While you have the potting mix out to start those long-season seeds like wax begonias, pansies, and onions, take some time to repot your houseplants. This month changes in sunlight levels are significant. The sun is moving higher in the sky and sunlight is coming through the windows at a sharper angle. Our houseplants will notice the change and it will trigger the start of active growth.

Getting a plant into fresh soil before it is stimulated into growth will help keep it healthy. If it is pot-bound, then increase the size of the container. Signs of a plant being pot-bound...