Euphorbia lophogona
Images by part: leaf (5) · flower (5) · fruit (0) · bark (4) · habit (3) · other (0)

Euphorbia lophogona

Crown of thorns · Serena's flower

Tier 2 Difficulty: easy Water: low Light: partial_sun
Water every
7 days
Temperature
20–37 °C
Soil pH
6–7
Hardiness
Zone 10–12
Click count
454
Observations
421

Description

Source: leafsnap

Euphorbia lophogona, commonly known as the Madagascar Jewel, is a succulent plant native to Madagascar and part of the Euphorbia family. This unique plant features thick, fleshy stems that grow upright and can reach heights of up to 60 cm. The stems are adorned with small, green leaves arranged in pairs along the length. During its blooming season, from late winter to early spring, Euphorbia lophogona produces small, yellow-green flowers at the tips of its stems. These flowers are complemented by bright red bracts that add a striking pop of color. This succulent is low-maintenance and can thrive both indoors and outdoors, provided it receives at least six hours of bright light each day. It prefers well-draining soil and requires occasional watering during its growing season, allowing the soil to dry out between waterings. For centuries, indigenous people of Madagascar have used Euphorbia lophogona for its medicinal properties, particularly its anti-inflammatory effects, which are effective against skin irritations such as eczema and psoriasis. Overall, this distinctive succulent is an excellent addition to any plant collection, thanks to its minimal care requirements and stunning appearance during its blooming period.

Care Guide

💧 Water Every 7 days
Suggested frequency: Every 7 days
☀️ Light Partial sun

Euphorbia lophogona comes from habitats with dappled light, for example the understory of forests or rocky locations that offer natural shade. It prefers partial sun but can also tolerate exposure to full sun.

Ideal: Partial sun
🌡️ Temperature 20–37.8°C

Euphorbia lophogona does best in warm settings and needs warmer temperatures during the growing period to support growth and metabolic activity. It prefers plenty of sunlight, suitable moisture levels, and good air circulation. However, it can be damaged by very low temperatures and by overwatering. It’s also important to maintain a balance and avoid excessively high heat and overly dry conditions.

Ideal temperature: 20–37.8°C
💨 Humidity normal (40-60%)

This plant will thrive in moderate humidity, which is probably the level in your home. However, misting it a few times a week can be very beneficial. Make sure the room has good ventilation.

Humidity: normal (40-60%)
🪴 Soil 6-7
Soil pH: 6-7
🌱 Fertilizer

Euphorbia lophogona only needs small amounts of fertilizer once or twice a year during the growing season. Do not fertilize in winter or during summer dormancy. Reduce feeding after repotting and wait a couple of months following repotting before applying fertilizer. Fertilizing helps maintain healthy growth and encourages flowering.

🪴 Pot & Repot 2-3 years

Repot Euphorbia lophogona in warmer months, using a container only slightly larger than the current one with good drainage. Use a well-draining cactus or succulent potting mix. Handle the roots and caudex carefully during repotting. After repotting, wait about a week before watering to avoid root rot. Place the plant in a sunny location for best growth.

Suggested frequency: 2-3 years
✂️ Pruning
🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Succulent, Shrub
Life Cycle
Perennial
Genus
Euphorbia
Family
Euphorbiaceae
Hardiness Zone
10-12
Mature Height
61 cm to 91 cm
Mature Spread
30 cm to 46 cm
Leaf Color
Dark Green
Leaf Type
Evergreen
Flower Size
1.02 cm to 2.03 cm
Bloom Time
Summer, Early fall, Mid fall
Planting Time
Spring, Summer, Autumn, Winter
Harvest Time
Late summer, Fall, Early winter
Native Area
Madagascar

Tags (4)

Common Names (2)

en Crown of thorns
en Serena's flower