The P.J.M. rhododendron hybrids grow 3 to 6 feet tall and have a rounded habit. The small, evergreen dark-green leaves are attractive year-round with fall color of dark burgundy to end the season. Use the hybrid P.J.M. rhododendrons in the shrub border or as foundation plants. Flowers appear in May in northern Illinois, earlier in southern Illinois. These are some of the easiest rhododendrons to grow in the Chicago area since they are among the hardiest and most tolerant of different soil types. The evergreen leaves turn dark burgundy in fall, and on very cold days in winter they roll to protect themselves from the elements. Actually a group of hybrids, these plants produce clusters of lovely lavender-pink flowers, borne on the tips of each branch, in spring. Among the hardiest of rhododendrons.