far so good!
After closer look they are not bumps. Got the water temps up to about 75-77 now, so hopefully they will root now! Hopefully spending 5 days at lower temps did not hurt the chances.
