Canna Lily vs Colocasia 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.
Colocasia
Colocasia esculenta
Colocasia esculenta, commonly known as Taro or Elephant Ear, is a tropical perennial grown for its large, heart-shaped leaves. It's primarily an outdoor plant, thriving in warm, humid environments. People cultivate it for its ornamental foliage, which comes in various colors and patterns, and for its edible corms (underground stems), which are a staple food in many cultures. While it can be grown indoors, it requires very specific conditions to thrive and often struggles to reach its full potential.
Quick Plant Comparison
| Feature | Canna Lily | Colocasia |
|---|---|---|
| Light | Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal flowering. | Bright, indirect light to full sun outdoors. Indoors, requires very bright light, ideally near a south-facing window with supplemental lighting. |
| Watering | Every 2-5 days during growing season, less frequently in winter | Every 2-5 days, depending on light and temperature. |
| Humidity | 40-60% | 60-80% |
| Temperature | 18-27°C | 21-27°C |
| Care Level | Expert | Expert |
| Growth Rate | Fast | Fast, Especially Outdoors. Can Be An Aggressive Spreader Via Rhizomes. |
| Max Height | 0.6-1.5 meters (indoors, typically smaller) | Indoors: 0.6-1.2 meters (2-4 feet). Outdoors: up to 2.4 meters (8 feet). |
| 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, moisture-retentive potting mix rich in organic matter. A mix of peat moss, perlite, and compost is suitable. |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes weekly | 30 minutes weekly |
🔬 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. |
Colocasia
| Scientific Name | Colocasia esculenta |
|---|---|
| Family | Araceae |
| Native To | Southeast Asia |
| Also Known As | Taro, Elephant Ear, Dasheen, Eddoe |
| Leaves | Large, heart-shaped or arrow-shaped leaves, typically 30-60 cm (12-24 inches) long and wide, but can grow larger. The leaves come in various colors, including green, purple, black, and variegated patterns. The texture is smooth and slightly waxy. |
| Flowers | Rarely flowers indoors. Outdoors, it produces small, inconspicuous flowers on a spadix surrounded by a spathe, similar to other members of the Araceae family. |
📏 Size & Growth — Plant Comparison
Canna Lily
Colocasia
🌱 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.
Colocasia
Methods: Division of rhizomes, corms, and seeds (though seeds are less common).
Difficulty: Moderate
Tips: Divide rhizomes in spring or summer. Ensure each division has at least one growth point (eye). Plant in well-draining soil and keep moist. Corms can be planted directly in soil.
✨ 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
Colocasia
Colocasia esculenta is unique for its large, heart-shaped leaves that come in a variety of colors and patterns. Unlike Alocasia, its leaves typically point downwards. Its edible corms are a staple food in many cultures, making it both an ornamental and practical plant.
- ✓ Adds a tropical aesthetic to your home or garden.
- ✓ Provides a sense of tranquility and connection to nature.
- ✓ Can be a conversation starter due to its unique appearance.
- ✓ Edible corms (with proper preparation) provide a source of food.
- ✓ Large leaves can help to increase humidity in a small area.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Canna Lily
Colocasia
🌞 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
Colocasia
Bright, indirect light to full sun outdoors. Indoors, requires very bright light, ideally near a south-facing window with supplemental lighting.
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.
Colocasia
Keep the soil consistently moist but not waterlogged. Water thoroughly when the top inch of soil feels dry. Overwatering can lead to root rot, indicated by yellowing leaves and a mushy stem. Underwatering results in drooping leaves and dry, crispy edges.
🌡️ Temperature & Humidity
Canna Lily
Temperature: 18-27°C
Humidity: 40-60%
Colocasia
Temperature: 21-27°C
Humidity: 60-80%
🤔 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.
Colocasia
Colocasia esculentaExperienced plant enthusiasts who can provide the specific environmental conditions required for tropical plants.
✅ Choose This Plant If...
- You love bold, tropical foliage and are willing to provide high humidity and bright light.
- You have experience growing other tropical plants and understand their needs.
- You want a statement plant that adds a dramatic touch to your indoor or outdoor space.
- You are interested in growing edible plants (with proper research and preparation of the corms).
- You have a greenhouse or sunroom where you can provide the ideal growing conditions.
❌ Skip This Plant If...
- You have pets that might ingest the plant, as it is toxic.
- You cannot provide consistently high humidity and bright light.
- You are a beginner plant owner looking for a low-maintenance plant.
🎯 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.
Colocasia Care Tips
Colocasia esculenta is primarily an outdoor plant that requires high humidity, bright light, and consistent moisture. Growing it indoors is challenging due to the difficulty in replicating these conditions. It's also toxic to pets. Requires frequent repotting due to rhizomatous growth.
- Provide consistent moisture, but avoid overwatering to prevent root rot.
- Increase humidity by misting regularly or using a humidifier.
- Fertilize regularly during the growing season to support healthy growth.
- Protect from direct sunlight, which can scorch the leaves.
- Repot annually to provide fresh soil and room for the rhizomes to grow.
⚠️ Common Problems & Solutions — Plant Care Comparison
Canna Lily
Colocasia
❓ 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.
Colocasia
What are the light requirements for Colocasia?
Colocasia plants require bright, indirect light to thrive. Direct sunlight can scorch their delicate leaves, leading to unsightly brown spots. An east-facing window is often ideal, providing gentle morning light. If you only have access to south or west-facing windows, filter the light with sheer curtains. Insufficient light can lead to leggy growth and a loss of leaf color vibrancy. Rotate your Colocasia periodically to ensure even light exposure on all sides. If natural light is insufficient, consider supplementing with a grow light. Observe your plant carefully for signs of stress, such as leaf burn or pale coloration, and adjust the light accordingly.
How do I care for Colocasia?
Colocasia plants thrive in bright, indirect light. Avoid direct sunlight, which can scorch the leaves. Water frequently, keeping the soil consistently moist but not waterlogged. Ensure good drainage to prevent root rot. Colocasia prefers high humidity, so mist regularly or use a humidifier, especially indoors. Fertilize every 2-4 weeks during the growing season (spring and summer) with a balanced liquid fertilizer. Reduce fertilization during the fall and winter. Repot the plant as needed when it becomes root-bound. Prune away any yellowing or damaged leaves. Provide temperatures between 65-80°F (18-27°C) for optimal growth. Protect from frost. Monitor for pests such as spider mites and aphids and treat accordingly. Ensure adequate air circulation.
How do I propagate Colocasia?
Colocasia can be propagated through division, stem cuttings, or air layering. For division, carefully separate the rhizomes during repotting, ensuring each division has healthy roots and at least one leaf. Plant each division in its own pot with well-draining soil. For stem cuttings, take a cutting with at least one node and place it in water until roots develop, then plant in soil. Air layering involves wounding a stem, wrapping it in moist sphagnum moss, and covering it with plastic wrap until roots appear, then cutting it below the roots and planting it. Maintain high humidity and warm temperatures during propagation for best results. Ensure the soil is consistently moist but not waterlogged. Propagating during the growing season (spring or summer) increases success rates.
Last updated: April 20, 2026 — Plant care data reviewed and verified by our editorial team.