Honesty vs Licorice Plant Plant Comparison

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

Honesty

Honesty

Lunaria annua

VS
Licorice Plant

Licorice Plant

Glycyrrhiza glabra

Honesty

Honesty

Lunaria annua

Lunaria annua, commonly known as Honesty, is a biennial plant often grown as an annual. It features heart-shaped, toothed leaves and produces clusters of fragrant, purple or white flowers in spring and summer. The plant is most prized for its distinctive, translucent, papery seedpods that resemble silver coins, hence the common names. It typically grows to a height of 60-90 cm (2-3 feet). While primarily an outdoor plant, it's grown for its ornamental seedpods, which are often dried and used in floral arrangements. It is not naturally an indoor plant and will struggle in typical indoor conditions.

Brassicaceae Southeastern Europe and Western Asia
✨ Features: Ornamental seedpods, fragrant flowers
📖 Read Complete Honesty 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 Honesty Licorice Plant
Light Full sun to partial shade Full sun (at least 6-8 hours of direct sunlight daily)
Watering Every 7-10 days outdoors, depending on rainfall and temperature Every 5-7 days during the growing season, less frequently in winter.
Humidity 40-60% 40-60%
Temperature 15-25°C 15-27°C
Care Level Expert Expert
Growth Rate Fast Moderate
Max Height N/A (primarily grown outdoors) 0.5-1 meter (indoors, likely smaller)
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-draining soil, such as a mix of garden soil, compost, and perlite Well-drained loamy soil
Beginner Friendly ❌ No ❌ No
Weekly Maintenance 10 minutes weekly (weeding, watering) 30 minutes weekly (primarily for watering, weeding, and pest control).

🔬 Botanical Information — Comparing These Plants

Honesty

Scientific Name Lunaria annua
Family Brassicaceae
Native To Southeastern Europe and Western Asia
Also Known As Honesty, Silver Dollar Plant, Money Plant, Moonwort
Leaves Heart-shaped, toothed leaves that are typically 5-15 cm (2-6 inches) long. The leaves are medium green and have a slightly rough texture.
Flowers Produces clusters of fragrant, purple or white flowers in spring and summer. The flowers are small, about 2 cm (0.75 inches) in diameter, and have four petals.

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

Honesty

Height N/A (primarily grown outdoors)
Spread 30-60 cm (1-2 feet)
Growth Rate Fast
Growth Pattern Upright, branching plant that typically grows to a height of 60-90 cm (2-3 feet). It forms a bushy habit with multiple stems emerging from the base.

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

Honesty

Methods: Seed

Difficulty: Easy

Tips: Sow seeds directly into the garden in spring or fall. Seeds can also be started indoors 6-8 weeks before the last frost. Ensure good soil contact and keep the soil moist until germination.

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

Honesty

The translucent, papery seedpods are its most distinctive feature, giving it the common name 'Silver Dollar Plant'. The plant's ability to self-seed readily allows for natural propagation and a continuous display in the garden. Its fragrant flowers attract pollinators, contributing to garden biodiversity.

  • ✓ Provides ornamental seedpods for dried arrangements.
  • ✓ Attracts pollinators to the garden.
  • ✓ Adds visual interest to the garden in fall and winter.
  • ✓ Low-maintenance once established.
  • ✓ Fragrant flowers enhance the garden experience.
  • ⚠️ Toxic to pets

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

Honesty

Repotting N/A (primarily grown outdoors)
Pruning Cut back the plant after flowering to encourage seedpod production. Remove any dead or damaged foliage.
Fertilizing Balanced fertilizer (10-10-10) during the growing season (spring and summer), diluted to half strength, every 4-6 weeks.
Seasonal Care In spring, sow seeds or transplant seedlings. Water regularly during the growing season. In fall, allow seedpods to dry on the plant before harvesting. Cut back the plant after seedpods are harvested.

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

Honesty

Full sun to partial shade

Low light tolerant: ❌ No

Licorice Plant

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

Low light tolerant: ❌ No

💧 Watering Needs

Honesty

Water regularly, especially during dry periods. Avoid overwatering, which can lead to root rot. Allow the soil to dry slightly between waterings. Signs of underwatering include wilting leaves, while overwatering can cause yellowing and leaf drop.

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

Honesty

Temperature: 15-25°C

Humidity: 40-60%

Licorice Plant

Temperature: 15-27°C

Humidity: 40-60%

🤔 Which Plant Is Right For You?

Honesty

Honesty

Lunaria annua
Care: Expert Time: 10 minutes weekly (weeding, watering) Beginner: No

Gardeners who want to add unique, ornamental seedpods to their garden and dried flower arrangements.

✅ Choose This Plant If...

  • You love unique dried flower arrangements and want to grow your own materials.
  • You have a sunny garden spot and enjoy cottage-style gardens.
  • You want to attract pollinators to your garden with its fragrant flowers.
  • You enjoy the sound of rustling seedpods in the breeze.
  • You want a low-maintenance plant that adds visual interest to your garden in the fall and winter.

❌ Skip This Plant If...

  • You have pets that might ingest the plant, as it is toxic.
  • You don't have a sunny outdoor space.
  • You are looking for a plant that thrives indoors.
📍 Ideal Location: Outdoor garden or flower bed with full sun exposure
🎨 Style: Cottage, Rustic, Traditional
🏠 Apartment Friendly: No
⚠️ According to the ASPCA, Honesty is toxic to dogs, cats, and horses. The toxic principle is unknown. Symptoms include oral irritation, salivation, vomiting, and diarrhea.
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 Neither - caution
Less Maintenance Similar effort
Apartment Friendly Check space

⚡ Key Differences Between These Plants

☀️

Honesty needs full sun to partial shade, while Licorice Plant prefers full sun (at least 6-8 hours of direct sunlight daily).

📈

Honesty has fast growth, while Licorice Plant grows moderate.

💡 Pro Tips For Comparing These Plants

Honesty Care Tips

Honesty is primarily an outdoor plant and is challenging to grow indoors due to its high light requirements. It needs full sun to thrive and produce abundant seedpods. Indoor cultivation is not recommended unless you can provide very bright light and proper ventilation.

  • Allow seedpods to dry on the plant before harvesting for best results.
  • Provide well-draining soil to prevent root rot.
  • Water regularly during dry periods, especially when plants are young.
  • Deadhead spent flowers to encourage more seedpod production.
  • Protect from strong winds, which can damage the seedpods.
❄️ Winter: In colder climates, the plant may die back to the ground in winter. Mulch around the base of the plant to protect the roots. Allow seedpods to remain on the plant for winter interest.
☀️ Summer: Water regularly during dry periods. Provide some afternoon shade in hot climates to prevent leaf scorch. Monitor for pests and diseases and treat as needed.

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

Honesty

Common Issues: Powdery mildew, leaf spot, aphids, slugs
Solutions: Powdery mildew: Improve air circulation and apply a fungicide. Leaf spot: Remove affected leaves and apply a fungicide. Aphids: Spray with insecticidal soap. Slugs: Use slug bait or handpick them off the plants.

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

Honesty

What are the light requirements for Honesty?

Honesty prefers partial shade, especially in hotter climates. While it can tolerate full sun, too much direct sunlight can scorch the leaves and fade the flowers. In cooler regions, Honesty can thrive in full sun, but afternoon shade is still beneficial. When grown indoors, place Honesty near a bright, east-facing window that receives morning sun. Avoid south-facing windows that provide intense afternoon sun. If you don’t have access to natural light, you can supplement with artificial grow lights. Ensure the lights are positioned about 12-18 inches above the plant and provide at least 14-16 hours of light per day. Insufficient light can lead to leggy growth and reduced flowering.

How do I care for Honesty?

Honesty is relatively easy to care for, making it a great choice for beginner gardeners. It thrives in well-draining soil and prefers partial shade, although it can tolerate full sun in cooler climates. Water regularly, especially during dry periods, but avoid overwatering, which can lead to root rot. Fertilize sparingly, using a balanced fertilizer in spring to promote healthy growth and flowering. Deadhead spent flowers to encourage further blooming. Honesty is typically grown as a biennial, meaning it completes its life cycle in two years. In the first year, it focuses on vegetative growth, and in the second year, it flowers and produces seedpods. After the seedpods mature and dry, they can be harvested for decorative purposes. Honesty self-seeds readily, so be prepared for new plants to appear in subsequent years. Pruning is not typically required, but you can trim back the plant after flowering to maintain its shape.

How do I propagate Honesty?

Honesty can be propagated by seeds or by division. To propagate by seeds, collect the seeds from mature seedpods and sow them in spring or fall. Sow seeds directly into the garden or start them indoors in seed trays. Keep the soil moist and provide bright, indirect light. To propagate by division, carefully dig up the plant in spring or fall and divide the root ball into several sections. Replant the divisions in fresh, well-draining soil. Ensure each division has healthy roots and shoots. Division is not always successful, as Honesty can be sensitive to root disturbance. Stem cuttings and keiki propagation are not applicable to Honesty.

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: May 6, 2026 — Plant care data reviewed and verified by our editorial team.