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Hart's-tongue Fern
🏠 Indoor

Aspleniaceae

Hart's-tongue Fern — The Evergreen Shade Fern for Woodland Gardens

Asplenium scolopendrium

Easy ☀ïļ Low light ðŸū Pet safe

Hart's-tongue fern thrives in moist, shaded conditions with high humidity and alkaline, well-drained soil. Water regularly to keep soil moist but never waterlogged. Avoid direct sun. Suitable for both indoors and outdoors in shaded spots.

💧 Watering

Every 7 days

☀ïļ Light

Low light

ðŸŒĄïļ Temperature

-15° - 25°C

ðŸ’Ļ Humidity

60% - 80%

Categories

What is Hart's-tongue Fern?

Hart's-tongue Fern (Asplenium scolopendrium) is a easy-care plant from the Aspleniaceae family. Asplenium scolopendrium, commonly known as the hart's-tongue fern, is an elegant evergreen fern native to moist, shady woodlands and rocky limestone habitats across Europe, Asia, and parts of North America. It produces distinctive undivided, strap-shaped, glossy bright-green fronds unlike most other...

Hart's-tongue Fern grows up to 60cm, spread of 60cm, watering every 7 days, -15°C – 25°C, 60–80% humidity. It is suitable for indoor environments and safe for pets.

Unlike many tropical plants, Hart's-tongue Fern tolerates watering mistakes. Best for beginners. Unlike many popular species, Hart's-tongue Fern is safe to keep around pets. Without adequate drainage, root rot can develop within 14 days.

How to Care for Hart's-tongue Fern?

TLDR: Hart's-tongue Fern needs Low light, watering every 7 days, and temperatures between -15-25°C with 60-80% humidity.

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How Often Should You Water Hart's-tongue Fern?

Water every 7 days or when the top 1–2 cm of soil starts to dry. Always water at the base — never wet the fronds — to prevent crown rot. Reduce watering in winter.

☀ïļ

How Much Light Does Hart's-tongue Fern Need?

Place in partial to full shade. Avoid more than 3 hours of direct sunlight per day. North- or east-facing spots and woodland settings are ideal.

ðŸŠī

What Is the Best Soil for Hart's-tongue Fern?

Use moist, humus-rich, well-draining loamy soil with an alkaline to neutral pH (6.5–7.5). Limestone-based soils are ideal as this fern naturally grows on calcareous rock.

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What Pot Should You Use for Hart's-tongue Fern?

Terracotta or ceramic pot with drainage holes, or a woodland-style container with added limestone grit for good drainage

Care Schedule

ðŸŒą

Fertilize

Every 14 days

ðŸ’Ķ

Misting

Every 3 days

🔄

Rotate

Every 7 days

ðŸŠī

Repot

Every 365 days

What Is Hart's-tongue Fern and Where Does It Come From?

Asplenium scolopendrium, commonly known as the hart's-tongue fern, is an elegant evergreen fern native to moist, shady woodlands and rocky limestone habitats across Europe, Asia, and parts of North America. It produces distinctive undivided, strap-shaped, glossy bright-green fronds unlike most other ferns, giving it a unique tropical appearance in temperate gardens.

How Big Does Hart's-tongue Fern Grow?

TLDR: Hart's-tongue Fern can reach up to 60cm tall with Slow growth rate.

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Max height

60cm

↔ïļ

Spread

60cm

📈

Growth rate

Slow

🍃

Foliage

Evergreen

Plant Uses

🌚

Ornamental

Great for decoration

ðŸŒŋ

Ground Cover

Soil coverage

Is your plant showing symptoms?

Click on the symptom to discover possible causes:

What Diseases Commonly Affect Hart's-tongue Fern?

TLDR: Hart's-tongue Fern is susceptible to 7 known diseases. Monitor regularly for early detection.

Slugs and Snails

Medium

Slugs and snails are mollusks that feed on plant tissue, causing irregular holes in leaves and damage to young seedlings. They are most active at night and in moist conditions, leaving characteristic silvery slime trails. These pests can quickly devastate gardens, especially during wet seasons.

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Root Rot

High

Root rot is a serious fungal disease that affects the root system of plants, causing them to decay and die. It is primarily caused by overwatering, poor drainage, or soil-borne fungi such as Pythium, Phytophthora, Rhizoctonia, and Fusarium. The disease thrives in waterlogged conditions where roots are deprived of oxygen, making them susceptible to fungal infection.

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Overwatering

Medium

Overwatering occurs when plants receive too much water, depriving roots of oxygen and causing root rot. This environmental stress is one of the most common causes of houseplant death, as waterlogged soil prevents roots from breathing and functioning properly.

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Low Humidity Stress

Medium

Low humidity stress occurs when indoor air becomes too dry, causing plants to lose moisture faster than they can absorb it through their roots. This is especially common during winter heating periods, near radiators and heating vents, or in air-conditioned spaces. Tropical plants are particularly susceptible to low humidity damage.

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Fun Facts

ðŸ’Ą

Unlike most ferns, hart's-tongue fern has undivided fronds, making it look almost like a tropical plant in temperate woodlands.

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It earned the Royal Horticultural Society Award of Garden Merit for its exceptional garden value.

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Deer and rabbit resistant — making it a low-maintenance choice for wildlife gardens.

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The parallel rows of brown spore cases (sori) on the underside of mature fronds resemble a centipede — hence the species name "scolopendrium" (from the Greek word for centipede).

ðŸ’Ą

Grows naturally on limestone cliffs, castle walls, and old wells across Europe.

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Sources & References

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