Cystopteris protrusaFragile fern
科:鳞毛蕨科
Family:Dryopteridaceae
属:冷蕨属
common name:Fragile fern
introduce:Plant Type: Fern
Family: Dryopteridaceae
Missouri Native: Yes
Native Range: North America
Height: 0.5 to 1.5 feet
Spread: 0.5 to 1.5 feet
Bloom Time: Non-flowering
Bloom Color: Non-flowering
Sun: Part shade to full shade
Water: Medium moisture
Maintenance: Low
General Culture:
Easily grown in loose, organically rich, medium wet, well-drained soils in part shade to full shade. Add lime to acidic soils.
Noteworthy Characteristics:
Fragile fern is a small, somewhat airy, deciduous, Missouri native fern which occurs in rich woods, slopes, valleys and along streams throughout the State. Typically grows 6-15" tall. Features finely cut, bi-pinnate to tri-pinnate, erect to arching fronds. Fronds have brittle stipes (central stems) which easily break, hence the common name. A rhizomatous plant which emerges in very early spring and produces new fronds throughout the spring and summer. Very similar in appearance to Woodsia obtusa (M890).
Problems:
No serious insect or disease problems.
Uses:
Excellent for shaded areas of rock gardens. Also effective in woodland gardens, native plant gardens, shaded border fronts or on slopes or banks.
