Euphorbia milii (Crown of thorns) 八仙花 (15cm pot)

Euphorbia milii, commonly known as Crown of Thorns, is a hardy, evergreen succulent native to Madagascar. Known for its colourful, bract-like flowers, which come in shades of red, pink, yellow, and white, this spiny shrub can grow up to 1 metre in height. The plant gets its name from the thorny, stem-like spines that encircle its stems, and the bright flowers that are actually modified leaves surrounding the tiny true flowers. Crown of Thorns is an excellent ornamental plant, valued for its ability to bloom year-round with minimal care, making it a favourite for both indoor and outdoor gardens.

Plant Care Guide

Light: Crown of Thorns thrives in bright, direct sunlight. It requires at least 4-6 hours of sunlight daily to bloom abundantly. A sunny windowsill or an outdoor spot with plenty of sun is ideal. Too little light may lead to leggy growth and fewer blooms.

Water: Water the plant when the soil is completely dry to the touch, ensuring that the top 2-3 cm of soil has dried out. Be cautious not to overwater, as this can lead to root rot. Water thoroughly, ensuring that excess water drains from the pot. During dry periods, it can tolerate occasional drought.

Soil: Well-draining, sandy, or loamy soil is essential for Euphorbia milii. A cactus or succulent mix works well, providing the right balance of moisture retention and drainage to keep the roots healthy.

Fertilising: Feed the plant with a balanced, water-soluble fertiliser to promote healthy growth and vibrant flowers.

Pests: Crown of Thorns can attract pests such as aphids, scale insects, and mealybugs. Check the plant regularly for signs of infestation, such as discolouration or sticky residue on the leaves. Treat infestations with insecticidal soap or neem oil to prevent further damage.

General Care: Euphorbia milii is a low-maintenance plant but does benefit from occasional cleaning of its leaves to remove dust and improve light absorption. Take care when handling the plant, as its thorns can be sharp and its sap can cause skin irritation. Regular pruning of dead or spent flowers will help maintain its compact shape and encourage new blooms. Keep the plant in a location with good air circulation to avoid fungal issues and ensure it thrives in warm, dry conditions.