1 Ornamental Palms
1 Ornamental Palms: Biology and Horticulture T.K. Broschat and M.L. Elliott Fort Lauderdale Research and Education Center University of Florida, Davie, FL 33314, USA D.R. Hodel University of California Cooperative Extension Alhambra, CA 91801, USA ABSTRACT Ornamental palms are important components of tropical, subtropical, and even warm temperate climate landscapes. In colder climates, they are important interiorscape plants and are often a focal point in malls, businesses, and other public areas. As arborescent monocots, palms have a unique morphology and this greatly influences their cultural requirements. Ornamental palms are over- whelmingly seed propagated, with seeds of most species germinating slowly and being intolerant of prolonged storage or cold temperatures. They generally do not have dormancy requirements, but do require high temperatures (30–35°C) for optimum germination. Palms are usually grown in containers prior to trans- planting into a field nursery or landscape. Because of their adventitious root system, large field-grown specimen palms can easily be transplanted. In the landscape, palm health and quality are greatly affected by nutritional deficien- cies, which can reduce their aesthetic value, growth rate, or even cause death. Palm life canCOPYRIGHTED also be shortened by a number of MATERIAL diseases or insect pests, some of which are lethal, have no controls, or have wide host ranges. With the increasing use of palms in the landscape, pathogens and insect pests have moved with the Horticultural Reviews, Volume 42, First Edition. Edited by Jules Janick. 2014 Wiley-Blackwell. Published 2014 by John Wiley & Sons, Inc. 1 2 T.K. BROSCHAT, D.R. HODEL, AND M.L.
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