Thick Stemmed Wood Fern
Dryopteris crassirhizoma
Height: 4 feet
Spread: 30 inches
Sunlight:
Hardiness Zone: 4b
Other Names: Crown Wood Fern, syn. Dryopteris buschiana
Description:
A semi-evergreen fern with an upright, vase shaped form; noted for having a large woody base, covered with brown scales; striking sea-green fronds form a symmetrical rosette; keep evenly moist; an excellent groundcover for shady, wooded areas
Ornamental Features
Thick Stemmed Wood Fern is primarily valued in the landscape or garden for its interesting and distinctive form. Its attractive ferny bipinnately compound leaves remain bluish-green in color throughout the year.
Landscape Attributes
Thick Stemmed Wood Fern is a dense herbaceous evergreen fern with an indistinguished habit of growth. It brings an extremely fine and delicate texture to the garden composition and should be used to full effect.
This is a relatively low maintenance plant, and should be cut back in late fall in preparation for winter. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. It has no significant negative characteristics.
Thick Stemmed Wood Fern is recommended for the following landscape applications;
Planting & Growing
Thick Stemmed Wood Fern will grow to be about 4 feet tall at maturity, with a spread of 30 inches. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 15 years. As an evegreen perennial, this plant will typically keep its form and foliage year-round. As this plant tends to go dormant in summer, it is best interplanted with late-season bloomers to hide the dying foliage.
This plant does best in partial shade to shade. It prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. It is particular about its soil conditions, with a strong preference for rich, acidic soils. It is somewhat tolerant of urban pollution, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone over the growing season to conserve soil moisture. This species is not originally from North America, and parts of it are known to be toxic to humans and animals, so care should be exercised in planting it around children and pets. It can be propagated by division.