help me pick a companion plant
I need some help in choosing a companion plant for a small raised garden bed. It's south facing but under an eave, so it only receives morning sun and tends to get rather dry since the rains don't reach it and I'm a bit neglectful in the summer with watering. I've just planted a Hebe "Great Orne" in the center (it's just a small 2-gallon size now but I know it will get much larger) and there is a small butterfly bush to one side. I need to find something to place on the other side of the hebe that will like the water and light conditions and won't get too large, i.e. 3' or so. Any ideas? Thanks!