Myrtle Spurge vs Purple Heart Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Myrtle Spurge
Euphorbia myrsinites
Myrtle Spurge is a succulent, low-growing perennial characterized by its sprawling habit and blue-gray, spirally arranged leaves. It typically reaches a height of 6-12 inches and spreads up to 24 inches wide. It is primarily grown as an ornamental ground cover in rock gardens or dry landscapes. It produces small, inconspicuous yellowish-green flowers in spring, followed by seed capsules. This plant is naturally an outdoor plant and struggles indoors due to its high light requirements and need for well-draining soil.
Purple Heart
Tradescantia pallida
Tradescantia pallida, commonly known as Purple Heart, is a striking herbaceous perennial characterized by its vibrant purple foliage. It features lance-shaped leaves that are entirely purple, intensifying in color with increased sunlight exposure. The plant typically grows to a height of 12-18 inches and spreads through creeping stems. While it can produce small, pink flowers, it is primarily grown for its ornamental foliage. It thrives outdoors in warm climates but can be grown indoors with sufficient light. People grow it for its unique color and ease of propagation.
Quick Plant Comparison
| Feature | Myrtle Spurge | Purple Heart |
|---|---|---|
| Light | Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal growth. | Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal purple coloration. |
| Watering | Every 2-4 weeks, depending on weather and soil drainage. | Every 7-10 days, adjust based on environmental conditions and soil dryness. |
| Humidity | 20-40% | 30-50% |
| Temperature | 15-25°C | 18-24°C |
| Care Level | Expert | Easy |
| Growth Rate | Moderate | Fast |
| Max Height | 6-12 inches (outdoor) | 15-30 cm (indoors) |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining, sandy or gravelly soil. Avoid heavy clay soils. | Well-draining potting mix, such as a cactus or succulent mix. |
| Beginner Friendly | ❌ No | ✅ Yes |
| Weekly Maintenance | 15 minutes monthly (weeding, pruning) | 5 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Myrtle Spurge
| Scientific Name | Euphorbia myrsinites |
|---|---|
| Family | Euphorbiaceae |
| Native To | Mediterranean region (Southern Europe and North Africa) |
| Also Known As | Myrtle Spurge, Donkey Spurge, Creeping Spurge, Glaucous Spurge |
| Leaves | Succulent, blue-gray, lance-shaped leaves arranged in a spiral pattern around the stems. Leaves are typically 1-2 inches long. |
| Flowers | Produces small, inconspicuous yellowish-green flowers in spring. Rarely flowers indoors. |
Purple Heart
| Scientific Name | Tradescantia pallida |
|---|---|
| Family | Commelinaceae |
| Native To | Northeastern Mexico |
| Also Known As | Purple Heart Plant, Purple Queen |
| Leaves | Lance-shaped leaves, typically 10-20 cm long and 2-3 cm wide. The leaves are a deep purple color, sometimes with a slightly fuzzy texture. The color intensifies with more sunlight exposure. |
| Flowers | Rarely flowers indoors. Outdoors, it produces small, three-petaled pink flowers in clusters at the tips of the stems. |
📏 Size & Growth — Plant Comparison
Myrtle Spurge
Purple Heart
🌱 Propagation — Comparing Plant Growth
Myrtle Spurge
Methods: Seed, Stem cuttings
Difficulty: Moderate
Tips: Take stem cuttings in spring or summer, allow the cut end to callous over for a few days, and then plant in well-draining soil. Wear gloves to avoid skin irritation from the sap.
Purple Heart
Methods: Stem cuttings, Division
Difficulty: Easy
Tips: Take stem cuttings 4-6 inches long, remove the lower leaves, and place them in water or directly into moist soil. Roots typically develop within a few weeks.
✨ Benefits & Features — Comparing Plant Value
Myrtle Spurge
The spirally arranged, blue-gray leaves give it a distinctive appearance. The milky sap is toxic and can cause skin irritation.
- ✓ Drought tolerance reduces water usage.
- ✓ Provides visual interest with its unique foliage.
- ✓ Low maintenance once established.
- ✓ Attracts pollinators.
- ✓ Controls erosion on slopes.
- ⚠️ Toxic to pets
Purple Heart
The intense purple color of the foliage is its most distinguishing feature. It's also very easy to propagate, making it a popular choice for sharing with friends.
- ✓ Adds vibrant color to any space
- ✓ Easy to propagate and share
- ✓ Relatively low maintenance
- ✓ Can be used as a ground cover or in hanging baskets
- ✓ Provides visual interest with its unique foliage
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Myrtle Spurge
Purple Heart
🌞 Light Requirements
Myrtle Spurge
Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal growth.
Low light tolerant: ❌ No
Purple Heart
Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal purple coloration.
Low light tolerant: ❌ No
💧 Watering Needs
Myrtle Spurge
Water deeply but infrequently, allowing the soil to dry out completely between waterings. Overwatering can lead to root rot. Signs of underwatering include shriveled leaves. Signs of overwatering include yellowing leaves and a mushy stem.
Purple Heart
Water thoroughly when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Signs of overwatering include yellowing leaves and a soggy soil. Underwatered plants will have dry, crispy leaves.
🌡️ Temperature & Humidity
Myrtle Spurge
Temperature: 15-25°C
Humidity: 20-40%
Purple Heart
Temperature: 18-24°C
Humidity: 30-50%
🤔 Which Plant Is Right For You?
Myrtle Spurge
Euphorbia myrsinitesExperienced gardeners looking for a drought-tolerant ground cover in sunny, well-drained locations.
✅ Choose This Plant If...
- You need a drought-tolerant ground cover for a sunny area.
- You appreciate the unique blue-gray foliage.
- You are an experienced gardener familiar with handling toxic plants.
- You want a low-maintenance plant once established.
- You have a rock garden or xeriscape landscape.
❌ Skip This Plant If...
- You have pets or small children who may ingest the plant.
- You are a beginner gardener.
- You do not have a sunny outdoor space.
- You are sensitive to latex or have skin allergies.
Purple Heart
Tradescantia pallidaGardeners looking for a low-maintenance plant with striking purple foliage.
✅ Choose This Plant If...
- You want a plant with vibrant purple foliage.
- You are looking for an easy-to-propagate plant.
- You have a sunny location where the plant can thrive.
- You want a plant that adds a unique color contrast to your garden or indoor space.
- You are an experienced plant owner who can keep it away from pets.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You cannot provide sufficient sunlight.
- You are prone to overwatering your plants.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Myrtle Spurge is rated Expert care level, while Purple Heart is Easy.
Myrtle Spurge has moderate growth, while Purple Heart grows fast.
💡 Pro Tips For Comparing These Plants
Myrtle Spurge Care Tips
Myrtle Spurge is an outdoor plant that requires full sun and well-draining soil. It is not suitable for indoor growing due to its high light requirements and potential for toxicity. It is drought-tolerant and relatively low-maintenance once established, but requires careful handling due to its toxic sap.
- Always wear gloves and eye protection when handling Myrtle Spurge.
- Remove seed heads to prevent unwanted spread.
- Ensure excellent drainage to prevent root rot.
- Water deeply but infrequently.
- Provide full sun for optimal growth and color.
Purple Heart Care Tips
Purple Heart is relatively easy to care for, thriving in bright light and well-draining soil. Overwatering is the main concern. Regular pruning helps maintain its shape and encourages bushier growth. While it can be grown indoors, providing sufficient light is crucial for maintaining its vibrant purple color.
- Provide at least 6 hours of direct sunlight daily for optimal color.
- Allow the soil to dry out slightly between waterings.
- Prune regularly to maintain shape and encourage bushier growth.
- Fertilize during the growing season to promote healthy growth.
- Monitor for pests and treat promptly.
⚠️ Common Problems & Solutions — Plant Care Comparison
Myrtle Spurge
Purple Heart
❓ Frequently Asked Questions — Comparing These Plants
Myrtle Spurge
What are the light requirements for Myrtle Spurge?
Myrtle Spurge thrives in bright, direct sunlight. Aim for at least 6 hours of sunlight per day. An east- or south-facing window is ideal. If grown outdoors, choose a location that receives full sun. Insufficient light can lead to etiolation, where the plant stretches towards the light source, resulting in weak, leggy growth. Rotate the plant regularly to ensure even light exposure on all sides. In regions with intense summer sun, provide some afternoon shade to prevent scorching. Supplement with grow lights if natural light is limited, particularly during winter months.
How do I care for Myrtle Spurge?
Myrtle Spurge requires well-draining soil, such as a cactus or succulent mix, to prevent root rot. Water thoroughly when the soil is completely dry, typically every 2-4 weeks, depending on environmental conditions. Provide bright, direct sunlight for at least 6 hours a day; however, protect it from intense afternoon sun in hot climates. Fertilize sparingly, only during the growing season (spring and summer), using a balanced, diluted succulent fertilizer. Prune dead or damaged leaves to maintain its appearance. Be extremely cautious of the milky sap, which can cause skin irritation. Wear gloves when handling. Avoid overwatering, especially during winter dormancy.
How do I propagate Myrtle Spurge?
Myrtle Spurge can be propagated through stem cuttings, leaf cuttings, or offsets. For stem cuttings, allow the cut end to callous over for a few days before planting in well-draining soil. Rooting hormone can aid in the process. Leaf cuttings can be placed on top of well-draining soil and misted occasionally. Offsets, or small plantlets that grow around the base of the mother plant, can be carefully separated and potted individually. Wear gloves when handling cuttings to avoid skin irritation from the sap. Provide bright, indirect light and maintain consistent moisture until roots develop. Propagation is best done during the growing season (spring or summer).
Purple Heart
What are the light requirements for Purple Heart?
Purple Heart requires bright, indirect light to maintain its vibrant purple coloration. Insufficient light will cause the leaves to fade to green. East- or west-facing windows are ideal. Avoid direct sunlight, especially during the hottest part of the day, as this can scorch the leaves. If you don’t have access to bright natural light, consider using a grow light. Place the plant a few feet away from the light source. Rotate the plant regularly to ensure even growth and coloration on all sides. Watch the plant closely and adjust its location if you notice the leaves starting to fade or burn.
How do I care for Purple Heart?
Purple Heart thrives in bright, indirect light. Direct sunlight can scorch the leaves. Water thoroughly when the top inch of soil feels dry. Ensure good drainage to prevent root rot. The ideal temperature range is 60-80°F (15-27°C). Maintain moderate humidity, especially during dry months. Fertilize monthly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Prune regularly to encourage bushier growth and remove any dead or leggy stems. Repot in spring when the plant becomes root-bound. Use a well-draining potting mix. Watch out for pests like spider mites and mealybugs. Wipe leaves regularly to keep them clean and free from dust. Provide adequate air circulation.
How do I propagate Purple Heart?
Purple Heart is easily propagated through stem cuttings. Take a 4-6 inch cutting from a healthy stem. Remove the lower leaves. Allow the cut end to callous over for a day or two. Place the cutting in water or directly into moist, well-draining potting mix. Keep the soil consistently moist. Roots should develop within a few weeks. For division, carefully separate the plant at the roots and repot each section. Air layering is also possible but less common. Simply wound a stem, wrap it in moist sphagnum moss, and cover with plastic wrap. Once roots develop, cut the stem below the roots and pot the new plant.
Last updated: April 28, 2026 — Plant care data reviewed and verified by our editorial team.