 When you're watering and you're watching the water roll away from the soil, you've got to do something to keep the water right there on the plant. You can add a little mulch, you can add a little soil. And if you're having trouble getting started... Even if you have to dig a little ditch or an indentation around the base of the plant, just to make a little puddle right over it, that would help tremendously. Luckily, the forecast will be changing a bit this weekend, but the heat is just getting started. In Weymouth, Jim McKay, WBZ Boston's News Radio.