Introducing the Euphorbia milii grandiflora ‘Sonia’, which is a striking and resilient flowering plant that has captured the attention of gardeners and indoor plant enthusiasts alike. Renowned for its vibrant flowers and thorny stems, this variety of Euphorbia  milii is particularly notable for its larger blooms compared to the typical Crown of Thorns varieties. Euphorbia milii ‘Sonia’ is cherished not only for its ornamental appeal but also for its hardy nature, making it a popular choice for both indoor and outdoor settings. 

Euphorbia milii grandiflora ‘Sonia’ is characterized by its robust, woody stems covered in sharp, formidable thorns.

The plant’s leaves are bright green, oval-shaped, and somewhat succulent, allowing them to store water efficiently.

Euphorbia milii ‘Sonia’ is a relatively compact plant, making it suitable for various garden sizes and container growing. At maturity, it typically grows up to 2 feet tall.

Its slow to moderate growth rate allows it to maintain a manageable size, making it ideal for indoor cultivation or as an accent plant in outdoor gardens. 

The flowers of Euphorbia milii ‘Sonia’ are the highlight of this plant. ‘Sonia’ cultivar is a new variety with bright red to pink flowers and white petal edges; some flowers are adorned with a white heart. These small, inconspicuous true flowers are long-lasting, often staying on the plant for several weeks. The blooming period can extend almost year-round, with peak flowering occurring in spring and summer. The bright colors of the flowers make ‘Sonia’ a popular choice for adding a splash of color to any garden or indoor space. 

When it comes to care, the Euphorbia milii plant thrives in bright, direct sunlight. When grown indoors, placing it near a south or west-facing window will provide the light intensity it needs. The Euphorbia milii ‘Sonia’ prefers temperatures between 65°F and 75°F. It can tolerate occasional dips in temperature, but it should be kept away from cold drafts or sudden temperature changes.  

For outdoor cultivation, it should be planted in a location where it receives full sun for at least 6 hours a day. This plant is hardy in USDA zones 9 to 11. In these regions, it can be grown outdoors year-round. In cooler climates, it should be brought indoors during the winter months or protected from frost. This plant is drought-tolerant, requiring infrequent watering. A well-draining soil mix is essential for Euphorbia milii ‘Sonia.’ To prevent rot, allow the stem to dry and callous for a few days after cutting. Overwatering is one of the few ways to damage this otherwise resilient plant. 

Euphorbia milii ‘Sonia’ can be easily propagated through stem cuttings. The best time to take cuttings is during the growing season, typically in spring or early summer. After cutting, allow the stem to dry and callous over for a few days to prevent rot. Once calloused, the cutting can be planted in well-drained soil and placed in a warm, bright location. With proper care, the cutting will root and begin to grow within a few weeks. Propagation is an excellent way to expand your collection or share this beautiful plant with others. 

Overall, the Euphorbia milii grandiflora ‘Sonia’ is a stunning and resilient plant that offers both aesthetic appeal and ease of care. Whether grown indoors as a houseplant or outdoors in a suitable climate, it is sure to bring vibrant color and interest to any space.