Sun spurge
Euphorbia helioscopia · Euphorbiaceae
The gardener's calendar
Ideal time to plant sun spurge: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Deciduous
- Flowering
- Spring to summer (April-June)
- Adult size
- 30 to 60 cm in height
- Growth
- Fast
- Hardiness
- Not very hardy (protect in winter)
- Origin
- Temperate Europe and Western Asia
- Soil type
- Well-drained, tolerant
Care
Light exposure
Spurge prefers a sunny exposure, which promotes compact growth and generous flowering. It also tolerates partial shade but becomes more leggy in such conditions. Avoid overly shaded areas to maintain its balanced form.
Watering
Water regularly during the spring and summer growing period to keep the soil slightly moist, without waterlogging. Gradually reduce watering in autumn. In winter, let the soil dry out more between waterings.
Soil
Plant the spurge in well-drained soil enriched with moderate organic matter. A light substrate, even gravelly, works perfectly. Avoid overly compact soil that would cause water to stagnate around the roots.
Pruning and cutting
Pinch back young stems in spring to encourage a bushier form. After flowering, prune lightly to maintain a harmonious shape. Remove dead or weak stems at the end of winter.
Fertilizer
Apply a balanced fertilizer every 15 days during active growth (spring-summer). Reduce applications in autumn and stop completely in winter. Moderate feeding is sufficient; spurge is not a heavy feeder.
Diseases and pests
Watch for whiteflies and aphid attacks, especially indoors or under protection. Powdery mildew can develop in stagnant humidity and poor air circulation. Ensure good ventilation and avoid wetting the foliage.
Did you know?
Spurge owes its colorful nickname to its flowers that bloom early in the morning and close in the afternoon, precisely following the sun's movements. This heliotropism fascinated ancient botanists, who saw it as proof of plant intelligence. In traditional herbal medicine, this species has long been used for its supposed properties, but its irritating sap requires great caution.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
Add this plant to my garden →Plants from the same family
- Wood spurgeEuphorbia amygdaloides
- Caper spurgeEuphorbia lathyris
- Albanian spurgeEuphorbia characias
- Spiny spurgeEuphorbia spinosa
- Garden crotonCodiaeum variegatum
- Griffith's spurgeEuphorbia griffithii
Tips generated and checked by Viridia — adapt them to your local climate.