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Some Hardy Ferns For The Garden (Page 3 of 3)
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This article was provided by The Fern Society of Victoria
LEATHER FERN
The Leather fern, Rumohra adiantiformis, is another fern that docs well in the fernery. This is the fern that florists use widely because it lasts well when picked. It is an extremely tough fern. The usual form sold in nurseries originated in South Africa, where they grow on coastal rocks in full sun.
CLUBMOSSES
It is a good idea to get some clubmosses, Lycopodium or Selaginellas, for your fernery. They can be planted in the ground under your ferns, where they will spread and form an attractive groundcover of contrasting foliage, which comple-ments your ferns and helps prevent weeds. There is a nice golden one called Selaginella kraussiana 'Aurea' which spreads quite rapidly, so much so that it can be a pest in a glasshouse but not in a fernery.
TREE FERNS
Treeferns can pose a problem by growing too tall. The best one to grow is Dicksonia antarctica (Soft Treefern). It is slow growing but if it outgrows its situation it can be kept low by cutting off the top, then replanting the top and discarding the base. The best time to do this is in the autumn. Remove almost all of the fronds, and plant the trunk top about 30-40 cms. in the ground. Make sure you keep the trunk well watered at least through the following summer, until a new root system has been established. Dicksonia antarctica is widely available in nurseries as a bare trunk.
There are some species that do not grow very tall, and so can be grown under a roof about 4 metres or so high. One is called "Highland Lace", Cyathea tomentosissima from Papua New Guinea, and there are a couple of prostrate ones from New Zealand.
However if you want to grow Cyathea cooperi, C. brownii, C. medul1aris, C. robusta or many other Cyatheas, you need to have the top of the fernery open unless you are prepared to cut a hole in the roof and let it out! The other option is to grow them out in your garden under tall, evergreen trees where they can get plenty of water.
Many treeferns will take a moderate amount of sun but full sun should be avoided.
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