Devil's Backbone vs Mallow Plant Comparison

Compare these two plants side by side — care needs, key differences, and which is right for your home.

Devil's Backbone

Devil's Backbone

Euphorbia tithymaloides

VS
Mallow

Mallow

Malva sylvestris

Devil's Backbone

Devil's Backbone

Euphorbia tithymaloides

Euphorbia tithymaloides, commonly known as Devil's Backbone, is a succulent shrub characterized by its unique zig-zagging stems and fleshy, ovate leaves. It can grow up to 6-8 feet tall outdoors, but typically remains smaller when grown as a houseplant. The leaves are typically green, but variegated forms with white or pink edges are also popular. Small, slipper-shaped red or pink flowers appear sporadically. It's grown for its unusual form and ease of care, though it's important to note its toxicity.

Euphorbiaceae Central America, South America, Caribbean
✨ Features: Unique zig-zag stems, variegated foliage options
📖 Read Complete Devil's Backbone Guide
Mallow

Mallow

Malva sylvestris

Malva sylvestris, or Common Mallow, is a herbaceous annual, biennial, or perennial plant known for its attractive, often purple-veined, pink to mauve flowers. It typically grows to a height of 2-4 feet. While primarily an outdoor plant, it is sometimes grown indoors, though it requires very bright light and ample space. People grow it for its ornamental value, edible leaves and flowers, and medicinal properties. It's a common sight in gardens, roadsides, and disturbed areas.

Malvaceae Europe, North Africa, Asia
✨ Features: Edible leaves and flowers, medicinal properties (anti-inflammatory, soothing).
📖 Read Complete Mallow Guide

Quick Plant Comparison

Feature Devil's Backbone Mallow
Light Bright indirect light to partial sun. Avoid intense, direct sunlight, especially during the hottest part of the day. Full sun to partial shade. Requires at least 6 hours of direct sunlight daily to thrive.
Watering Every 2-3 weeks, depending on environmental conditions Every 5-7 days outdoors, less frequently indoors depending on light and temperature.
Humidity 30-50% 30-50%
Temperature 18-24°C 15-25°C
Care Level Easy Expert
Growth Rate Moderate Moderate
Max Height 0.6-1.2 meters (2-4 feet) indoors 0.6-1.2 meters (2-4 feet) outdoors, smaller indoors (0.3-0.6 meters)
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-draining succulent or cactus mix Well-draining loamy soil
Beginner Friendly ✅ Yes ❌ No
Weekly Maintenance 5 minutes weekly 15 minutes weekly

🔬 Botanical Information — Comparing These Plants

Devil's Backbone

Scientific Name Euphorbia tithymaloides
Family Euphorbiaceae
Native To Central America, South America, Caribbean
Also Known As Devil's Backbone, Zig Zag Plant, Pedilanthus tithymaloides, Redbird Cactus, Christmas Candle
Leaves The leaves are fleshy, ovate, and typically green, although variegated forms with white or pink margins are common. They are arranged alternately along the zig-zagging stems.
Flowers It can flower indoors, producing small, slipper-shaped red or pink flowers. However, flowering is not guaranteed and is more common in mature plants grown in optimal conditions.

Mallow

Scientific Name Malva sylvestris
Family Malvaceae
Native To Europe, North Africa, Asia
Also Known As Common Mallow, High Mallow, Cheeseweed Mallow
Leaves The leaves are rounded to kidney-shaped, with lobed or toothed edges. They are typically 5-10 cm in diameter and have a slightly hairy texture. The color is usually a medium to dark green.
Flowers Common Mallow produces attractive, pink to mauve flowers with darker purple veins. The flowers are about 2-5 cm in diameter and bloom from spring to fall. It can flower indoors if given sufficient light, but flowering is less prolific than outdoors.

📏 Size & Growth — Plant Comparison

Devil's Backbone

Height 0.6-1.2 meters (2-4 feet) indoors
Spread 0.3-0.6 meters (1-2 feet)
Growth Rate Moderate
Growth Pattern It grows as an upright, branching shrub with zig-zagging stems. New growth emerges from the tips of the stems.

Mallow

Height 0.6-1.2 meters (2-4 feet) outdoors, smaller indoors (0.3-0.6 meters)
Spread 0.3-0.6 meters (1-2 feet)
Growth Rate Moderate
Growth Pattern Common Mallow grows upright, forming a bushy clump. It can spread through self-seeding, but is not considered aggressively invasive.

🌱 Propagation — Comparing Plant Growth

Devil's Backbone

Methods: Stem cuttings

Difficulty: Easy

Tips: Allow the cut end to callus over for a few days before planting in well-draining soil. Keep the soil slightly moist until roots develop.

Mallow

Methods: Seed, Stem cuttings

Difficulty: Easy

Tips: For seeds, scarify them lightly and sow in spring. Stem cuttings can be taken in late spring or early summer and rooted in moist soil.

✨ Benefits & Features — Comparing Plant Value

Devil's Backbone

The Devil's Backbone is unique due to its zig-zagging stems and fleshy leaves, which give it a distinctive architectural form. The variegated varieties add further visual interest with their colorful foliage.

  • ✓ Adds visual interest with its unique form.
  • ✓ Relatively low-maintenance and easy to care for.
  • ✓ Drought-tolerant, making it suitable for forgetful plant owners.
  • ✓ Can be easily propagated to create new plants.
  • ✓ Adds a touch of the desert to your indoor space.
  • ⚠️ Toxic to pets

Mallow

Common Mallow is known for its edible leaves and flowers, which have a mild, slightly sweet flavor. It also possesses medicinal properties and has been used traditionally to soothe skin irritations and digestive issues. Its ability to attract pollinators makes it a valuable addition to any garden.

  • ✓ Edible leaves and flowers provide nutrients.
  • ✓ Attracts pollinators to the garden.
  • ✓ Medicinal properties offer potential health benefits.
  • ✓ Adds beauty and charm to outdoor spaces.
  • ✓ Can be used in culinary dishes and herbal teas.
  • ⚠️ Toxic to pets

📅 Maintenance Schedule — Plant Care Comparison

Devil's Backbone

Repotting Every 2-3 years, or when the plant becomes root-bound
Pruning Prune to maintain shape and remove any dead or damaged stems.
Fertilizing Balanced liquid fertilizer diluted to half strength, applied every 2-3 months during the growing season (spring and summer)
Seasonal Care Reduce watering in winter during dormancy. Provide bright light year-round.

Mallow

Repotting Repot annually in spring if grown in a container.
Pruning Prune to maintain shape and remove dead or damaged foliage. Deadhead spent flowers regularly.
Fertilizing Balanced liquid fertilizer (10-10-10) diluted to half strength, applied monthly during the growing season (spring and summer).
Seasonal Care In winter, reduce watering and provide protection from frost. In summer, ensure adequate watering and sunlight. Deadhead spent flowers to encourage further blooming.

🌞 Light Requirements

Devil's Backbone

Bright indirect light to partial sun. Avoid intense, direct sunlight, especially during the hottest part of the day.

Low light tolerant: ❌ No

Mallow

Full sun to partial shade. Requires at least 6 hours of direct sunlight daily to thrive.

Low light tolerant: ❌ No

💧 Watering Needs

Devil's Backbone

Allow the soil to dry out completely between waterings. Overwatering can lead to root rot. Water thoroughly when the soil is dry to the touch. Reduce watering frequency during the winter months. Signs of overwatering include yellowing leaves and stem rot. Underwatering can cause leaf drop and shriveling.

Mallow

Water thoroughly when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Signs of underwatering include wilting leaves; overwatering includes yellowing leaves and soggy soil.

🌡️ Temperature & Humidity

Devil's Backbone

Temperature: 18-24°C

Humidity: 30-50%

Mallow

Temperature: 15-25°C

Humidity: 30-50%

🤔 Which Plant Is Right For You?

Devil's Backbone

Devil's Backbone

Euphorbia tithymaloides
Care: Easy Time: 5 minutes weekly Beginner: Yes

Someone looking for a unique and low-maintenance succulent with an interesting architectural form.

✅ Choose This Plant If...

  • You want a low-maintenance plant that doesn't need much attention.
  • You appreciate unique and unusual plant forms.
  • You have a bright, sunny spot in your home.
  • You are looking for a plant that is relatively drought-tolerant.
  • You want a plant that is easy to propagate.

❌ Skip This Plant If...

  • You have pets or small children who might ingest the plant.
  • You are prone to overwatering plants.
  • You don't have a bright enough location.
  • You are looking for a plant with showy flowers.
📍 Ideal Location: Bright windowsill, sunroom, or well-lit shelf
🎨 Style: Modern, Bohemian, Southwestern
🏠 Apartment Friendly: Yes
⚠️ All parts of the plant contain a milky sap that is toxic if ingested or comes into contact with skin or eyes. Can cause irritation, vomiting, diarrhea, and dermatitis in dogs, cats, and horses.
Mallow

Mallow

Malva sylvestris
Care: Expert Time: 15 minutes weekly Beginner: No

Experienced gardeners who want to grow an edible and medicinal plant outdoors.

✅ Choose This Plant If...

  • You want an edible plant with medicinal properties.
  • You enjoy attracting pollinators to your garden.
  • You have a sunny outdoor space.
  • You are an experienced gardener looking for a new challenge.
  • You appreciate the beauty of its delicate flowers.

❌ Skip This Plant If...

  • You have pets that might ingest it.
  • You lack a sunny outdoor space.
  • You are a beginner gardener.
  • You are looking for a low-maintenance indoor plant.
📍 Ideal Location: Sunny garden or patio. If attempting indoors, a south-facing window is essential.
🎨 Style: Cottage garden, Naturalistic, Traditional
🏠 Apartment Friendly: No
⚠️ According to the ASPCA, Mallow contains althea, which is toxic to horses, dogs, and cats. Symptoms include vomiting and diarrhea.

🎯 Quick Verdict

Best for Beginners Devil's Backbone
Pet Friendly Neither - caution
Less Maintenance Devil's Backbone
Apartment Friendly Devil's Backbone

⚡ Key Differences Between These Plants

🎯

Devil's Backbone is rated Easy care level, while Mallow is Expert.

💡 Pro Tips For Comparing These Plants

Devil's Backbone Care Tips

Devil's Backbone is a relatively easy-care succulent that thrives in bright, indirect light and well-draining soil. Avoid overwatering and protect from frost. Be mindful of its toxic sap and keep it away from pets and children.

  • Allow the soil to dry out completely between waterings to prevent root rot.
  • Provide bright, indirect light for optimal growth and color.
  • Fertilize sparingly during the growing season.
  • Wear gloves when handling the plant to avoid skin irritation from the sap.
  • Rotate the plant regularly to ensure even growth.
❄️ Winter: Reduce watering frequency during the winter months as the plant's growth slows down. Ensure the plant is protected from cold drafts and temperatures below 10°C.
☀️ Summer: Provide adequate ventilation and avoid exposing the plant to intense, direct sunlight during the hottest part of the day. Water more frequently as the soil dries out faster in warmer temperatures.

Mallow Care Tips

Common Mallow is primarily an outdoor plant and requires very bright light to thrive indoors. It needs well-draining soil and regular watering. Indoor cultivation is challenging due to its high light requirements and potential for pest infestations. Consistent monitoring is essential.

  • Provide at least 6 hours of direct sunlight daily for optimal growth and flowering.
  • Ensure well-draining soil to prevent root rot.
  • Water deeply but infrequently, allowing the soil to dry slightly between waterings.
  • Fertilize monthly during the growing season with a balanced liquid fertilizer.
  • Protect from frost in winter by mulching around the base of the plant.
❄️ Winter: In winter, reduce watering significantly. If grown outdoors in colder climates, mulch around the base of the plant to protect the roots from frost. Indoor plants should be kept in a cool, bright location.
☀️ Summer: In summer, ensure adequate watering, especially during hot and dry periods. Provide some afternoon shade in extremely hot climates to prevent leaf scorch. Deadhead spent flowers regularly to encourage continued blooming.

⚠️ Common Problems & Solutions — Plant Care Comparison

Devil's Backbone

Common Issues: Root rot, mealybugs, spider mites, leaf drop
Solutions: Root rot: Improve drainage and reduce watering frequency. Mealybugs/Spider mites: Treat with insecticidal soap or neem oil. Leaf drop: Adjust watering and light conditions.

Mallow

Common Issues: Aphids, Spider mites, Root rot
Solutions: Aphids/Spider mites: Insecticidal soap or neem oil. Root rot: Improve drainage, reduce watering frequency.

❓ Frequently Asked Questions — Comparing These Plants

Devil's Backbone

What are the light requirements for Devil's Backbone?

Devil’s Backbone thrives in bright, indirect light. It can tolerate some direct sunlight, especially in the morning or late afternoon, but avoid prolonged exposure to intense midday sun, which can scorch the leaves. An east-facing window is often ideal, providing ample morning light without the harshness of the afternoon sun. A south- or west-facing window can also work, but be sure to filter the light with a sheer curtain or move the plant slightly away from the window to prevent sunburn.

How do I care for Devil's Backbone?

Devil’s Backbone is a relatively easy-to-care-for succulent. Provide it with bright, indirect light, although it can tolerate some direct sun. Water thoroughly only when the soil is completely dry to the touch, typically every 2-4 weeks, depending on environmental conditions. Ensure the pot has drainage holes to prevent root rot. Use a well-draining succulent or cactus potting mix.

How do I propagate Devil's Backbone?

Devil’s Backbone is easily propagated through leaf cuttings, offsets, and stem cuttings.

Mallow

What are the light requirements for Mallow?

Mallow plants thrive in full sun, requiring at least 6 hours of direct sunlight each day to promote abundant blooming. Insufficient light can lead to leggy growth and reduced flower production. An east-facing or south-facing window is ideal for indoor Mallows. If natural light is limited, supplement with a grow light. Rotate the plant regularly to ensure even light exposure on all sides. Avoid placing Mallows in excessively shady locations, as this can weaken the plant and make it more susceptible to pests and diseases. When transitioning Mallows from indoors to outdoors, gradually acclimate them to the increased sunlight to prevent leaf burn.

How do I care for Mallow?

Mallow plants require well-draining soil and should be watered when the top inch of soil feels dry. Provide them with at least 6 hours of sunlight daily for optimal blooming. Fertilize regularly during the growing season with a balanced fertilizer, switching to a bloom-boosting formula as flowering begins. Deadhead spent flowers to encourage continuous blooming. Mallows prefer moderate humidity levels; increase humidity if needed by using a humidifier or placing the plant on a pebble tray. Prune regularly to maintain shape and remove any dead or diseased growth. Protect from frost in colder climates, either by moving potted plants indoors or providing adequate insulation. Monitor for pests and diseases and treat promptly. Repot when the plant becomes root-bound.

How do I propagate Mallow?

Mallow can be propagated through division, stem cuttings, and seed.

Last updated: April 29, 2026 — Plant care data reviewed and verified by our editorial team.