PLANT FINDER
 
perennial

Robust Male Fern

Dryopteris filix-mas 'Undulata Robusta'

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Robust Male Fern (Dryopteris filix-mas 'Undulata Robusta') at Cal's Market & Garden Center

Robust Male Fern in spring

Robust Male Fern in spring

(Photo courtesy of NetPS Plant Finder)

Height:  3 feet

Spread:  3 feet

Sunlight:  partial shade  full shade 

Hardiness Zone:  4a

Other Names:  Common Male Fern, D. complexa

Description:

Graceful, arching fronds with wavy margins, a vigorous grower; attractive shaggy fiddleheads unfurl in spring; keep evenly moist, provides habitat and shelter for birds and bees

Ornamental Features

Robust Male Fern's tiny ferny compound leaves remain green in color throughout the year. Neither the flowers nor the fruit are ornamentally significant.

Landscape Attributes

Robust Male Fern is an herbaceous evergreen perennial with a shapely form and gracefully arching foliage. 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.

Robust Male Fern is recommended for the following landscape applications;

  • Mass Planting
  • General Garden Use
  • Naturalizing And Woodland Gardens

Planting & Growing

Robust Male Fern will grow to be about 3 feet tall at maturity, with a spread of 3 feet. 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 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. Consider applying a thick mulch around the root zone over the growing season to conserve soil moisture. This is a selection of a native North American species, 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; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

 
 
Hardiness Zone Plant Height Minimum Sunlight Soil pH Preference
Characteristics
Massing  Garden  Naturalizing 
Applications
Texture  Plant Form 
Ornamental Features

LOCATION

6403 Egan Drive
Savage, Minnesota 55378
Phone: 952-447-5215
Email:
info@calsmarket.com

OPENING HOURS

Monday – Friday: 9 AM – 6 PM 
Saturday: 9 AM – 5 PM (Closed 7/4)
Sunday 10AM – 5 PM
Special hours Wednesday 9AM-10AM for those over 65 years of age or immune-compromised.

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