I'm fairly (first time home owner) new at the whole landscaping thing. I've been trying to incorporate larger pots this year on the porch and front of the house. I have one that has double impatiens along with one single and bright blue lobelia. I know that it takes full shade. I try keeping it on my porch as we face West so in the morning it's shaded and cool, in the afternoon and evening it's obviously warmer (Nebraska, zone 5, can reach 95 deg.)in the front of the house but I do keep it in the shade of the porch and water it well. The other two plants are doing great but the doubles, while green, are droopy and the blooms just hang down, though they DO bloom, and don't singe. Is it just the warmth or should I be fertilizing them somehow? The whole thing is potted in Miracle Grow general potting soil. 15 inch resin planter.