Euphorbiaceae
Ritchie's Spurge: Full Sun Plant
Monadenium ritchiei
Ritchie's Spurge is an easy-to-care-for succulent suitable for both beginners and experienced plant enthusiasts. It thrives best in bright, direct light, should be watered sparingly only when the soil is completely dry, and requires very well-draining soil. Keep the plant warm (above 59°F / 15°C) and significantly reduce watering in winter to prevent rot.
Every 7 days
Direct sun
15° - 29°C
% - %
Categories
What is Ritchie's Spurge?
Ritchie's Spurge (Monadenium ritchiei) is a easy-care plant from the Euphorbiaceae family. Ritchie's Spurge (Monadenium ritchiei, synonym Euphorbia ritchiei) is a clumping succulent in the spurge family (Euphorbiaceae), native to Kenya. The plant features a thick, fleshy caudex and upright or decumbent stems with distinct, cone-shaped tubercles and fleshy leaves clustered at the tips of t...
Ritchie's Spurge grows up to 60cm, watering every 7 days, 15°C – 29°C. It is suitable for indoor environments and not safe for pets.
Unlike many tropical plants, Ritchie's Spurge tolerates watering mistakes. Best for beginners. Without precautions, ingestion can cause irritation in pets. Keep out of reach of cats and dogs. Without adequate drainage, root rot can develop within 14 days.
How to Care for Ritchie's Spurge?
TLDR: Ritchie's Spurge needs Direct sun, watering every 7 days, and temperatures between 15-29°C with 40-70% humidity.
How Often Should You Water Ritchie's Spurge?
Water only when the soil is completely dry—check by sticking your finger deep into the pot. During the growing season (spring to fall), watering about once a week is usually sufficient, while in winter, you should reduce this to once a month or only when the plant shows signs of shriveling. Avoid standing water in the pot, as this quickly leads to root rot.
How Much Light Does Ritchie's Spurge Need?
Provide the plant with bright, direct sunlight—ideally at least 6 hours daily. A south-facing window or supplemental grow lights indoors work well. Gradually acclimate the plant to full sunlight to avoid sunburn.
What Is the Best Soil for Ritchie's Spurge?
Use a very well-draining soil mix, such as cactus/succulent soil amended with pumice, perlite, or coarse sand. The pot must have drainage holes so the roots never sit in damp soil.
What Pot Should You Use for Ritchie's Spurge?
Choose a pot with good drainage holes, preferably made of unglazed clay or terracotta, which allows excess moisture to evaporate and reduces the risk of root rot.
Care Schedule
Fertilize
Every 30 days
Repot
Every 912 days
What Is Ritchie's Spurge and Where Does It Come From?
Ritchie's Spurge (Monadenium ritchiei, synonym Euphorbia ritchiei) is a clumping succulent in the spurge family (Euphorbiaceae), native to Kenya. The plant features a thick, fleshy caudex and upright or decumbent stems with distinct, cone-shaped tubercles and fleshy leaves clustered at the tips of the shoots. The leaves often drop during dry periods, and the stems can develop a reddish glow in bright sunlight. In summer and fall, the plant may produce pink flowers (cyathia). Like other Euphorbia species, it contains a white, toxic milky sap (latex) in all parts of the plant.
How to Propagate Ritchie's Spurge?
How Big Does Ritchie's Spurge Grow?
TLDR: Ritchie's Spurge can reach up to 60cm tall with Medium growth rate.
Max height
60cm
Growth rate
Medium
Foliage
Semi-evergreen
Warning: Toxic Plant
This plant can be toxic if ingested. Keep out of reach of:
Plant Uses
Ornamental
Great for decoration
Is your plant showing symptoms?
Click on the symptom to discover possible causes:
What Diseases Commonly Affect Ritchie's Spurge?
TLDR: Ritchie's Spurge is susceptible to 8 known diseases. Monitor regularly for early detection.
Root Rot
Root rot is a serious fungal disease that affects the root system of plants, causing them to decay and die. It is primarily caused by overwatering, poor drainage, or soil-borne fungi such as Pythium, Phytophthora, Rhizoctonia, and Fusarium. The disease thrives in waterlogged conditions where roots are deprived of oxygen, making them susceptible to fungal infection.
Powdery Mildew
Powdery mildew is a common fungal disease caused by various fungi species including Erysiphe, Podosphaera, Oïdium, and Leveillula. It affects over 10,000 plant species worldwide. The disease thrives in warm, dry climates with high humidity and appears as a distinctive white powdery coating on plant surfaces.
Leaf Spot
Leaf spot is a common fungal disease caused by various pathogens including Alternaria, Ascochyta, Colletotrichum, Septoria, and Venturia. It primarily affects leaves, causing discolored spots that can lead to premature leaf drop if left untreated.
Sooty Mold
Sooty mold is a fungal disease that develops on surfaces coated with honeydew, a sticky sweet substance secreted by sap-sucking insects like aphids, scale insects, and whiteflies. While it does not directly infect plant tissue, it reduces photosynthetic capacity by blocking sunlight and diminishes the plant's aesthetic appearance.
Meaning & Symbolism
Like other Euphorbia species, Ritchie's Spurge is often associated with endurance and adaptability—a plant that survives through drought and harsh conditions.
Compare with similar plants
| Attribute | Difficulty | Light | Watering | Pet Safe |
|---|---|---|---|---|
| Field Maple | Easy | Bright indirect | 14d | ✓ |
| Silver Birch | Easy | Direct sun | 14d | ✓ |
| Common Blanketflower | Easy | Direct sun | 10d | ✓ |
| Cushion Bush | Easy | Direct sun | 14d | ✓ |
