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Hart's-tongue Fern

Asplenium scolopendrium

Also listed as Phyllitis scolopendrium, Scolopendrium officinale

Also known as Hart's-tongue

herbaceous⛅ part shade💧💧 moderate water❄ Hardy: Zone 5a – Zone 9b

Climate Match for your location

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Hart's-tongue fern is a distinctive evergreen fern with long, undivided, strap-like fronds that resemble a deer's tongue. It thrives in moist, shaded woodland conditions and makes an excellent accent plant for shade gardens and rock crevices.

Why grow it

Hart's-tongue fern offers an unusual texture among shade ferns, with its simple, undivided fronds standing apart from the more finely dissected forms common in woodland gardens. Unlike many ferns that require consistent moisture, this species tolerates drier conditions once established, making it useful for transition zones between wet and moderate shade. Its evergreen habit provides winter structure where deciduous ferns fade, and its compact growth suits confined spaces like rock crevices and stone walls where larger ferns would overwhelm.

Watch out for

This fern prefers neutral to slightly alkaline soil and may struggle in acidic conditions, requiring a soil amendment adjustment in regions with naturally low pH. Excessive summer heat and direct sun stress the fronds even in partial shade, so site selection matters more than with some other shade ferns. While generally hardy in temperate regions, performance declines in hot, humid climates where fungal frond spotting becomes more frequent.

Overview

Form
Upright
Growth Rate
slow
Size
1–2.5′ tall × 1–2′ wide
Dormancy
evergreen
Family
Aspleniaceae
Medicinal

Native to the United States

Native Range

Europe, western Asia, and North Africa

Native to: Alabama, Maryland, Michigan, New Jersey, New York, Tennessee

Seasonality

Season of Interest

SpringSummerFallWinter

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Companion Planting

Plants well with