This section is from the book "A Practical Handbook Of Trees Shrubs Vines And Herbaceous Perennials", by John Kirkegaard. Also available from Amazon: A practical handbook of trees, shrubs, vines and herbaceous perennials.
Botanical Name | English Name | 1 Deciduous 2 Evergreen 3 Vine 4 Herbaceous Perennial | Ultimate Height in feet | Color | Time of Bloom | Remarks |
Rhododendron catawbi-ense | 2 | 6-8 | Lilac-purple | June | 5. A beautiful shrub with glossy green leaves from 3 to 4 inches long; flowers about 1 1/2 inches across in large clusters. This and its numerous hybrid varieties are especially effective as single specimens on the lawn or when massed in large groups. If planted near dark foliaged evergreens, their flowers produce a beautiful contrast. Rhododendrons transplant best in the spring, and thrive best in a place sheltered against dry winds and from the burning sun. They prefer a soil made with peat or leaf mold and sandy loam. It is well to apply an occasional top-dressing of two or three inches of well-decayed stable manure. I n the fall the ground should be covered with leaves, pine-needles or hay to protect from frost. After flowering the young seed-vessels should be carefully removed, and in dry seasons a liberal application of water should be given. The following varieties are the most hardy and satisfactory: Album elegans, blush, changing to white; Atrosan-guineum, blood-red; Blandianum, rose-crimson; Boule de Neige, pure white; Caractacus, purple-crimson; | |
Charles Dickens, dark scarlet; Deli-catissimum, blush or white, edged with pink; Everestianum, rose-lilac, spotted red; Gen. Grant, pink-crimson; Giganteum, bright rose; Glori-osum, white; H. H. Hunnewell, rich crimson; H. W. Sargent, crimson; Lady Armstrong, pale rose; Lady Clermont, deep red; Mrs. Milner, crimson; Parson's Gloriosum, pale lavender; Roseum elegans, vivid rose. | ||||||
Rhododendron ferrugineum | Alpine Rose | 4 | 2 | Carmine | July | S. A dwarf, compact shrub with dull green leaves about 1 1/2 inches long, and showy clusters of flowers. Good for bordering beds of hybrid Rhododendrons or for the rockery. A. F. |
Rhododendron hirsu-tum | 4 | 2 | Deep red | July | S. In habit like the preceding. Leaves dull green and rough. A. F. | |
Rhododendron puncta-tum | 4 | 3-4 | Pale rose | July | S. Spreading in growth, with slender, recurving branches. Leaves dull green, about 2 1/2 inches long. Flowers in clusters, individual flowers about 1 inch across. Good among hybrid Rhododendrons or Mountain Laurel. B. C. E. F. | |
Rhododendron maximum | Giant Bay or Great Laurel | 4 | 8-10 | Rose | June & July | 5. Spreading in growth. Leaves dull green, 4 to 6 inches long. Flowers about 1 1/2 inches across, in dense clusters. Very hardy and used extensively in park planting. Effec- |
 
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