Cyathea australis – A large, evergreen fern with a rough, thick trunk. It grows up to 4 metres high pretty quickly with a spread of 6-8 metres and each frond can reach up to 4 metres long in good conditions! The Cyathea tolerates the sun as long as the soil is moist, but does need a good sheltered site to thrive. Some sources suggest it’s hardier than a Dicksonia Antarctica. It will be hardy to minus 8 degrees centigrade, but be aware that the fronds will get frosted in severe winters, so give the plant protection. Probably the best tree fern for a sunny site with its large evergreen fern and hairy trunk. Plant in a sheltered area or with light shade and add peat when planting or inside in a conservatory.
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