Cloning in rockwool cubes

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hubcitygrow25

Member
First off sorry if this a is repeat thread. I've had success cloning in soil, but am struggling with rockwool. I currently have 3 cuttings that I clipped at a 45 degree angle, trimmed half off fan leaves, scraped stem, dipped in clonex, inserted in soaked cubes, and put them in my humidity dome. It's been 8 days with misting twice a day, and all have new growth and are perky/green, but no roots showing.

Not sure if they just need more time?? I've had them root in soil in about 7/9 days..
 
Billy the Mountain

Billy the Mountain

Well-Known Member
#1 problem with rockwool is keeping it too wet. I soak and then "fling them" to remove excess water.
You shouldn't need to spray, dome alone will maintain adequate humidity.
Trimming 1/2 the fan leaves is unnecessary
7-10 days is fairly typical cloning in rockwool
 
H

hubcitygrow25

Member
Billy the Mountain said:
#1 problem with rockwool is keeping it too wet. I soak and then "fling them" to remove excess water.
You shouldn't need to spray, dome alone will maintain adequate humidity.
Trimming 1/2 the fan leaves is unnecessary
7-10 days is fairly typical cloning in rockwool
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Thanks for the response. I did fling the cubes after soak and more water drained out when I pushed them into the slots in the tray. I guess since I've only cloned in soil before and was able to see small roots poking through... I've been second guessing rockwool since I have yet to spot a root. I'm optimistic since they're aren't yellowing and are still showing new growth.
 
H

hubcitygrow25

Member
hubcitygrow25 said:
Thanks for the response. I did fling the cubes after soak and more water drained out when I pushed them into the slots in the tray. I guess since I've only cloned in soil before and was able to see small roots poking through... I've been second guessing rockwool since I have yet to spot a root. I'm optimistic since they're aren't yellowing and are still showing new growth.
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Luckily I have all three mom's to try again, but I'd hate to losing the current cuttings
 
J232

J232

Well-Known Member
Another thing with rock cubes, make sure you don’t squeeze them or crush them at all, like mentioned, flick excess water out. I usually wet the cubes as needed with a one or two sprays from a bottle.
 
H

hubcitygrow25

Member
J232 said:
Another thing with rock cubes, make sure you don’t squeeze them or crush them at all, like mentioned, flick excess water out. I usually wet the cubes as needed with a one or two sprays from a bottle.
Click to expand...
Thanks. Should I scrap these? Or give them more time since they still appear healthy? I gave them a very light tug and they felt like there's something going on in there. Hopefully they root. I did kind of squeeze them into the tray slots.. Not sure if they were squeezed too much
 
J232

J232

Well-Known Member
I would leave them unless they are limp and not improving. If they are perky after 8 days, just give it a few more and re assess, sometimes they run longer, sounds like they should root.

My last rock wool cuts, I only took 2, one never showed roots before I potted it, was beyond 8 days, the other showed roots within the 8 days.
 
H

hubcitygrow25

Member
Update: although the cuttings looked to be in good health, I think the small fluorescent tube I was using wasn't cutting it. I picked up a 32 watt full spectrum led, and almost instant change. All three cuttings including a fourth I added today perked right up, even more than before. The 3 first cuttings all had roots poking out by days end after the light upgrade.
 
H

hubcitygrow25

Member
J232 said:
I would leave them unless they are limp and not improving. If they are perky after 8 days, just give it a few more and re assess, sometimes they run longer, sounds like they should root.

My last rock wool cuts, I only took 2, one never showed roots before I potted it, was beyond 8 days, the other showed roots within the 8 days.
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Just a quick update. They all ended up rooting and have been happily transplant into Solo cups. Thanks again for the tips. I was ready to chuck them and start over. I have my girls Purple Punch, Godfather OG, and Wedding Cake...
 

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J232

J232

Well-Known Member
hubcitygrow25 said:
Just a quick update. They all ended up rooting and have been happily transplant into Solo cups. Thanks again for the tips. I was ready to chuck them and start over. I have my girls Purple Punch, Godfather OG, and Wedding Cake...
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Awesome :weed:
 
Florere

Florere

Well-Known Member
To drain rockwool blocks i always put them on top of the other ones. Then they drain dry. The more you put each other the drier it gets.
 
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