From a fellow grower: I have had the plants in optimal conditions, and they have been above ground for 1 month now (35 days) and I not a single one has grown taller than 3 inches tall and none of them have even gotten their first set of 5 bladed leaves yet.
I have had the plants in optimal conditions, and they have been above ground for 1 month now (35 days) and I not a single one has grown taller than 3 inches tall and none of them have even gotten their first set of 5 bladed leaves yet.
They were started in Fox farms happy frog and were transplanted to a 70/30 Ocean forest/happy frog mix when the roots were established.
The lights are 20inches above the plants with a PPFD of 385-405
They are being watered based on weight of the pot / look of the plant. The runoff water is measuring at a good pH (6.0)
Those are pretty big pots for those plants to be watered to runoff.
And 6.0 is too low for fox farms where it’s a soil.
Aim for 6.5 - 6.8 for your watering / feedings.
And pull back on the amount you give them till they get a bit bigger.
I’m suspecting the roots are staying too wet for too long from what you describe above.
Edit. Most folks will start in a smaller pot first like a 1 liter or a solo cup then transplant once the roots fill that area.
Agreed with @Oldguy and @Borderryan22 on the watering. I have found temperature and humidity to be big factors in stunted growth in the winter months. Try to get it to 85-90 degrees and high humidity. I cut off the bottom of a 2-liter bottle and tent the ladies for humidity misting the inside of the bottle a couple times a day until the leaves touch the bottle. I put a small space heater in the middle of my lung room to bring the temps up at night. Daytime is a wash since it’s my office and can’t stand anything above 70. Come 6pm-7 am it’s good.
