Euphorbia vs Peacock Moss Plant Comparison

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

Euphorbia

Euphorbia

Euphorbia milii

VS
Peacock Moss

Peacock Moss

Selaginella willdenowii

Euphorbia

Euphorbia

Euphorbia milii

Euphorbia milii, commonly known as Crown of Thorns, is a succulent shrub characterized by its thorny stems and vibrant bracts surrounding small, inconspicuous flowers. Native to Madagascar, it's a popular ornamental plant grown for its drought tolerance and long-lasting blooms. The plant features grey-brown thorny stems and oval-shaped green leaves that are often deciduous. While it can be grown indoors, it thrives best with ample sunlight, making it more suitable for outdoor environments in warmer climates. People grow it for its unique appearance and relatively easy care.

Euphorbiaceae Madagascar
✨ Features: Long-lasting blooms, drought tolerance, unique thorny appearance.
📖 Read Complete Euphorbia Guide
Peacock Moss

Peacock Moss

Selaginella willdenowii

Peacock Moss is a fern-like plant, though technically a spikemoss, known for its iridescent blue-green foliage. The leaves appear to shimmer with a metallic sheen, creating a rainbow effect in the right light. It's a low-growing, spreading plant that thrives in humid environments. While it can be grown indoors, it requires specific conditions to flourish, making it more challenging than many common houseplants. It is grown for its unique foliage and visual appeal.

Selaginellaceae Southeast Asia (Malaysia, Singapore, Indonesia, Philippines)
✨ Features: Iridescent blue-green foliage, unique texture
📖 Read Complete Peacock Moss Guide

Quick Plant Comparison

Feature Euphorbia Peacock Moss
Light Full sun to partial shade. Requires at least 4-6 hours of direct sunlight daily for optimal flowering. Bright, indirect light. Avoid direct sunlight, which can scorch the delicate foliage.
Watering Every 2-3 weeks, depending on environmental conditions and pot size. Every 2-3 days, depending on humidity and temperature
Humidity 30-50% 70-90%
Temperature 18-27°C 18-24°C
Care Level Moderate Moderate
Growth Rate Slow Moderate
Max Height Indoors: 30-60 cm. Outdoors: Up to 1.8 meters. 15-30 cm
Pet Safety ❌ Toxic To Pets ✅ Safe
Soil Well-draining succulent or cactus mix Well-draining, moisture-retentive mix such as peat moss, perlite, and vermiculite.
Beginner Friendly With Caution With Caution
Weekly Maintenance 10 minutes weekly 15 minutes weekly

🔬 Botanical Information — Comparing These Plants

Euphorbia

Scientific Name Euphorbia milii
Family Euphorbiaceae
Native To Madagascar
Also Known As Crown of Thorns, Christ Plant, Christ Thorn
Leaves The leaves are oval-shaped, green, and typically 2-5 cm long. They are often deciduous, meaning they may drop off during periods of stress or dormancy, especially in winter.
Flowers It can flower indoors with sufficient light, producing small, inconspicuous flowers surrounded by brightly colored bracts. The bracts come in various colors, including red, pink, yellow, and white.

Peacock Moss

Scientific Name Selaginella willdenowii
Family Selaginellaceae
Native To Southeast Asia (Malaysia, Singapore, Indonesia, Philippines)
Also Known As Peacock Moss, Willdenow's Spikemoss, Rainbow Moss
Leaves The leaves are small, scale-like, and arranged in overlapping rows along the stems. They have a delicate, feathery appearance. The color is typically a vibrant blue-green with an iridescent sheen that appears to shift depending on the angle of light.
Flowers Peacock Moss rarely, if ever, flowers indoors.

📏 Size & Growth — Plant Comparison

Euphorbia

Height Indoors: 30-60 cm. Outdoors: Up to 1.8 meters.
Spread 30-60 cm
Growth Rate Slow
Growth Pattern It grows as an upright shrub with thick, thorny stems. The plant can become somewhat leggy if not pruned regularly, but it generally maintains a compact form with proper care.

Peacock Moss

Height 15-30 cm
Spread 30-60 cm
Growth Rate Moderate
Growth Pattern It grows as a low-spreading, fern-like plant. It forms a dense mat of foliage, with stems that branch out horizontally. It does not climb or vine.

🌱 Propagation — Comparing Plant Growth

Euphorbia

Methods: Stem cuttings

Difficulty: Moderate

Tips: Allow the cut end to callus over for a few days before planting in well-draining soil. Use gloves to avoid skin irritation from the sap.

Peacock Moss

Methods: Stem cuttings, Division

Difficulty: Moderate

Tips: Take stem cuttings and place them in a humid environment, such as a terrarium or under a humidity dome. Keep the soil consistently moist. Division can be done when repotting, separating the plant into smaller clumps.

✨ Benefits & Features — Comparing Plant Value

Euphorbia

The Crown of Thorns is unique due to its thorny stems and the colorful bracts that surround its small flowers. It's a succulent shrub that can tolerate drought conditions, making it a low-maintenance option for those who tend to forget to water their plants.

  • ✓ Drought-tolerant and water-wise
  • ✓ Adds unique texture and visual interest to indoor spaces
  • ✓ Long-lasting blooms provide color
  • ✓ Relatively pest-resistant
  • ✓ Can be grown in a variety of containers
  • ⚠️ Toxic to pets

Peacock Moss

The iridescent blue-green foliage is its most striking feature, creating a shimmering effect that is rare among houseplants. Unlike true mosses, it has vascular tissue, allowing it to grow taller and more upright.

  • ✓ Adds a unique and visually appealing element to your indoor space.
  • ✓ Creates a calming and relaxing atmosphere.
  • ✓ Can help to increase humidity levels in the surrounding area.
  • ✓ Offers a connection to nature and a sense of tranquility.
  • ✓ Provides an interesting talking point for guests.
  • 🐾 Pet Safe

📅 Maintenance Schedule — Plant Care Comparison

Euphorbia

Repotting Every 2-3 years, or when the plant becomes root-bound.
Pruning Prune to remove dead or damaged stems and to shape the plant. Wear gloves to avoid skin irritation.
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. Increase watering and fertilizing during the growing season (spring and summer).

Peacock Moss

Repotting Every 1-2 years, or when the plant becomes root-bound.
Pruning Trim any brown or damaged foliage to maintain appearance and prevent the spread of disease.
Fertilizing Diluted liquid fertilizer (half strength) every 2-4 weeks during the growing season (spring and summer). Do not fertilize in the winter.
Seasonal Care In winter, reduce watering slightly as growth slows. Maintain humidity levels. In summer, ensure adequate moisture and protect from direct sunlight.

🌞 Light Requirements

Euphorbia

Full sun to partial shade. Requires at least 4-6 hours of direct sunlight daily for optimal flowering.

Low light tolerant: ❌ No

Peacock Moss

Bright, indirect light. Avoid direct sunlight, which can scorch the delicate foliage.

Low light tolerant: ❌ No

💧 Watering Needs

Euphorbia

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. Signs of overwatering include yellowing leaves and a mushy stem. Underwatering is indicated by shriveled leaves and stunted growth.

Peacock Moss

Keep the soil consistently moist but not waterlogged. Water when the top inch of soil feels slightly dry. Overwatering can lead to root rot, while underwatering will cause the foliage to dry out and turn brown. Use distilled or rainwater to avoid mineral buildup.

🌡️ Temperature & Humidity

Euphorbia

Temperature: 18-27°C

Humidity: 30-50%

Peacock Moss

Temperature: 18-24°C

Humidity: 70-90%

🤔 Which Plant Is Right For You?

Euphorbia

Euphorbia

Euphorbia milii
Care: Moderate Time: 10 minutes weekly Beginner: With-caution

Experienced plant owners looking for a unique and drought-tolerant flowering succulent.

✅ Choose This Plant If...

  • You want a drought-tolerant plant that requires minimal watering.
  • You appreciate unique and sculptural plants with a distinctive appearance.
  • You have a sunny location where the plant can thrive.
  • You are looking for a plant that can flower for extended periods.
  • You are an experienced plant owner comfortable handling potentially toxic plants.

❌ Skip This Plant If...

  • You have pets or small children who might ingest the plant.
  • You are a beginner plant owner and prefer low-maintenance options.
  • You don't have a location with sufficient sunlight.
  • You are sensitive to latex, as the sap can cause skin irritation.
📍 Ideal Location: South-facing windowsill or sunroom.
🎨 Style: Desert, Southwestern, Eclectic
🏠 Apartment Friendly: Yes
⚠️ All parts of the plant contain a milky sap that is toxic to dogs, cats, and horses. Symptoms include oral irritation, vomiting, diarrhea, and skin irritation upon contact.
Peacock Moss

Peacock Moss

Selaginella willdenowii
Care: Moderate Time: 15 minutes weekly Beginner: With-caution

Experienced plant enthusiasts who can provide the high humidity and consistent moisture this plant needs.

✅ Choose This Plant If...

  • You are looking for a unique and visually striking plant.
  • You can provide a high-humidity environment, such as a terrarium.
  • You enjoy a plant that requires a bit more attention and care.
  • You want a plant with a distinctive iridescent sheen.
  • You are looking for a plant that stays relatively small and compact.

❌ Skip This Plant If...

  • You struggle to maintain high humidity levels in your home.
  • You tend to overwater or underwater your plants.
  • You are looking for a low-maintenance plant.
  • You don't have a bright, indirect light source available.
📍 Ideal Location: Bathroom, terrarium, or near a humidifier.
🎨 Style: Tropical, Eclectic, Woodland
🏠 Apartment Friendly: Yes
⚠️ According to the ASPCA, Selaginella species are generally considered non-toxic to dogs, cats, and horses.

🎯 Quick Verdict

Best for Beginners Neither ideal
Pet Friendly Peacock Moss ✓
Less Maintenance Similar effort
Apartment Friendly Both work!

⚡ Key Differences Between These Plants

📈

Euphorbia has slow growth, while Peacock Moss grows moderate.

💡 Pro Tips For Comparing These Plants

Euphorbia Care Tips

Crown of Thorns requires bright sunlight and well-draining soil. It's relatively drought-tolerant but susceptible to root rot if overwatered. Handle with care due to the thorns and toxic sap. Indoor flowering may be less prolific than outdoors.

  • Provide at least 4-6 hours of direct sunlight daily for optimal flowering.
  • Allow the soil to dry out completely between waterings to prevent root rot.
  • Wear gloves when handling the plant to avoid skin irritation from the sap.
  • Fertilize sparingly during the growing season with a balanced liquid fertilizer.
  • Prune regularly to maintain shape and remove dead or damaged stems.
❄️ Winter: Reduce watering significantly during the winter months as the plant enters a period of dormancy. Ensure the plant still receives adequate light, even if it's less intense than in summer. Avoid fertilizing during this time.
☀️ Summer: Increase watering slightly during the summer months as the plant actively grows. Fertilize every 2-3 months with a balanced liquid fertilizer. Provide protection from intense afternoon sun to prevent leaf scorch.

Peacock Moss Care Tips

Peacock Moss requires high humidity and consistent moisture, making it more challenging to grow indoors than many common houseplants. It thrives in terrariums or enclosed environments where humidity can be maintained. Proper lighting is crucial to maintain its iridescent color. It is not drought-tolerant.

  • Maintain high humidity by misting regularly or using a humidifier.
  • Use distilled or rainwater to avoid mineral buildup in the soil.
  • Provide bright, indirect light to maintain the iridescent color.
  • Ensure good air circulation to prevent fungal diseases.
  • Repot in spring to refresh the soil and provide more space for growth.
❄️ Winter: Reduce watering slightly during the winter months as growth slows. Maintain humidity levels and avoid placing the plant near cold drafts.
☀️ Summer: Ensure adequate moisture during the summer months, as the plant may dry out more quickly. Protect from direct sunlight to prevent scorching.

⚠️ Common Problems & Solutions — Plant Care Comparison

Euphorbia

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

Peacock Moss

Common Issues: Brown leaf tips, Fungal diseases, Lack of iridescent color, Root rot
Solutions: Increase humidity, improve air circulation, provide proper lighting, ensure well-draining soil and avoid overwatering.

❓ Frequently Asked Questions — Comparing These Plants

Euphorbia

What are the light requirements for Euphorbia?

Euphorbias need bright, indirect sunlight for optimal growth. Insufficient light can lead to etiolation (stretching) and weak growth. South- or west-facing windows are ideal, but be cautious of intense afternoon sun, which can scorch the plant. If natural light is limited, supplement with a grow light. Rotate the plant regularly to ensure even growth on all sides. A minimum of 6 hours of bright light daily is recommended. Observe the plant for signs of light stress, such as pale coloration or elongated stems, and adjust its position accordingly.

How do I care for Euphorbia?

Euphorbias, as succulents, thrive in bright light and well-draining soil. Water thoroughly only when the soil is completely dry to the touch, typically every 2-4 weeks, depending on the environment. Ensure the pot has drainage holes to prevent root rot. During the growing season (spring and summer), fertilize sparingly with a balanced, diluted succulent fertilizer. Reduce watering significantly in the fall and winter during their dormant period. Provide good air circulation to prevent fungal diseases. Repot every 2-3 years or when the plant becomes root-bound. Handle with care, as the milky sap is toxic and can cause skin irritation. Protect from frost and temperatures below 50°F (10°C).

How do I propagate Euphorbia?

Euphorbias can be propagated through leaf cuttings, offsets, or stem cuttings. For stem cuttings, allow the cut end to callous over for several days before planting in well-draining soil. For leaf cuttings, place the leaf on top of the soil and wait for roots to develop. Offsets can be carefully separated from the parent plant and planted individually. Always wear gloves and eye protection when handling Euphorbia sap, as it can cause skin irritation. Keep the cuttings in a warm, bright location and water sparingly until roots have formed. Propagation is best done during the growing season (spring or summer).

Peacock Moss

What are the light requirements for Peacock Moss?

Peacock Moss requires bright, indirect light to maintain its vibrant coloration and healthy growth. Direct sunlight can scorch its delicate foliage, so it’s best to avoid placing it in a location where it will receive intense sun exposure. An east-facing window or a spot a few feet away from a south- or west-facing window is ideal. If the plant is not receiving enough light, its colors may become dull and less vibrant. Supplemental lighting, such as a grow light, can be used if natural light is insufficient. Rotate the plant periodically to ensure even light exposure on all sides. The goal is to mimic the filtered light conditions of its natural rainforest habitat.

How do I care for Peacock Moss?

Peacock Moss thrives in consistently moist, humid conditions. Water thoroughly when the top inch of soil feels slightly dry, using distilled or rainwater to avoid mineral buildup. Maintain high humidity by misting regularly, using a humidifier, or placing the plant on a pebble tray filled with water. Provide bright, indirect light, avoiding direct sunlight which can scorch the delicate foliage. The ideal temperature range is between 65-75°F (18-24°C). Plant in a well-draining, moisture-retentive potting mix such as a mix of peat moss, perlite, and vermiculite. Fertilize sparingly during the growing season (spring and summer) with a diluted liquid fertilizer. Prune any dead or yellowing fronds to encourage healthy growth. Regularly check for pests and address any infestations promptly. A terrarium is an ideal environment for this plant.

How do I propagate Peacock Moss?

Peacock Moss can be propagated through division or spores. For division, gently separate the plant into smaller clumps, ensuring each clump has healthy roots and foliage. Plant each division in a well-draining, moisture-retentive potting mix. Keep the divisions consistently moist and humid until they are established. Spore propagation is more challenging but can be achieved by collecting spores from mature fronds and sowing them on a sterile substrate. Maintain high humidity and provide indirect light. Division is the easier and more common method. Successful propagation requires patience and consistent care. Provide a warm and humid environment for best results.

Last updated: April 30, 2026 — Plant care data reviewed and verified by our editorial team.