Caper spurge (Euphorbia lathyris)

Care, watering, light and tips for Caper spurge on Floravia.

Caper spurge

Quick facts

About Caper spurge

Euphorbia lathyris, commonly known as mole plant or caper spurge, is a biennial herbaceous plant from the Euphorbiaceae family, recognized for its distinctive glaucous foliage and erect stems that can reach up to 1.5 meters in height. Its spirally arranged leaves give it a unique architectural appearance, making it ideal for adding structure and color to garden borders or as an ornamental plant in beds. It is valued for its particular aesthetic and for the popular belief that it deters moles, although this latter property is not scientifically proven.

Native range

Europe and temperate Asia

Care tips

This euphorbia prefers full sun to partial shade exposure and adapts to a wide range of soils, though it thrives best in well-drained and not overly rich substrates. Watering should be moderate, allowing the soil to dry out between waterings, as it is drought-tolerant once established. A common mistake is overwatering, which can lead to root rot; it's also crucial to handle it with gloves due to its irritating sap.

How to save a dying Caper spurge

Warning signs
Yellowing and drooping lower leaves, soft stems, stunted growth.
First aid
Check drainage and soil moisture. If waterlogged, repot into dry soil. If dry, water moderately.
What kills it
Overwatering and poor drainage, leading to root rot. Also, complete shade.
Can it be saved?
Yes, if rot hasn't affected the main stem. Act quickly.

Open in Floravia — reminders and AI advice