Alphabetical Plant Listing

Dryopteris intermedia (Intermediate Wood Fern)

Intermediate Woodfern, Evergreen Wood-fern, Fancy Wood Fern, Dryopteris austriaca var. intermedia, Dryopteris spinulosa var. concordiana, Dryopteris spinulosa var. intermedia


Making a dramatic statement in the landscape, Dryopteris intermedia (Intermediate Wood Fern) is a vase shaped, evergreen to semi-evergreen fern with large, lacy, upright arching fronds. Oval to narrowly triangular, the glossy dark green fronds are bipinnate-pinnatifid to tripinnate. Each finely dissected blade has 10-15 pairs of narrow lance-shaped pinnae (leaflets). The stipe is covered with light brown scales. Round sori (fruit dots) appear on the leaflet undersides on fertile fronds in early to mid-summer. Native to eastern North America, Intermediate Wood Fern occurs naturally in moist woodland areas, ravines, swamp margins and rocky slopes. A great asset for shaded woodland gardens, it can also be used as an accent plant or in a mass planting.

  • Grows up to 1-3 ft. tall and wide (30-90 cm).
  • A part shade to full shade lover, it is best grown in fertile, humus-rich, consistently moist, well-drained soils. Will grow in rocky soil if moisture requirements are met.
  • This plant is a great choice for shady beds and borders, rock gardens, cottage gardens, woodland gardens or containers.
  • No serious pest or disease problems.
  • Remove faded fronds regularly and divide plants when crowded.
  • Propagate by division in spring
  • Native to eastern North America.

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Requirements

Hardiness 5 – 8
Plant Type Ferns
Plant Family Dryopteris - Ferns
Exposure Partial Sun, Shade
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Fall
Winter
Height 1' – 3' (30cm – 90cm)
Spread 1' – 3' (30cm – 90cm)
Spacing 24" – 36" (60cm – 90cm)
Water Needs Average
Maintenance Low
Soil Type Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy, Evergreen, Semi-Evergreen
Native Plants United States, Midwest, Illinois, Indiana, Iowa, Michigan, Minnesota, Missouri, Ohio, Wisconsin, Northeast, Connecticut, Delaware, Maine, Massachusetts, Maryland, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Southeast, Alabama, Georgia, Kentucky, North Carolina, South Carolina, Tennessee, Virginia, West Virginia
Tolerance Clay Soil, Rabbit
Garden Uses Beds and Borders, Patio and Containers
Garden Styles Gravel and Rock Garden, Informal and Cottage

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Doug MacGrady, Homer Edward Price, Flickr

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 5 – 8
Plant Type Ferns
Plant Family Dryopteris - Ferns
Exposure Partial Sun, Shade
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Fall
Winter
Height 1' – 3' (30cm – 90cm)
Spread 1' – 3' (30cm – 90cm)
Spacing 24" – 36" (60cm – 90cm)
Water Needs Average
Maintenance Low
Soil Type Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy, Evergreen, Semi-Evergreen
Native Plants United States, Midwest, Illinois, Indiana, Iowa, Michigan, Minnesota, Missouri, Ohio, Wisconsin, Northeast, Connecticut, Delaware, Maine, Massachusetts, Maryland, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Southeast, Alabama, Georgia, Kentucky, North Carolina, South Carolina, Tennessee, Virginia, West Virginia
Tolerance Clay Soil, Rabbit
Garden Uses Beds and Borders, Patio and Containers
Garden Styles Gravel and Rock Garden, Informal and Cottage

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