I wouldn't do it until next spring. They almost never do well this time of year, they die much more often, and when they do live it takes longer for them to recover and start growing well again. I tried plantin a 3' Ash last week and watered it. It wiltered in a few hours. If you have to plant them this time of year, wait until you get a real good rain, then replant them in the morning when it's cool and damp. Later, ihookem.