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Page 18
years, lhave used the small size of processed pinebark mini-chips (mininuggets)
and can recommend them as a really good mulch. They are a little on
the expensive side but are well worth the effort. The appearance is neat and the
brownish colour provides a nice contrast with the green leaves of the
Rhododendrons and Azaleas. The root systems of these plants need to be kept
cool and moist with a supply of air at the same time. When pinebark mulch is
used, the exposed surfaces of the chips will be quite warm and dry on a hot
summer day. But if one examines the mulch an inch or two below the surface,
the chips and topsoil will be relatively cool and moist.
The above program of soil fertilization can be modified as
plants yields new information about their cultural requirements.
be pleased to hear from gardeners and nurserymen who may have
suggestions to make about soil fertilization methods for
Azaleas.
Llterature Conrulted
these
will
or
and
Begg, K. '1974. How to care for Rhododendrons and AzaleasHorticultu lnstitute of Ontario. Vineland Station.
;:
Begg, K.S. and Smith, A.W. 1975. Rhododendrons and Azaleas. Publication 45. Ontario
Ministry of Agriculture and Food.
Bowers, C.G. 1960. Rhododendrons and Azaleas, their origins, cultivation and
development. Second edition. Macmillan. New York.
Cox. P. '1973. Dwarf Rhododendrons. Macmillan. New York.
Craig, D.L. 1975. Rhododendrons in the Atlantic provinces. Publication 1303. Revised.
Agriculture Canada.
Edinger, P. (Ed.) 1969. Rhododendrons and Azaleas. Sunset Book. Lane Books. Menlo
Park, California.
Galle, F.C. 1974. Southern Living Azaleas. Oxmoor House. Birmingham, Alabama.
Hancock, L. 1958 (ca.). Rhododendrons in eastern Canada. Woodland Nurseries.
Cooksvile (Mississauga), Ontario.
Krussmann, G. 1970. Rhododendrons, their history, geographical distribution, hybridization
and culture. Translated from German. Ward Lock, London.
La Croix. l.F. 1973. Rhododendrons and Azaleas. David & Charles. Newton Abbot, Great
Britain.
Leach, D.G. 1961. Rhododendrons of the world, and how to grow them. scribner's. New
York.
McGourty, F., Jr. (Ed.). 1971. Handbook on Rhododendrons and their relatives. Brooklyn
Botanic Garden Record, Plants & Gardens, Vol. 27, No. 2.
Schwartz, D. 1975. Rhododendrons, a selected, annotated bibliography. Library of the New
York Botanical Garden. New York.
Street, F. 1954. Hardy Rhododendrons. Collins. London.
Van Veen, T. 1969. Rhododendrons in America. Sweeney, Krist & Dimm, Inc. Portland'
Oregon.
Wyman, D. '1 971. Wyman's gardening encyclopedia. Macmillan. New York. Collier
Macmillan. London.