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Endendros
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I know how easy it is to typically clone with coco coir - previous to my recent attempts I was seeing >90% success rates with multiple strains.
However, over the last month+ (I'm assuming since the onset of winter here in Cali) I've been having problems! While one of my sativas that I cut a few weeks before it got cold rooted 11/12, I had a 100% loss rate of one of my indicas (14 out of 14 cuts) from the same time period, and I've also had to save at least 8 of another indica variety (pulled and put into plain tapwater - wish I would've thought of that before I lost the others!) while waiting futilely for the others still in the choir to root.
I've been using proper cloning practices to avoid contamination and air bubbles in the stems; cutting leaves to reduce transpiration, etc. etc. I've been using a dome though it's not completely sealed. A few of my cuts would wilt temporarily but typically with a little additional water it would seal up their contact with the medium and they'd perk back up. The cuts that I had the 0/14 success rate I was also using a rooting hormone (go figure). My most recent cuts I decided to just try straight coco with no hormone since it didn't seem to help last time and many say it's unnecessary anyways.
My cuttings have just been sitting, looking normal for maybe a week or two (OK maybe longer - it's hard to keep track) and then would start to shrivel up. It seems to me like the stems are either drying up or rotting 'cause I've been able to save some of these wilters by pulling them from the coco, cutting a little more of their stem off and placing them into straight water - the majority of them perk right back up!
I've been trying a heating pad the last week+ but no improvement - though no worsening either at least. In many of the failed cuttings I noticed mold growing at their base or on the surface of the coir so this may be a dampening off issue? Keeping the coco too wet? I've only been rewetting every few days as the coco appears to dry out so... I do notice that the coir is definitely not drying out as fast as it was back in slightly warmer weather. My apartment stays about 70*F, and I think around 45% humidity. The clones sit about a foot and a half under a 125W CFL in my little veggie box and have been partially obscured from above by the previously rooted sativas vegging.
I know that this is a lot of info but any help would be greatly appreciated! =D
However, over the last month+ (I'm assuming since the onset of winter here in Cali) I've been having problems! While one of my sativas that I cut a few weeks before it got cold rooted 11/12, I had a 100% loss rate of one of my indicas (14 out of 14 cuts) from the same time period, and I've also had to save at least 8 of another indica variety (pulled and put into plain tapwater - wish I would've thought of that before I lost the others!) while waiting futilely for the others still in the choir to root.
I've been using proper cloning practices to avoid contamination and air bubbles in the stems; cutting leaves to reduce transpiration, etc. etc. I've been using a dome though it's not completely sealed. A few of my cuts would wilt temporarily but typically with a little additional water it would seal up their contact with the medium and they'd perk back up. The cuts that I had the 0/14 success rate I was also using a rooting hormone (go figure). My most recent cuts I decided to just try straight coco with no hormone since it didn't seem to help last time and many say it's unnecessary anyways.
My cuttings have just been sitting, looking normal for maybe a week or two (OK maybe longer - it's hard to keep track) and then would start to shrivel up. It seems to me like the stems are either drying up or rotting 'cause I've been able to save some of these wilters by pulling them from the coco, cutting a little more of their stem off and placing them into straight water - the majority of them perk right back up!
I've been trying a heating pad the last week+ but no improvement - though no worsening either at least. In many of the failed cuttings I noticed mold growing at their base or on the surface of the coir so this may be a dampening off issue? Keeping the coco too wet? I've only been rewetting every few days as the coco appears to dry out so... I do notice that the coir is definitely not drying out as fast as it was back in slightly warmer weather. My apartment stays about 70*F, and I think around 45% humidity. The clones sit about a foot and a half under a 125W CFL in my little veggie box and have been partially obscured from above by the previously rooted sativas vegging.
I know that this is a lot of info but any help would be greatly appreciated! =D