Behavior of Rhododendron species to low and negative temperature in the Botanical Garden Jibou in 2002-2010.

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.