Dwarf Tree Fern - Blechnaceae Blechnum Gibbum in a pot.

What You Need to Know About the Dwarf Tree Fern – Blechnaceae Blechnum Gibbum

The large, so-called dwarf tree fern from Fiji will tolerate a certain amount of dry air indoors. The fronds are carried in a rosette and can be either sterile or fertile, reaching 3 ft. (90 cm) long x 1 ft. (30 cm) wide. The shiny, green leaflets are slightly drooping. As it grows, a scaly black trunk develops, up to 3 ft. (90 cm).

Size: Height 4 ft. (1.2 m), spread 3 ft. (90 cm).

Light: Indirect sunlight.

Temperature: Warm; preferably above 60°F (15°C).

Moisture: Keep very moist. If the temperature falls below 55°F (12°C), reduce watering to a minimum.

Feeding: Give half-strength liquid fertilizer once a month in spring and summer.

Propagation: Remove offsets, if they are produced; otherwise use spores.

Special needs: To maintain adequate humidity, place the pot on a tray of moist pebbles.