Crown of Thorns
Euphorbia milii
Crown of Thorns is a striking succulent shrub with thorny stems and long-lasting colorful bracts. Native to Madagascar, it blooms nearly year-round and is cherished for its resilience and symbolic significance.
Euphorbiaceae (Spurge family)
Nearly year-round, especially from late winter through fall indoors; year-round in tropical climates
Symbolism & Meanings
Key Meanings
Perfect For
Color Meanings
Similar flowers: christmas cactuss and cactus (prickly pear)s also share similar meanings.
Cultural Significance
The plant is steeped in Christian symbolism, with legend suggesting its stems were used to create the crown of thorns worn by Jesus at his crucifixion. While this is likely apocryphal, the association has made it a meaningful plant for many believers. The plant's resilience and ability to bloom abundantly despite harsh conditions symbolize endurance and faith.Shop Our Floral Collection
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Physical Characteristics
Natural Habitat
Growing Guide
Sunlight
Full sun (at least 6 hours) for best flowering; bright indirect light indoors
Water
Low to moderate; drought-tolerant once established; allow soil to dry between waterings
Soil
Well-drained, Sandy, Rocky, Cactus/succulent mix
Expert Growing Tips
Wear gloves when handling; sap is toxic and can cause skin irritation
Provide well-drained soil to prevent root rot
Fertilize lightly during active growth to enhance blooming
Prune leggy stems to maintain compact shape
Needs darkness at night to initiate flowering
Uses & Benefits
Ornamental Uses
- Houseplant for sunny windowsills
- Container gardens and patios
- Rock gardens and xeriscapes
- Desert landscapes and Mediterranean gardens
- Low hedges in frost-free climates
Traditional Uses
- Not commonly used medicinally due to toxicity
- Historically, some Euphorbia species used in traditional medicine, but Crown of Thorns is primarily ornamental
- All parts are toxic if ingested; sap can cause skin and eye irritation
Disclaimer: Information provided is for educational purposes only. Consult healthcare professionals before using any plant medicinally.
Further Reading
Frequently Asked Questions about the Crown of Thorns
Is Crown of Thorns poisonous?
Yes, Crown of Thorns is poisonous. All parts of the plant contain toxic sap that can cause skin irritation, and ingestion can lead to vomiting, diarrhea, and other serious symptoms in humans and pets.
How often does Crown of Thorns bloom?
Crown of Thorns can bloom nearly year-round with proper care, especially when grown indoors with adequate sunlight. In tropical climates, it produces flowers continuously throughout the year.
Why is my Crown of Thorns not flowering?
Crown of Thorns needs full sun (at least 6 hours daily) to flower. Insufficient light, over-fertilizing, or lack of darkness at night can prevent blooming. Ensure the plant is healthy and gets proper light.
How do you propagate Crown of Thorns?
Propagate Crown of Thorns from stem cuttings. Cut 3-4 inch tips, let the sap dry for 2-3 days, then plant in well-draining soil. Roots should develop in 5-8 weeks with warm temperatures.
Can Crown of Thorns grow indoors?
Yes, Crown of Thorns makes an excellent houseplant. Place it near a sunny window where it receives at least 6 hours of direct sunlight daily for best flowering and growth.
Available Colors
Quick Facts
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Christmas Cactus
Schlumbergera × buckleyi
Christmas cactus is a popular holiday houseplant producing vibrant tubular flowers during winter months, symbolizing endurance, protection, and festive celebration.
Cactus (Prickly Pear)
Opuntia spp.
Cactus flowers, particularly those of Prickly Pear, produce stunning blooms in vibrant colors despite their spiny protection. These remarkable flowers symbolize endurance, protection, and the beauty that can emerge from life's most challenging circumstances.
Pachypodium
Pachypodium lamerei (and other spp.)
Pachypodium are distinctive succulent plants with thick, spiny trunks and fragrant white flowers. They symbolize endurance, resilience, and strength through adversity.