Behavior of Rhododendron Species to Low and Negative Temperature in the Botanical Garden Jibou in 2002-2010

  • Marin CAPRAR Biological Research Center, Botanical Garden ,,Vasile Fati” Jibou, Parcului Street, no.14, 455200 Jibou, Romania University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Faculty of Horticulture, Manastur Street, no 3-5, 4000472 Cluj-Napoca
  • Maria CANTOR University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Faculty of Horticulture, Manastur Street, no 3-5, 4000472 Cluj-Napoca, Romania;
  • Cosmin SICORA Biological Research Center, Botanical Garden ,,Vasile Fati” Jibou, Parcului Street, no.14, 455200 Jibou, Romania;

Abstract

Rhododendrons and azaleas are more exacting in their cultural requirements than many commonly grown plants and so will not readily grow in every garden. Wherever successfully grown, rhododendrons are without equal as landscape plants. The research initiated in the Botanical Garden Jibou in 2002-2010, will help in the selection and propagation of ornamental and tolerant to low temperatures representatives of species, suitable for cultivation in Northwestern Romania. This paper presents the behavior in our climatic conditions of 27 Rhododendron species received from botanical gardens and arboretums, native from different areas.