Licorice Plant vs Mandevilla Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
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.
Mandevilla
Mandevilla splendens
Mandevilla splendens is a vigorous, twining vine known for its showy, trumpet-shaped flowers. It is native to Brazil and is commonly cultivated as an ornamental plant in tropical and subtropical regions. The plant features glossy, dark green leaves and produces clusters of vibrant pink or red flowers. While often grown outdoors on trellises or arbors, it can be grown indoors with sufficient light and humidity. People grow it for its beautiful flowers and ability to add a tropical flair to gardens and patios. It is primarily an outdoor plant.
Quick Plant Comparison
| Feature | Licorice Plant | Mandevilla |
|---|---|---|
| Light | Full sun (at least 6-8 hours of direct sunlight daily) | Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal flowering. |
| Watering | Every 5-7 days during the growing season, less frequently in winter. | Every 3-7 days, depending on environmental conditions and pot size. |
| Humidity | 40-60% | 50-70% |
| Temperature | 15-27°C | 18-27°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate | Fast |
| Max Height | 0.5-1 meter (indoors, likely smaller) | Indoors: 1-2 meters (if supported); Outdoors: Up to 5 meters |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-drained loamy soil | Well-draining potting mix, such as a mix of peat moss, perlite, and vermiculite. |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes weekly (primarily for watering, weeding, and pest control). | 30 minutes weekly |
🔬 Botanical Information — Comparing These Plants
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. |
Mandevilla
| Scientific Name | Mandevilla splendens |
|---|---|
| Family | Apocynaceae |
| Native To | Brazil |
| Also Known As | Mandevilla, Rocktrumpet, Dipladenia |
| Leaves | The leaves of Mandevilla splendens are glossy, dark green, and oval-shaped with pointed tips. They are typically 10-20 cm long and 5-10 cm wide, with a smooth texture and prominent veins. |
| Flowers | Mandevilla splendens produces large, trumpet-shaped flowers that are typically pink or red, although white and yellow varieties are also available. The flowers are fragrant and bloom profusely during the growing season (spring and summer). Flowering indoors is rare unless optimal light conditions are met. |
📏 Size & Growth — Plant Comparison
Licorice Plant
Mandevilla
🌱 Propagation — Comparing Plant Growth
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.
Mandevilla
Methods: Stem cuttings
Difficulty: Moderate
Tips: Take stem cuttings in spring or summer. Dip the cut end in rooting hormone and plant in a well-draining potting mix. Keep the soil moist and provide warmth and humidity.
✨ Benefits & Features — Comparing Plant Value
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
Mandevilla
Mandevilla splendens is distinguished by its large, trumpet-shaped flowers and glossy, dark green leaves. Its vigorous climbing habit makes it a popular choice for adding vertical interest to gardens and patios. Unlike some vines, it is not considered invasive.
- ✓ Adds vibrant color to outdoor spaces.
- ✓ Attracts pollinators like hummingbirds and butterflies.
- ✓ Provides a tropical aesthetic.
- ✓ Can be trained to climb trellises or arbors, adding vertical interest.
- ✓ Offers a sense of accomplishment for experienced gardeners.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Licorice Plant
Mandevilla
🌞 Light Requirements
Licorice Plant
Full sun (at least 6-8 hours of direct sunlight daily)
Low light tolerant: ❌ No
Mandevilla
Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal flowering.
Low light tolerant: ❌ No
💧 Watering Needs
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.
Mandevilla
Water thoroughly when the top inch of soil is dry. Avoid overwatering, which can lead to root rot. Signs of overwatering include yellowing leaves and a soggy soil. Underwatering is indicated by wilting leaves and dry soil.
🌡️ Temperature & Humidity
Licorice Plant
Temperature: 15-27°C
Humidity: 40-60%
Mandevilla
Temperature: 18-27°C
Humidity: 50-70%
🤔 Which Plant Is Right For You?
Licorice Plant
Glycyrrhiza glabraExperienced 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.
Mandevilla
Mandevilla splendensExperienced gardeners who can provide the specific light and humidity conditions required for healthy growth and flowering.
✅ Choose This Plant If...
- You want a plant with vibrant, trumpet-shaped flowers that bloom throughout the growing season.
- You have a sunny outdoor space, such as a patio or balcony, where the plant can thrive.
- You are experienced with plant care and can provide the specific light and humidity requirements.
- You want to attract hummingbirds and butterflies to your garden.
- You are looking for a climbing vine to add vertical interest to your landscape.
❌ Skip This Plant If...
- You have pets that may ingest the plant, as it is toxic to them.
- You lack a bright, sunny location to provide the necessary light for flowering.
- You are a beginner gardener and prefer low-maintenance plants.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Licorice Plant has moderate growth, while Mandevilla grows fast.
💡 Pro Tips For Comparing These Plants
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.
Mandevilla Care Tips
Mandevilla splendens is primarily an outdoor plant that requires bright light, consistent moisture, and regular fertilization. Indoor cultivation is challenging due to the need for high light levels and humidity. It is also toxic to pets, requiring careful placement.
- Provide a trellis or support structure for the vine to climb.
- Water deeply but infrequently, allowing the soil to dry slightly between waterings.
- Fertilize regularly during the growing season to promote abundant flowering.
- Protect the plant from frost and freezing temperatures.
- Prune regularly to maintain shape and encourage bushier growth.
⚠️ Common Problems & Solutions — Plant Care Comparison
Licorice Plant
Mandevilla
❓ Frequently Asked Questions — Comparing These Plants
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.
Mandevilla
What are the light requirements for Mandevilla?
Mandevilla thrives in bright, indirect sunlight. It needs at least 6 hours of sunlight daily to produce abundant blooms. An east-facing window is ideal, providing gentle morning sun. A south-facing window can work, but be sure to filter the light with a sheer curtain to prevent leaf scorch. If grown outdoors, choose a location that receives full sun for at least part of the day, but is sheltered from the harshest afternoon rays. Insufficient light will result in fewer blooms and leggy growth. If natural light is lacking, supplement with a grow light. Rotate the plant regularly to ensure even light exposure on all sides. Watch for signs of insufficient light, such as pale leaves and lack of flowering, and adjust the plant’s location accordingly.
How do I care for Mandevilla?
To keep your Mandevilla thriving, provide it with bright, indirect sunlight for at least 6 hours a day. Water thoroughly when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Fertilize every 2-4 weeks during the growing season (spring and summer) with a balanced fertilizer, or one specifically formulated for flowering plants, to encourage abundant blooms. Prune regularly to maintain shape and promote bushier growth. Provide a trellis or support structure for climbing varieties. Maintain humidity levels around 50-60% by misting regularly or using a humidifier. Repot in spring every 1-2 years as needed, using a well-draining potting mix. Protect from frost and temperatures below 50°F (10°C). Monitor for pests like spider mites and aphids, and treat promptly. Deadhead spent flowers to encourage continuous blooming.
How do I propagate Mandevilla?
Mandevilla can be propagated using stem cuttings. Take a 4-6 inch stem cutting from a healthy plant in spring or summer. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cutting in a well-draining potting mix and keep it moist. Cover with a plastic bag to increase humidity. Place in a warm, bright location, but out of direct sunlight. Roots should develop in 4-6 weeks. Once rooted, transplant into a larger pot. Mandevilla is not commonly propagated by division or keiki. Stem cuttings are the most reliable method for home propagation. Consistent moisture and warmth are crucial for successful rooting.
Last updated: April 29, 2026 — Plant care data reviewed and verified by our editorial team.