Blechnum gibbum – ‘Silver Lady Fern’
If you a looking for dwarf tree fern, Blechnum gibbum or ‘Silver Lady Fern’ could well be it. Used mainly as houseplant outside its native habitat it can be successfully grown in the garden in frost free areas.
Unlike other tree ferns this dwarf variety is reasonably fast growing and the fronds will spread to over a metre in good conditions.
If we look at its native habitat, Fiji, New Caledonia and the Pacific Islands, growing as an under story plant in forested areas we gain an idea of ideal growing conditions, filtered light and humidity, moisture.
Blechnum gibbum Planting conditions
A humus rich moist but well drained soil is essential. Frost free and filtered light. Although Blechnum gibbum ‘Silver Lady’ could be grown indoors good air flow is essential.
Good moisture is essential, the soil can be allowed to dry a little between watering’s, however hot dry conditions are not suitable. We suggest a drip irrigation system if you are growing Blechnum gibbum ‘Silver Lady’ outdoors unless you have a naturally damp position.
Check soil ph, Blechnum gibbum prefers a slightly acid soil.
Try to use tank water or un chlorinated water as much as possible.
Outdoors in the ground usually a top up of well rotted compost and mulch each spring will be adequate. In containers use a slow release general purpose native plant fertilizer.
Landscape ideas for the Silver Lady Fern
Used as a foliage plant, the Silver Lady Fern provides brilliant lush green foliage year round.
Excellent in a container in a shaded position, as Blechnum gibbum ‘Silver Lady’ prefers filtered light it grows well on covered patios and decks, adding a tropical touch to an outdoor setting.
As for height, Blechnum gibbum will reach around 1m (3ft), with a rather thin trunk.