I have a couple potted impatiens, the general kind & new guinea, in pots. The soil is moist & they are outside on the northwest side of my apartment. The leaves are wilted, they have been for awhile now. Yesterday they were wilted, but by evening they perked up. I don't get it, they aren't in the sun, they are well watered, it's been in the 60's-80's, but mostly the lower 70s, why are they wilting? Only thing I can think of is that I gave everything miracle gro & seaweed/fish emulsion mix last week, but none of my other plants are affected. My hanging basket are impatiens & I have a variegated double flowered impatien, & they are just fine. Any clues?