Ornamental Kale vs Wax Plant Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Ornamental Kale
Brassica oleracea var. acephala
Ornamental kale is a cool-season biennial grown as an annual for its colorful foliage. It is not grown for consumption, though technically edible. The plant forms a rosette of broad, ruffled or frilled leaves in shades of green, purple, pink, red, and white. The vibrant colors intensify in cooler temperatures. It is primarily an outdoor plant, thriving in full sun and cool weather. People grow it for its decorative appeal in gardens, containers, and borders, providing color and texture in the fall and winter months.
Wax Plant
Hoya carnosa
Hoya carnosa, commonly known as Wax Plant, is a popular epiphytic vine prized for its waxy, succulent-like leaves and fragrant, star-shaped flowers. It's native to Eastern Asia and Australia, where it climbs on trees in tropical forests. As a houseplant, it's grown for its attractive foliage and unique blooms, which appear in clusters and can drip nectar. While relatively easy to care for, it thrives best with bright, indirect light and well-draining soil. It is a slow to moderate grower, making it suitable for indoor spaces.
Quick Plant Comparison
| Feature | Ornamental Kale | Wax Plant |
|---|---|---|
| Light | Full sun to partial shade. Requires at least 6 hours of direct sunlight for best color development. | Bright, indirect light. Can tolerate some direct morning sun, but avoid intense afternoon sun. |
| Watering | Every 2-3 days outdoors, less frequently indoors if attempted. | Every 2-3 weeks, depending on environmental conditions |
| Humidity | 40-60% | 40-60% |
| Temperature | 7-18°C | 18-24°C |
| Care Level | Expert | Easy |
| Growth Rate | Moderate | Slow |
| Max Height | 15-30 cm | Up to 1.2 meters indoors |
| Pet Safety | ❌ Mildly Toxic | ❌ Toxic To Pets |
| Soil | Well-draining potting mix rich in organic matter. A mix of garden soil, peat moss, and perlite is suitable. | Well-draining potting mix, such as a mix of perlite, orchid bark, and peat moss. |
| Beginner Friendly | ❌ No | ✅ Yes |
| Weekly Maintenance | 10 minutes weekly | 5 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Ornamental Kale
| Scientific Name | Brassica oleracea var. acephala |
|---|---|
| Family | Brassicaceae |
| Native To | Mediterranean region |
| Also Known As | Ornamental Kale, Flowering Kale, Ornamental Cabbage |
| Leaves | The leaves are broad, ruffled, or frilled, with colors ranging from green to purple, pink, red, and white. The leaf texture is often waxy or slightly glossy. |
| Flowers | Ornamental kale will eventually flower, especially in warmer temperatures or after a period of cold. The flowers are small, yellow, and typical of the Brassica family. Flowering (bolting) signals the end of its ornamental value. |
Wax Plant
| Scientific Name | Hoya carnosa |
|---|---|
| Family | Apocynaceae |
| Native To | Eastern Asia, Australia |
| Also Known As | Wax Plant, Wax Flower, Porcelain Flower |
| Leaves | The leaves of Hoya carnosa are thick, waxy, and succulent-like. They are typically oval-shaped and range in color from dark green to light green, with some varieties exhibiting variegation (e.g., 'Variegata' with creamy white edges). The leaves are smooth and glossy, adding to the plant's overall appeal. |
| Flowers | Hoya carnosa can flower indoors with proper care and sufficient light. The flowers are star-shaped, waxy, and appear in clusters called umbels. They are typically pink or white with a red center and produce a sweet, strong fragrance. The flowers also secrete a sticky nectar. |
📏 Size & Growth — Plant Comparison
Ornamental Kale
Wax Plant
🌱 Propagation — Comparing Plant Growth
Ornamental Kale
Methods: Seed
Difficulty: Easy
Tips: Sow seeds indoors 6-8 weeks before the last expected frost. Transplant seedlings outdoors after the danger of frost has passed.
Wax Plant
Methods: Stem cuttings, layering
Difficulty: Easy
Tips: Take stem cuttings with at least two nodes. Allow the cut end to callous over for a day or two before planting in well-draining soil. Keep the soil consistently moist until roots develop.
✨ Benefits & Features — Comparing Plant Value
Ornamental Kale
Ornamental kale is unique for its vibrant colors and ruffled leaves, providing a striking contrast to other fall and winter plants. Its colors intensify as temperatures drop, making it a popular choice for cool-season gardens.
- ✓ Adds vibrant color to cool-season gardens
- ✓ Provides visual interest during the dormant season
- ✓ Attracts beneficial insects
- ✓ Easy to grow outdoors in suitable climates
- ✓ Can be used in cut flower arrangements
- ⚠️ Toxic to pets
Wax Plant
Hoya carnosa is known for its waxy leaves and star-shaped flowers that produce a sweet fragrance and sticky nectar. The plant's flower stalks (peduncles) should not be removed after flowering, as they will produce flowers again in subsequent years. These unique characteristics make it a popular and rewarding houseplant.
- ✓ Aesthetically pleasing with unique flowers and foliage.
- ✓ Relatively easy to care for, even for beginners.
- ✓ Can tolerate some neglect.
- ✓ Adds a touch of the tropics to your home.
- ✓ Fragrant flowers can improve mood.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Ornamental Kale
Wax Plant
🌞 Light Requirements
Ornamental Kale
Full sun to partial shade. Requires at least 6 hours of direct sunlight for best color development.
Low light tolerant: ❌ No
Wax Plant
Bright, indirect light. Can tolerate some direct morning sun, but avoid intense afternoon sun.
Low light tolerant: ❌ No
💧 Watering Needs
Ornamental Kale
Water regularly, keeping the soil consistently moist but not waterlogged. Check the soil moisture by sticking your finger about an inch deep. If it feels dry, water thoroughly until water drains from the bottom of the pot. Overwatering can lead to root rot, indicated by yellowing and wilting leaves. Underwatering will cause the leaves to droop and become crispy.
Wax Plant
Allow the soil to dry out almost completely between waterings. Overwatering can lead to root rot. Water thoroughly when the top inch or two of soil is dry. Reduce watering in winter. Signs of overwatering include yellowing leaves and a mushy stem. Underwatering is indicated by shriveled leaves.
🌡️ Temperature & Humidity
Ornamental Kale
Temperature: 7-18°C
Humidity: 40-60%
Wax Plant
Temperature: 18-24°C
Humidity: 40-60%
🤔 Which Plant Is Right For You?
Ornamental Kale
Brassica oleracea var. acephalaGardeners looking for colorful foliage in cool-season gardens and containers.
✅ Choose This Plant If...
- You want vibrant fall and winter color in your garden.
- You need a cool-season plant for containers.
- You want to attract beneficial insects to your garden.
- You enjoy experimenting with different textures and colors in your landscape.
- You have a sunny location with well-draining soil.
❌ Skip This Plant If...
- You live in a warm climate where it will quickly bolt.
- You don't have a sunny outdoor space.
- You have pets that might ingest it and experience gastrointestinal upset.
Wax Plant
Hoya carnosaBeginner plant enthusiasts looking for a low-maintenance, attractive houseplant with unique flowers.
✅ Choose This Plant If...
- You want a low-maintenance plant with unique, fragrant flowers.
- You appreciate plants with interesting foliage.
- You have a bright, indirect light location.
- You don't mind a slower-growing plant.
- You want a plant that can tolerate some neglect.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You tend to overwater your plants.
- You don't have a bright enough location.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Ornamental Kale is rated Expert care level, while Wax Plant is Easy.
Ornamental Kale has moderate growth, while Wax Plant grows slow.
💡 Pro Tips For Comparing These Plants
Ornamental Kale Care Tips
Ornamental kale is primarily an outdoor plant that thrives in cool weather and full sun. Growing it indoors is challenging as it requires very bright light and cool temperatures to maintain its color and form. It is susceptible to pests and diseases, and its lifespan is relatively short.
- Plant in well-draining soil to prevent root rot.
- Provide full sun for best color development.
- Water regularly, especially during dry periods.
- Fertilize every 2-3 weeks with a balanced liquid fertilizer.
- Protect from frost in colder climates.
Wax Plant Care Tips
Hoya carnosa is a relatively low-maintenance houseplant that thrives in bright, indirect light and well-draining soil. Avoid overwatering and provide support for its vining growth habit. It may take several years for a young plant to bloom.
- Allow the soil to dry out almost completely between waterings.
- Provide bright, indirect light for optimal growth and flowering.
- Avoid moving the plant when it's about to bloom.
- Fertilize regularly during the growing season.
- Provide support for its vining growth habit.
⚠️ Common Problems & Solutions — Plant Care Comparison
Ornamental Kale
Wax Plant
❓ Frequently Asked Questions — Comparing These Plants
Ornamental Kale
What are the light requirements for Ornamental Kale?
Ornamental Kale needs at least 6 hours of direct sunlight per day to develop its best color. Insufficient light can result in leggy growth and dull foliage. When planting, choose a location that receives full sun, especially during the cooler months. In warmer climates, providing some afternoon shade can prevent the leaves from scorching. For container-grown Ornamental Kale, rotate the pot regularly to ensure even light exposure. If growing indoors, supplement with grow lights to provide adequate illumination. East-facing windows are generally suitable, but south-facing windows may require shading during the hottest part of the day.
How do I care for Ornamental Kale?
Ornamental Kale thrives in cool weather and prefers full sun to partial shade. Plant it in well-draining soil that is rich in organic matter. Water regularly, especially during dry spells, but avoid overwatering, which can lead to root rot. Fertilize every 2-3 weeks with a balanced fertilizer during the growing season to promote vibrant colors. Deadhead any yellowing or damaged leaves to maintain its appearance. Protect from pests such as aphids and cabbage worms. Ensure good air circulation to prevent fungal diseases. Monitor for signs of disease or pest infestation and treat promptly. Provide support if the plant becomes top-heavy. Adjust watering and fertilization based on weather conditions.
How do I propagate Ornamental Kale?
Ornamental Kale is typically grown from seed, but it can also be propagated through stem cuttings, although this is less common. To propagate from 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 in a well-draining potting mix. Keep the soil moist and provide indirect light until roots develop.
Wax Plant
What are the light requirements for Wax Plant?
Wax Plants thrive in bright, indirect light. Avoid direct sunlight, especially during the hottest part of the day, as it can scorch the leaves. An east-facing window is ideal, providing gentle morning sun. West-facing windows can work if the plant is shielded from intense afternoon sun. South-facing windows require careful monitoring to ensure the plant doesn’t receive too much direct light. Insufficient light can result in leggy growth and a lack of flowering. If your Hoya is not getting enough natural light, consider supplementing with a grow light. Rotate your plant periodically to ensure even growth on all sides. The color of the leaves can indicate light levels: pale leaves may indicate too much light, while dark green leaves may indicate insufficient light.
How do I care for Wax Plant?
Wax Plants are relatively low-maintenance and easy to care for. They thrive in bright, indirect light, but can tolerate some shade. Water thoroughly when the top inch of soil is dry, allowing excess water to drain. Avoid overwatering, as this can lead to root rot. Use well-draining potting mix specifically formulated for epiphytes or orchids. Fertilize sparingly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Prune regularly to maintain shape and encourage bushier growth. Provide a support structure, such as a trellis or moss pole, if you want your Hoya to climb. Repot only when the plant becomes root-bound. Maintain moderate humidity levels, especially during winter. Watch for pests like mealybugs and aphids, and treat promptly if detected. Avoid moving or rotating your Hoya while it is budding or flowering, as this can cause the buds to drop.
How do I propagate Wax Plant?
Hoyas are easily propagated from stem cuttings or by layering. For stem cuttings, take a cutting with at least two nodes. Remove the lower leaves and place the cutting in water or moist perlite. Roots should develop within a few weeks. Once roots are established, plant the cutting in well-draining potting mix. For layering, bend a long vine down to the soil and secure it in place. After roots develop at the point of contact, sever the vine from the mother plant. Both methods are most successful during the growing season (spring and summer). Ensure the cuttings receive bright, indirect light and consistent moisture. Rooting hormone can improve the success rate of propagation.
Last updated: April 29, 2026 — Plant care data reviewed and verified by our editorial team.