Hart’s Tongue Fern
Widespread and variable group of rhizomatous ferns, once called spleenwort for alleged medicinal value. These evergreen species resemble one another only in botanical details and in their need for shade and liberal watering. Unlike many other ferns, they need a rest period from late fall to early spring when grown indoors; during that time, reduce watering and withhold fertilizer.Asplenium scolopendrium
Native to Europe, eastern U.S. Odd fern with undivided, strap-shaped leaves 9–18 in. long; forms a clump about 2 ft. wide. Fanciers collect various dwarf, crested, or forked varieties. Needs humus; also add some limestone chips if soil is deficient in calcium. Difficult to grow where water quality is poor.
Striking in woodland or rock gardens and with rhododendrons and azaleas. Durable container plant; grows in a tight crown and can remain in the same pot for years.
Extra-dwarf, bright green variety that grows slowly into a full, rounded shape about 18 in. tall and 2...
Fronds grow to 1–1 1/2 ft. long, making a tight, slowly spreading, foot-high clump. Leaflets are...
Native to Japan, China, and Korea. Twines to 15–30 ft. Grows fast in mild regions, more slowly w...