Also known as Martin's spurge, this is a perennial shrub that is a cross between two species of flowering plants in the spurge family. It has dark green leaves, lime-green flowers, and can grow up to 30 cm in height and 60 cm in spread. It can tolerate full sun or partial shade and grows best in well-drained soil. Euphorbia martinii is easy to grow and can add texture and interest to borders. It can be used in sunny gardens or containers and is tolerant of dry conditions. In late summer or autumn, you can cut back flowering shoots to ground level to retain the plant's shape.

All parts of this plant are highly toxic if ingested, as are all plants in the Euphorbia family, and the milky sap may cause irritation to skin and eyes, so ensure precautions are used when tending to this plant.