Finish up transplanting. May is your last chance to do any transplanting before the summer heat sets in. Be sure to keep all newly planted plants watered sufficiently.
Stay on top of blossom removal. Deadhead perennial flowers to encourage more blooms into the upcoming summer.
Go on pest patrol. Insect populations can peak in May, so keep an eye on your garden plants for signs of pest damage. Take appropriate measures to remove the offenders, or use organic methods to get the problem under control.
Karen Beaty is a horticulturalist at the Lady Bird Johnson Wildflower Center in Austin, Texas.
Get our latest tips, how-to articles, and instructional videos sent to your inbox.