T3ddy
- 7
- 3
Hi guys, I'm hoping to get some help as to why my crops keep herming.
I've been growing for around 10 years, aside from the first couple of grows I have never faced any herm issues until 6 crops ago where they all hermed. I've always bought my seeds from Royal Queen which have been amazing, until issues arised and I had to buy seeds elsewhere. Anyway, they turned out shit and all hermed. Next crop, same seeds, another load of herms. Assumed it was down to shitty genetics, so I trashed the remaining seeds and bought from RQ again. Started a new crop with the RQ seeds, majority of which turned hermy. Crop 4, from Barneys Farm, majority also hermed. Crop 5 (RQ again), yeah you guessed it, almost all of them hermed. Current crop (Barneys), 12/16 plants have just started to herm 2 weeks into flowering. Each crop has always been around 16 plants over the past 10 years. Strain used is usually Critical.
Routine is as follows:
Feed schedule:
I use this schedule from BioBizz. Exceptions being I don't bother with the Heaven, and I use Grow instead of Fish-Mix. Calcium additive added as per the dosage on the bottle. pH is at 6.2 (using pH up or down to achieve this) and is checked every single feed religiously. They have around 10 litres between them all, sometimes a little more if necessary. If they don't need feeding, they're left to be checked the following day. I don't feed until there's runoff (as is stated on the feed schedule I linked, and tbh it's something I've never done anyway).
I've checked for light leaks many many times and there's nothing at all, it's 100% pitch black. Air circulating via a 6" inlet and outlet. They have never shown any symptoms of light/heat stress. The temperature/humidity is checked multiple times a day. The temp/humid sensor is positioned at the canopy of the tallest plant, and there is one at either end of the room.
Sorry, this was long af, I just wanted to get as much detail in as possible and hopefully saved from another miserable, stressful crop.
Thanks, T3ddy
I've been growing for around 10 years, aside from the first couple of grows I have never faced any herm issues until 6 crops ago where they all hermed. I've always bought my seeds from Royal Queen which have been amazing, until issues arised and I had to buy seeds elsewhere. Anyway, they turned out shit and all hermed. Next crop, same seeds, another load of herms. Assumed it was down to shitty genetics, so I trashed the remaining seeds and bought from RQ again. Started a new crop with the RQ seeds, majority of which turned hermy. Crop 4, from Barneys Farm, majority also hermed. Crop 5 (RQ again), yeah you guessed it, almost all of them hermed. Current crop (Barneys), 12/16 plants have just started to herm 2 weeks into flowering. Each crop has always been around 16 plants over the past 10 years. Strain used is usually Critical.
Routine is as follows:
- Seeds into root riot cubes, then into a grow tent with the temperature at around 25C.
- After germination, they go into 4" pots with Biobizz light mix under a 250cfl light. Temperature 24-25C (20-21C with lights off) humidity at 68%. They are topped (once) when they get their 5th set of leaves. They are fed water (pH @ 6.0, checked every single time) for around a week when needed. 18-6 light schedule.
- After around 4-5 weeks, they're moved into 22 litre pots with more Biobizz light mix and put into a tent with 4x 600W HPS lights (only 2 are switched on at this point). Temperature at 26C (20-21C with lights off), humidity at 50%. Stay on an 18-6 schedule until the plants reach around 35 centimetres. Fan circling air around, but not touching the plants directly.
- After getting to that size, they're spread out more and the other 2 lights turned on (4 plants per light). Switch to a 12-12 schedule. Humidity at 50%, temperature at 26-27C (20-21C with lights off). Fan circling air around, but not touching the plants directly.
Feed schedule:
I use this schedule from BioBizz. Exceptions being I don't bother with the Heaven, and I use Grow instead of Fish-Mix. Calcium additive added as per the dosage on the bottle. pH is at 6.2 (using pH up or down to achieve this) and is checked every single feed religiously. They have around 10 litres between them all, sometimes a little more if necessary. If they don't need feeding, they're left to be checked the following day. I don't feed until there's runoff (as is stated on the feed schedule I linked, and tbh it's something I've never done anyway).
I've checked for light leaks many many times and there's nothing at all, it's 100% pitch black. Air circulating via a 6" inlet and outlet. They have never shown any symptoms of light/heat stress. The temperature/humidity is checked multiple times a day. The temp/humid sensor is positioned at the canopy of the tallest plant, and there is one at either end of the room.
Sorry, this was long af, I just wanted to get as much detail in as possible and hopefully saved from another miserable, stressful crop.
Thanks, T3ddy