Juania australis at 53º N latitude
Written by David Robinson in 2000 for the European Palm Society, Chamaerops No. 43-44, Autumn Edition 2000 © Karen Foley 2017
this palm, Juania australis, - it
won't survive with you. It doesn't even grow at Tresco in the Isles of Scilly,
but try it anyway. " These were the parting words and friendly challenge from
Chris Bailes, Curator of the Royal Horticultural Society's Gardens at Rosemoor,
I planted the small palm in a sheltered location about 1 metre from a 1.5 metre high wall. The plant gets some morning and evening sun but is partly protected from mid day sun by a 5 metre high Dodonea viscosa 'Purpurea' to the south and from north winds by a 10 metre high self seeded Eucalyptus cordata. Planted in September 1995, the Juania has grown well and has shown no signs of cold or wind damage throughout this period. It is now about 2.5 metres tall with leaves up to 2.2 metres in length.
Although I had been warned that the Juania was rare and difficult to grow, I gave it only the standard treatment afforded to all other trees and shrubs in my garden. The roots at the bottom of the pot were carefully disentangled and spread out in the planting hole, but no fertiliser was applied, either at planting or at any time afterwards. The small plant was kept free from competing weeds, mainly by careful spot treatment with the herbicide glyphosate and the ground was not disturbed to avoid any root injury. No supplementary watering in summer or frost protection in winter was given.
I do not use insecticides or fungicides on any ornamental plants as these are generally unnecessary under our cool, temperate climatic conditions. In any case, the Juania showed no signs of pests or diseases and was completely trouble free.
As can be seen from my web site
www.earlscliffe.com, my garden is situated on a peninsula just north of
Because of the proximity of the sea, summer temperatures are moderate, seldom exceeding 25º C. The absolute maximum recorded since 1969 was 27.5º C in August 1995. Average annual rainfall is a moderate 650 mm spread fairly evenly throughout the year and periods of drought are rare.
The soil is derived from Cambrian shale and quartzite and contains
approximately 25% clay and 4.5% organic matter in the top 8 cm. It is mostly
acid to neutral (pH 5.0 - 6.5) in contrast to the alkalinity of most of
At present Juania australis is growing more vigorously in my garden than any other member of the family Palmae. The Chusan Palm (Trachycarpus fortunei) is normally accepted as the most hardy palm growing in Ireland but its speed of growth is less than that of Juania. I also grow the Mediterranean Fan Palm (Chamaerops humulis) and the Chilean Wine Palm (Jubaea chilensis) but these and other genera, such as Brahea and Butia are slow growing.
[The complete article from Chamaerops No. 43-44, Autumn Edition 2000 can be accessed here]
Addendum (August 2017)
The plant was undamaged by the severe winters of 2010 and 2011 and
The picture of the plant in the article above was taken in 2003. The picture below shows the plant in Sept 2016.
This page was last updated on 02-Sep-2018 .