About Pellaea rotundifolia (G.Forst.) Hook.
Pellaea rotundifolia, commonly known as the button fern, is a fern species endemic to New Zealand, where it grows naturally in scrub and forest habitats. It is also widely cultivated as a popular garden plant for hardiness zones 8 and 9, and as a houseplant. It tolerates cool low temperatures, but cannot survive freezing conditions. This is a compact, evergreen fern. Its fronds can reach up to 18 inches (460 mm) in length, and bear more than 30 pairs of round, dark-green, leathery pinnae. Its Latin specific epithet rotundifolia translates to "round-leaved". In cultivation, Pellaea rotundifolia requires acidic, well-drained soil. Unlike most ferns, it does not tolerate the moist, humid conditions that most ferns need, and grows well with minimal watering. This plant has been awarded the Royal Horticultural Society's Award of Garden Merit.