Hart's Tongue Fern vs Licorice Plant Plant Comparison

Compare these two plants side by side — care needs, key differences, and which is right for your home.

Hart's Tongue Fern

Hart's Tongue Fern

Asplenium scolopendrium

VS
Licorice Plant

Licorice Plant

Glycyrrhiza glabra

Hart's Tongue Fern

Hart's Tongue Fern

Asplenium scolopendrium

Hart's Tongue Fern is an evergreen fern characterized by its simple, strap-shaped fronds. These fronds, resembling a deer's tongue, are glossy green and have a leathery texture. It's primarily an outdoor plant, thriving in cool, damp, shaded environments like woodlands and limestone cliffs. While it can be grown indoors, it requires specific conditions to mimic its natural habitat. People grow it for its unique foliage and architectural interest in shaded gardens or as a curiosity indoors.

Aspleniaceae Europe, eastern North America, and parts of Asia
✨ Features: Unique foliage, air purification (though not extensively studied)
📖 Read Complete Hart's Tongue Fern Guide
Licorice Plant

Licorice Plant

Glycyrrhiza glabra

Glycyrrhiza glabra, commonly known as licorice, is a perennial herbaceous plant that grows to about 1 meter (3 feet) tall. It features pinnate leaves and pea-like flowers, typically purple to pale blue. The plant is primarily cultivated for its rhizomes and roots, which contain glycyrrhizin, a compound responsible for its characteristic sweet flavor. Licorice is mainly grown outdoors in well-drained soil and full sun. While it can be attempted indoors, it's challenging to replicate its ideal growing conditions, and it may not thrive.

Fabaceae Southern Europe and parts of Asia
✨ Features: Roots contain glycyrrhizin, a compound used as a flavoring agent and in traditional medicine.
📖 Read Complete Licorice Plant Guide

Quick Plant Comparison

Feature Hart's Tongue Fern Licorice Plant
Light Partial to full shade. Avoid direct sunlight. Full sun (at least 6-8 hours of direct sunlight daily)
Watering Every 5-7 days, depending on humidity and temperature Every 5-7 days during the growing season, less frequently in winter.
Humidity 60-80% 40-60%
Temperature 13-18°C 15-27°C
Care Level Moderate Expert
Growth Rate Slow Moderate
Max Height 30-60 cm 0.5-1 meter (indoors, likely smaller)
Pet Safety ✅ Safe ❌ Toxic To Pets
Soil Well-draining, humus-rich soil. A mix of peat moss, perlite, and garden soil works well. Well-drained loamy soil
Beginner Friendly With Caution ❌ No
Weekly Maintenance 10 minutes weekly 30 minutes weekly (primarily for watering, weeding, and pest control).

🔬 Botanical Information — Comparing These Plants

Hart's Tongue Fern

Scientific Name Asplenium scolopendrium
Family Aspleniaceae
Native To Europe, eastern North America, and parts of Asia
Also Known As Hart's Tongue Fern, Hart's-tongue Fern
Leaves The leaves, or fronds, are simple, undivided, and strap-shaped, typically 15-45 cm long and 3-6 cm wide. They are a glossy, bright green color with a leathery texture and have slightly wavy edges. The underside of the fronds features rows of sori (spore-producing structures).
Flowers Ferns do not flower. They reproduce via spores.

Licorice Plant

Scientific Name Glycyrrhiza glabra
Family Fabaceae
Native To Southern Europe and parts of Asia
Also Known As Licorice, Liquorice
Leaves The leaves are pinnately compound, typically consisting of 9-17 leaflets. Each leaflet is oval to lance-shaped, with a smooth margin and a slightly sticky texture. The leaves are generally green in color.
Flowers Licorice produces pea-like flowers that are typically purple to pale blue. Flowering usually occurs in the summer months. It is unlikely to flower indoors due to insufficient light.

📏 Size & Growth — Plant Comparison

Hart's Tongue Fern

Height 30-60 cm
Spread 30-45 cm
Growth Rate Slow
Growth Pattern It grows in a clumping habit, with fronds emerging from a central rhizome. It does not spread aggressively.

Licorice Plant

Height 0.5-1 meter (indoors, likely smaller)
Spread Spreads via rhizomes, potentially aggressive outdoors
Growth Rate Moderate
Growth Pattern Glycyrrhiza glabra grows as an upright herbaceous perennial. It spreads via rhizomes, which can lead to the formation of dense patches if not contained.

🌱 Propagation — Comparing Plant Growth

Hart's Tongue Fern

Methods: Spores, Division

Difficulty: Moderate

Tips: Spores require a sterile environment and high humidity to germinate. Division is best done in spring, separating the rhizomes carefully.

Licorice Plant

Methods: Seed, Rhizome division, Root cuttings

Difficulty: Moderate

Tips: For rhizome division, separate rhizomes in early spring and plant them in well-drained soil. Root cuttings should be taken in late fall or early winter and planted horizontally.

✨ Benefits & Features — Comparing Plant Value

Hart's Tongue Fern

The Hart's Tongue Fern is unique due to its undivided, strap-shaped fronds, which are unlike the typical divided fronds of most ferns. The sori are arranged in neat rows on the underside of the fronds, adding to its distinctive appearance.

  • ✓ Adds unique texture and visual interest to shaded areas.
  • ✓ Non-toxic to pets and children.
  • ✓ Can help improve humidity levels in a small area.
  • ✓ Offers a calming and natural aesthetic.
  • ✓ Relatively low-maintenance once established in the right conditions.
  • 🌬️ NASA-verified air purifier
  • 🐾 Pet Safe

Licorice Plant

The roots of Glycyrrhiza glabra contain glycyrrhizin, a compound that is significantly sweeter than sugar. This plant has a long history of use in both culinary and traditional medicine.

  • ✓ Provides a unique flavoring agent for culinary uses.
  • ✓ Has potential medicinal properties (consult a healthcare professional).
  • ✓ Adds visual interest to a garden with its foliage and flowers.
  • ✓ Can be a rewarding challenge for experienced gardeners.
  • ✓ Supports biodiversity in a garden ecosystem.
  • ⚠️ Toxic to pets

📅 Maintenance Schedule — Plant Care Comparison

Hart's Tongue Fern

Repotting Every 2-3 years, or when the plant becomes root-bound.
Pruning Remove any dead or damaged fronds at the base of the plant.
Fertilizing Liquid fern fertilizer diluted to half strength, every 4-6 weeks during the growing season (spring and summer).
Seasonal Care Reduce watering in winter as growth slows. Increase humidity during dry winter months. In summer, ensure adequate shade to prevent scorching.

Licorice Plant

Repotting Not typically grown indoors, but if in a container, repot annually in spring to accommodate rhizome growth.
Pruning Prune back stems to encourage bushier growth and remove any dead or yellowing foliage.
Fertilizing Balanced liquid fertilizer (10-10-10) diluted to half strength, every 4-6 weeks during the growing season.
Seasonal Care In winter, reduce watering and protect from frost. In summer, ensure adequate sunlight and water regularly. Dormancy occurs during winter.

🌞 Light Requirements

Hart's Tongue Fern

Partial to full shade. Avoid direct sunlight.

Low light tolerant: ✅ Yes

Licorice Plant

Full sun (at least 6-8 hours of direct sunlight daily)

Low light tolerant: ❌ No

💧 Watering Needs

Hart's Tongue Fern

Keep the soil consistently moist but not waterlogged. Water when the top inch of soil feels slightly dry. Overwatering can lead to root rot, while underwatering will cause the fronds to brown and crisp.

Licorice Plant

Water deeply when the top inch of soil feels dry to the touch. Avoid overwatering, which can lead to root rot. Signs of overwatering include yellowing leaves and a musty smell. Underwatering is indicated by wilting and dry, crispy leaves.

🌡️ Temperature & Humidity

Hart's Tongue Fern

Temperature: 13-18°C

Humidity: 60-80%

Licorice Plant

Temperature: 15-27°C

Humidity: 40-60%

🤔 Which Plant Is Right For You?

Hart's Tongue Fern

Hart's Tongue Fern

Asplenium scolopendrium
Care: Moderate Time: 10 minutes weekly Beginner: With-caution

Experienced plant enthusiasts who can provide the specific environmental conditions required for healthy growth.

✅ Choose This Plant If...

  • You appreciate unique foliage and architectural plants.
  • You have a shaded, humid environment in your home or garden.
  • You are willing to provide consistent moisture and humidity.
  • You enjoy a plant that adds a touch of woodland charm.
  • You are looking for a non-toxic plant for a home with pets.

❌ Skip This Plant If...

  • You have a dry indoor environment.
  • You tend to overwater plants.
  • You don't have a shaded location.
  • You are a beginner plant owner.
📍 Ideal Location: Bathroom, north-facing window, terrarium
🎨 Style: Woodland, Cottagecore, Naturalistic
🏠 Apartment Friendly: Limited
🌬️ Air Purifying: Yes (NASA verified)
⚠️ According to multiple sources, including the ASPCA, Asplenium species are generally considered non-toxic to dogs, cats, and horses. However, it's always best to prevent pets from consuming any plant material.
Licorice Plant

Licorice Plant

Glycyrrhiza glabra
Care: Expert Time: 30 minutes weekly (primarily for watering, weeding, and pest control). Beginner: No

Experienced gardeners who want to grow licorice outdoors for its roots, understanding its toxicity to pets.

✅ Choose This Plant If...

  • You have a sunny outdoor garden space.
  • You are interested in harvesting licorice root for culinary or medicinal purposes.
  • You are an experienced gardener looking for a unique plant to grow.
  • You understand the plant's toxicity to pets and can keep it away from them.
  • You are prepared to provide the specific care this plant needs to thrive.

❌ Skip This Plant If...

  • You have pets that might ingest the plant.
  • You lack a sunny outdoor space.
  • You are a beginner gardener.
  • You are looking for a low-maintenance indoor plant.
  • You are not prepared to manage the plant's potential for rhizomatous spread.
📍 Ideal Location: Sunny outdoor garden or greenhouse.
🎨 Style: Cottage garden, Herb garden
🏠 Apartment Friendly: No
⚠️ Licorice contains glycyrrhizin, which is toxic to dogs, cats, and horses. Symptoms include increased thirst and urination, high blood pressure, and potentially edema (fluid retention). All parts of the plant are potentially toxic, but the roots are the most concentrated source of glycyrrhizin.

🎯 Quick Verdict

Best for Beginners Neither ideal
Pet Friendly Hart's Tongue Fern ✓
Less Maintenance Similar effort
Apartment Friendly Check space

⚡ Key Differences Between These Plants

🎯

Hart's Tongue Fern is rated Moderate care level, while Licorice Plant is Expert.

📈

Hart's Tongue Fern has slow growth, while Licorice Plant grows moderate.

💡 Pro Tips For Comparing These Plants

Hart's Tongue Fern Care Tips

Hart's Tongue Fern requires consistent moisture, high humidity, and shade. Indoor cultivation can be challenging due to the need for specific environmental conditions. Providing adequate humidity and avoiding direct sunlight are crucial for success.

  • Provide consistent moisture, but avoid soggy soil.
  • Increase humidity by misting regularly or using a humidifier.
  • Avoid direct sunlight, which can scorch the fronds.
  • Use a well-draining potting mix rich in organic matter.
  • Fertilize sparingly during the growing season.
❄️ Winter: Reduce watering frequency as growth slows. Ensure adequate humidity, as indoor heating can dry out the air. Avoid placing near heat sources.
☀️ Summer: Provide adequate shade to prevent scorching. Increase watering frequency if the soil dries out quickly. Ensure good air circulation to prevent fungal diseases.

Licorice Plant Care Tips

Licorice is primarily an outdoor plant and requires full sun and well-drained soil. Growing it indoors is challenging due to its high light requirements and potential for rhizomatous spread. It also poses a toxicity risk to pets. Indoor cultivation requires careful attention to light, watering, and potential toxicity.

  • Provide well-drained soil to prevent root rot.
  • Ensure at least 6-8 hours of direct sunlight daily.
  • Monitor for pests like aphids and spider mites.
  • Harvest licorice roots in the fall after 3-4 years of growth.
  • Be mindful of its potential for rhizomatous spread and contain it if necessary.
❄️ Winter: In winter, reduce watering significantly as the plant enters dormancy. Protect outdoor plants from frost by mulching around the base. If grown in containers, move them to a sheltered location.
☀️ Summer: During the summer, ensure the plant receives adequate sunlight and water regularly, especially during hot and dry periods. Monitor for pests and diseases, and provide fertilizer as needed.

⚠️ Common Problems & Solutions — Plant Care Comparison

Hart's Tongue Fern

Common Issues: Brown fronds, Root rot, Scale insects, Snail/slug damage
Solutions: Brown fronds: Increase humidity and ensure consistent watering. Root rot: Improve drainage and reduce watering frequency. Scale insects: Treat with insecticidal soap. Snail/slug damage: Use snail bait or handpick them off the plant.

Licorice Plant

Common Issues: Root rot, Aphids, Spider mites, Lack of sunlight
Solutions: Root rot: Ensure well-draining soil and avoid overwatering. Aphids: Spray with insecticidal soap. Spider mites: Increase humidity and treat with miticide. Lack of sunlight: Provide supplemental lighting or move outdoors during warmer months.

❓ Frequently Asked Questions — Comparing These Plants

Hart's Tongue Fern

What are the light requirements for Hart's Tongue Fern?

Hart’s Tongue Fern thrives in bright, indirect light. Direct sunlight can scorch its delicate fronds, leading to brown spots and stunted growth. A north-facing window is often ideal, providing ample light without the harsh intensity. East-facing windows can also work well, as long as the morning sun is not too strong. Avoid placing the fern in direct south or west-facing windows unless you can provide significant shading. Insufficient light can result in pale, leggy growth and a loss of the vibrant green color. Regularly assess your fern’s light exposure and adjust its placement as needed to ensure optimal growth and health.

How do I care for Hart's Tongue Fern?

Hart’s Tongue Fern requires specific care to thrive. Provide bright, indirect light, avoiding direct sunlight which can scorch the fronds. Maintain consistently moist soil, but avoid overwatering which can lead to root rot. Water when the top inch of soil feels dry. High humidity is crucial; aim for 60-80% humidity. Use a well-draining potting mix rich in organic matter. Fertilize sparingly during the growing season (spring and summer) with a diluted liquid fertilizer. Keep temperatures between 60-70°F (15-21°C). Prune away any dead or damaged fronds to encourage new growth. Repot only when necessary, usually every 2-3 years. Protect from drafts and sudden temperature changes. Regular misting is beneficial.

How do I propagate Hart's Tongue Fern?

Hart’s Tongue Fern can be propagated through division or spores. For division, carefully separate the rhizome into sections, ensuring each section has healthy fronds and roots. Plant each section in its own pot with well-draining soil. To propagate from spores, collect spores from mature fronds. Sow the spores on a sterile growing medium and maintain high humidity. Germination can take several weeks. Division is the easier and more common method. Ensure each division has adequate roots before repotting. Provide high humidity and indirect light during the propagation process.

Licorice Plant

What are the light requirements for Licorice Plant?

Licorice Plant thrives in bright, indirect light. Too much direct sunlight can scorch the leaves, while insufficient light can lead to leggy growth and faded foliage color. An east-facing window is often ideal, providing gentle morning sun. A south- or west-facing window can also work, but be sure to filter the light with sheer curtains or blinds, especially during the hottest part of the day.

How do I care for Licorice Plant?

Licorice Plant thrives in well-draining soil. Water thoroughly when the top inch of soil feels dry, allowing excess water to drain. Provide bright, indirect light for optimal growth, though it can tolerate some direct sun, especially in the morning. These plants prefer moderate temperatures, ideally between 60-75°F (15-24°C). Fertilize lightly every 4-6 weeks during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength.

How do I propagate Licorice Plant?

Licorice Plant is easily propagated through stem cuttings and layering. For stem cuttings, take a 4-6 inch cutting from a healthy stem, removing the lower leaves. Dip the cut end in rooting hormone and plant it in moist, well-draining potting mix. Cover with a plastic bag or humidity dome to maintain moisture. Keep in bright, indirect light until roots develop, usually within 2-4 weeks.

Last updated: April 19, 2026 — Plant care data reviewed and verified by our editorial team.