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Hart's Tongue Fern

Asplenium scolopendrium

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Hart's Tongue Fern (Asplenium scolopendrium) at Green Thumb Nursery

Hart's Tongue Fern

Hart's Tongue Fern

(Photo courtesy of NetPS Plant Finder)

Height:  24 inches

Spacing:  18 inches

Sunlight:  partial shade  full shade 

Hardiness Zone:  5b

Other Names:  Phyllitis scolopendrium

Description:

This variety is unusual in that it has simple, undivided fronds that are up to 2 feet long; yellowish and stunted in full sun; luxurious green foliage is a welcome addition to the garden as a groundcover

Ornamental Features

Hart's Tongue Fern is primarily valued in the garden for its ornamental upright and spreading habit of growth. Its attractive glossy narrow leaves remain green in color throughout the year.

Landscape Attributes

Hart's Tongue Fern is an herbaceous evergreen fern with an upright spreading habit of growth. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

This is a relatively low maintenance plant, and is best cleaned up in early spring before it resumes active growth for the season. It has no significant negative characteristics.

Hart's Tongue Fern is recommended for the following landscape applications;

  • Mass Planting
  • Border Edging
  • General Garden Use
  • Container Planting

Planting & Growing

Hart's Tongue Fern will grow to be about 24 inches tall at maturity, with a spread of 24 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 18 inches apart. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 10 years. As an evegreen perennial, this plant will typically keep its form and foliage year-round.

This plant does best in partial shade to full shade. Keep it well away from hot, dry locations that receive direct afternoon sun or which get reflected sunlight, such as against the south side of a white wall. It requires an evenly moist well-drained soil for optimal growth, but will die in standing water. It may require supplemental watering during periods of drought or extended heat. It is not particular as to soil pH, but grows best in rich soils. It is somewhat tolerant of urban pollution. This species is not originally from North America. It can be propagated by division.

Hart's Tongue Fern is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. With its upright habit of growth, it is best suited for use as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. It is even sizeable enough that it can be grown alone in a suitable container. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Edging  Garden  Container 
Applications
Foliage Color  Texture  Plant Form 
Ornamental Features