Growing tree ferns
There are several tree ferns available in Ireland, but it's probably best to start out with Dicksonia antarctica, which tolerates a wider range of conditions than most.
Choose an area that is sheltered, and, preferably, in dappled shade. Good drainage is important so that the roots do not suffer in a cold, wet winter. If your soil is heavy, dig in some coarse grit. Add lots of organic matter (such as leaf mould and garden compost) to the planting hole. If you use farmyard manure, make sure it is rotted to a crumbly consistency.
After planting, cover the soil with bark, wood mulch or leaf mould to help retain moisture, and to mimic the make-up of a forest floor.
Keep the fern moist during the growing season, pouring the water in through the top of the plant (the crown), so that it runs down the trunk. If the weather is very hot, hose the whole plant down at least once a day.
Don't give any water in winter, and if yours is a very frosty area, stuff the crown with straw and dried leaves (in its natural habitat leaf-fall from trees overhead fills the tree fern's crown) and cover with horticultural fleece. Leave the dead fronds on the plant, as these help to insulate the trunk and keep it moist. Dicksonia antarctica is hardy down to about minus 5 degrees Centigrade.
Tree ferns may be bought from Dicksonia Direct at www.dicksonia.com or 087-7776666