James: I used to do that as well - water when wilt. But it's only been two days, watered on Saturday. I fear over-watering as I've heard that's bad news.
But I'll try anything, and give watering every day a shot, especially since it's been hot here in NJ.
ChrisK - I think you're right - other pictures I've seen of Chicago Hardy look similar - Thanks!
Jdsfrance: - I like the idea of shading the pot. In conjuction with more watering, I think I'll put a cardboard box around the pot. To waterproof, I'll use the space-age "plastic wrap" from the kitchen. Not the prettiest solution, but fits in my budget.