Hi there! I am a new homeowner and a very new gardener. I planted some New Guinea Impatiens along the front of my house about 1 1/2 weeks ago. That area gets A LOT of afternoon sun. I've been watering them in the morning just using a light spray from the garden hose. We had a lot of rain the week after I planted and most of them have started to bloom, but it' been really hot the past few days and I've noticed that the leaves and flowers seem wilted by the late afternoon. Should I water them more? Also, some of the leaves have turned yellowish and brownish in spots and look dead. What is the best way to remove them to keep the rest of the plant healthy? When I initally planted them I used miracle grow. How often do I fertilize and what is the best way to do it? I am complete clueless and really appreciate any help. Thanks