Mike Miller hosts the Garden Hotline. Today's Good Gardening Stroll takes us downtown to Ballpark Stadium, where Mike could only stand to be out in the cold for a little bit... Then it's on to your lawn and garden questions! When building a raised bed, Mike prefers composite lumber. It's easy to over water your potted plants in the wintertime. A little trick to use is to wait until the dirt is dry and starts to pull away from the side of the pot before it needs watered again. Hour 1 of 2.