Dying impatients in a rail box
Hi. I am new to this forum and I am an amateur! I planted impatients in 3 rail boxes and one box is thriving, in one box all of the flowers in the middle of the box "crumble" after several days and in the other box there is a smaller section that has a "dead" spot. In all of the other spots they are doing well, though some seem to be growin "flat" instead of up. I used soil I had from last year(left out over winter) mixed with new miracle grow moisture control and I lined the bottom with pebbles and some lava rocks when I ran out of pebbles (I was told this helps drainage) In my one big pot planter, the double impatients I planted also wilted and crumbled after a week (no rockes, last year's soil and the pot is very large). When I replanted more in the dead spots, they also died. I also use miracle grow flower bloom food in the water about once a week.