A species that is always wilting might not be the best choice for your climate or watering style;

But even in the best of conditions, it can be difficult to judge how much moisture a plant needs until it shows signs of stress: leaf drop, wilting, brown edges.

For that on blistering summer, the ground moisture was just right, planting early allowed pollination before heat withered the tops, and the lack of rain spared the standing corn from floods.