This section is from the book "The Gardener's Monthly And Horticulturist V24", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
There is care required in selecting Rhododendrons as regards hardiness. The garden kinds are hybrids between R. catawbiense, R. maximum and R. ponticum. Those which retain much of the constitution of the last named usually get killed in American winters.
Another feature, not often noted, and attention to which would give more interest, is the selections of kinds as regards a succession of flowers. By due regard to this the Rhododendron season may be made to cover six weeks. Of well known hardy kinds one might take Chancellor for an early kind ; Everestianum for a medium and Cyaneum for a late purple and Oculatum for a late white. Do our readers know of earlier or later ones than these?