I sprouted about a dozen plants in my two-column kit using grow plugs and placed them in the kit pots with the clay pellets. Over the next month, all the seedlings have stopped growing and/or started to wilt and die. At first I thought I was over-watering, so I changed the pump timer to reduce watering from 15 minutes per hour to 15 minutes every 2 hours. That didn’t seem to help. Otherwise, I followed Windowfarm instructions: placed seedlings in the system when they were about 2 inches high and added liquid plant food to the water in the reservoirs in the proportion in the food’s guidelines. I planted tomatoes, zucchini, sweet peppers, parsley, and basil. My window is a french door to my apartment balcony. It faces S/SE and gets about 2-3 hours of direct sun per day.
Here are the possible problems–I’m hoping that between this list and my pictures, experienced windowfarmers can help me out:
-wrong crops: I chose crops that need more direct sun than they get through my window
-over/under watering: pump currently operating for 15 minutes every 2 hours.
-cold: I sometimes leave the door next to my growing window open to get frech air in my apartment, as it’s been a warm autumn so far. I would estimate temperatures of no lower than 55 F
-mold: I observed mold growing on the surface of one of the grow plugs in the kit
Thanks for the help! Photos of troubled zucchini, tomato, and basil seedlings (left to right) below: