You should generally try to water once a week and apply an inch when you water. Sometimes, when it's really hot, the grass does better if you split the inch and water on two days. If it's really hot, there has been some recent research that watering for just a few minutes (like 3-5) every day in the afternoon will help, not so much because of the water (too much evaporates and never makes it to the roots), but because the water cools off the lawn. Fine fescues (probably what was in the shade mix) do well with little water, but they suffer in the heat. Watering a lot probably won't help them in the summer. They go dormant and stay that way until it cools off, then they snap back.

Sounds like it may need time to adjust from the repotting. Messing with the roots. Wind and heat sounds like your tree is just stressed from this big change. Keep it in the shade for a few weeks and then acclimate it to the heat and Sun In your area. Keep up with watering if it is in a fast draining mix. Keep it from the wind as well. This will cause it to dry out . Sounds like it is just stressed. Keep in sheltered in a semi shaded area and I'm sure it will perk back up for you. Remember to stake until the branches can hold their own weight. This will prevent any loss and or damage of your branches. I would also stake it so the root ball won't move around in the container. ( keep it from moving In the wind until the roots can grow and it can get acclimated to its new container) Good luck!!! Laura This post was edited by loveplants2 on Wed, Jan 22, 14 at 0:09

If you're not planting them out soon - and at your zone, I assume you are not - I think you want to pot them up. They look like they have grown out of their starting cells. I think you will see improvement when they are in larger containers.

Definitely pinch anything yellow off. You could try watering less. Just keep an eye on it and make adjustments as needed. Is there proper drainage material in the base of the pot? Is the pot sitting directly on the ground? If you can, raise the base off the ground with some pot feet or blocks so the pot may drain freely.