Canna Lily vs Honesty Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Canna Lily
Canna indica
Canna indica, commonly known as Canna lily, is a rhizomatous perennial with large, paddle-shaped leaves and showy flowers. It's primarily grown outdoors for its tropical appearance and vibrant blooms, which come in various colors like red, orange, yellow, and pink. The plant grows from rhizomes, spreading readily in suitable conditions. While it can be grown indoors, it requires very bright light and ample space to thrive, making it more challenging than typical houseplants. People grow them for their bold foliage and exotic-looking flowers.
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.
Quick Plant Comparison
| Feature | Canna Lily | Honesty |
|---|---|---|
| Light | Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal flowering. | Full sun to partial shade |
| Watering | Every 2-5 days during growing season, less frequently in winter | Every 7-10 days outdoors, depending on rainfall and temperature |
| Humidity | 40-60% | 40-60% |
| Temperature | 18-27°C | 15-25°C |
| Care Level | Expert | Expert |
| Growth Rate | Fast | Fast |
| Max Height | 0.6-1.5 meters (indoors, typically smaller) | N/A (primarily grown outdoors) |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining, fertile soil rich in organic matter. A mix of potting soil, compost, and perlite is suitable. | Well-draining soil, such as a mix of garden soil, compost, and perlite |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes weekly | 10 minutes weekly (weeding, watering) |
🔬 Botanical Information — Comparing These Plants
Canna Lily
| Scientific Name | Canna indica |
|---|---|
| Family | Cannaceae |
| Native To | South America |
| Also Known As | Canna lily, Indian shot, Achira, Queensland arrowroot |
| Leaves | Large, paddle-shaped leaves, typically 30-60 cm long and 10-20 cm wide. The leaves are usually green, but some cultivars have bronze or variegated foliage. The texture is smooth and slightly waxy. |
| Flowers | Canna lilies rarely flower indoors due to insufficient light. Outdoors, they produce showy, asymmetrical flowers in shades of red, orange, yellow, pink, or bi-color combinations. The flowers are borne on tall stalks above the foliage. |
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. |
📏 Size & Growth — Plant Comparison
Canna Lily
Honesty
🌱 Propagation — Comparing Plant Growth
Canna Lily
Methods: Rhizome division, Seed
Difficulty: Easy
Tips: Divide rhizomes in early spring before new growth begins. Ensure each division has at least one eye (bud). Plant divisions in well-draining soil and keep moist until established. Seeds require scarification and soaking before planting.
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.
✨ Benefits & Features — Comparing Plant Value
Canna Lily
Canna lilies are known for their bold, tropical foliage and vibrant, showy flowers, making them a standout in any garden. Their rhizomatous growth habit allows them to spread readily, creating a lush, dense display. The seeds are unusually hard and were historically used as beads.
- ✓ Adds a tropical flair to your garden or outdoor space.
- ✓ Provides vibrant, colorful blooms that attract pollinators.
- ✓ Offers a bold statement with its large, paddle-shaped leaves.
- ✓ Can be used as a privacy screen or backdrop in landscaping.
- ✓ Provides a sense of accomplishment for experienced gardeners who can successfully cultivate it.
- ⚠️ Toxic to pets
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
📅 Maintenance Schedule — Plant Care Comparison
Canna Lily
Honesty
🌞 Light Requirements
Canna Lily
Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal flowering.
Low light tolerant: ❌ No
Honesty
Full sun to partial shade
Low light tolerant: ❌ No
💧 Watering Needs
Canna Lily
Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to rhizome rot. During the growing season, water more frequently. Reduce watering in the winter when the plant is dormant. Signs of overwatering include yellowing leaves and mushy rhizomes. Underwatering can cause wilting and browning leaf tips.
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.
🌡️ Temperature & Humidity
Canna Lily
Temperature: 18-27°C
Humidity: 40-60%
Honesty
Temperature: 15-25°C
Humidity: 40-60%
🤔 Which Plant Is Right For You?
Canna Lily
Canna indicaExperienced gardeners who want a bold, tropical plant and can provide ample sunlight and space.
✅ Choose This Plant If...
- You want a bold, tropical statement plant for your sunny outdoor space.
- You appreciate vibrant, showy flowers in shades of red, orange, and yellow.
- You have experience with rhizomatous plants and understand their growth habits.
- You can provide at least 6 hours of direct sunlight daily.
- You are prepared to overwinter the rhizomes indoors in colder climates.
❌ Skip This Plant If...
- You have pets that might ingest the plant, as it is toxic.
- You lack a very sunny location, as it needs at least 6 hours of direct sun.
- You prefer low-maintenance houseplants that don't require frequent attention.
Honesty
Lunaria annuaGardeners 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.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Both plants have similar basic care requirements but differ in appearance and specific needs. Compare plants carefully to find the best fit for your space.
💡 Pro Tips For Comparing These Plants
Canna Lily Care Tips
Canna lilies are primarily outdoor plants that require full sun and ample moisture. Growing them indoors is challenging due to their high light requirements and potential for aggressive rhizome spread. They need large pots and frequent fertilization to thrive indoors. Expect less flowering indoors.
- Provide ample sunlight – at least 6 hours of direct sun is crucial for flowering.
- Water deeply and regularly during the growing season, but avoid soggy soil.
- Fertilize every 2-4 weeks with a balanced liquid fertilizer to promote healthy growth and flowering.
- Protect from strong winds, which can damage the large leaves.
- Overwinter rhizomes indoors in colder climates by storing them in a cool, dry place.
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.
⚠️ Common Problems & Solutions — Plant Care Comparison
Canna Lily
Honesty
❓ Frequently Asked Questions — Comparing These Plants
Canna Lily
What are the light requirements for Canna Lily?
Canna Lilies need at least 6 hours of direct sunlight daily to thrive and produce abundant blooms. Insufficient light can lead to leggy growth and reduced flowering. Place outdoor Cannas in a location that receives full sun throughout the day.
How do I care for Canna Lily?
Canna Lilies thrive in full sun and well-draining soil. Water deeply when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Fertilize regularly during the growing season with a balanced fertilizer, switching to a bloom-boosting formula as flowering begins.
How do I propagate Canna Lily?
Canna Lilies are easily propagated by rhizome division. In early spring, carefully dig up the rhizomes and divide them into sections, ensuring each section has at least one growth eye. Plant the divisions in well-draining soil, about 4-6 inches deep. Water thoroughly and keep the soil consistently moist until new growth appears.
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.
Last updated: May 16, 2026 — Plant care data reviewed and verified by our editorial team.