Skip to main content. The Royal Horticultural Society is the UK’s leading gardening charity. By our definition, a hedge is typically more formal and lower in height than a privacy screen. Eucalyptus gunnii is the best known species and the hardiest. 99 £16.99 £16.99 $(document).ready(function() { Eucalyptus gunnii. see all. They are a fascinating, beautiful, versatile, and highly evolved group of trees and our mission is to help people select the right Eucalyptus tree for them and their garden." Quick facts. This form of the popular eucalyptus is a magnificent tree with flaking bark in shades of grey, cream, green and brown. Originating from Australia's southern coast, Eucalyptus Gunnii is an extremely hardy and versatile evergreen variety which can be grown as a fabulous specimen tree on its own or used as a great screening plant to be planted in borders, where their subtle fragrance to be … (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ if ( typeof(jQuery) == 'undefined' ) document.write('