Marsh Fern

Thelypteris palustris | Also known as: Eastern Marsh Fern | Rating: 1 votes | Print / Pdf

Finding groundcover for boggy spots in heavily shaded areas can be tricky, but thelypteris palustris is the ideal solution. With the common name, the marsh fern, it obviously thrives in very moist conditions. Its foliage looks similar to that of other members of the thelypteris genus, with pale green fronds, each featuring 25 pairs of lance-shaped pinnae. A rapid spreader, it can quickly cover relatively large areas, and so is especially suited to the role of under-planting or groundcover in moist woodland areas. The marsh fern dislikes dry or submerged locations, but thrives in slightly acidic, loamy soils. Pruning by cutting back its rhizomes is necessary to contain its spread.

Rate it:
Known dangers?
  • no
Height [m]
  • 0.6
Spread [m]
  • 1
Dominant flower colour
  • Inconspicuous or absent
Flower Fragrance
  • No, neutral please
Foliage in spring
  • Green
Foliage in summer
  • Green
Foliage in Autumn
  • Green
Propagation methods
  • division
Growth habit
  • Creeping
Hardiness zone
  • Z5-8
Heat zone
  • H8-5
Winter temperatures [°C]
  • -29 - -7
Heat days
  • 30 - 120
Sun requirements
  • Full sun
  • Partial shade
Standard category
  • Grasses, ferns & bamboo
  • Ferns
Grown for
  • Ornamental Foliage
Creative category
  • Kid Approved
  • For Beginners
  • Pond plants
Garden type
  • Bog garden
  • Pond
Garden spaces
  • Borders
Gardening expertise
  • beginner
Time to reach full size
  • 2 to 5 years