Euphorbia mammillaris 'Corn Cob' (WA Prohibited)

Euphorbia mammillaris, commonly known as the Corn Cob Euphorbia, is a columnar succulent species native to the Western Cape of South Africa, where it grows in stony, well-drained soils on arid hillsides. It produces thick, upright stems with prominent tubercles arranged in vertical rows, giving it a ribbed, segmented appearance. Each tubercle bears a small reddish spine, and stem colour ranges from bright to glaucous green, often flushing red at the tips with sun exposure. Small cyathia, often white to pink-tinged, may appear at the growing tips during the warmer months.

Care Tips:

• Light – Prefers full sun to bright filtered light; protect from extreme midday heat in hotter climates
• Water – Water thoroughly and infrequently; allow the soil to dry out completely between waterings
• Humidity – Thrives in dry conditions; ensure good airflow and avoid high humidity
• Media – Requires a sharply draining cactus mix with added pumice or coarse sand
• Temperature – Maintain above 10°C; susceptible to cold and frost damage
• Fertiliser – Use diluted cactus fertiliser during active growth in spring and summer
• Repotting – Repot every few years or when the plant outgrows its container

Additional Notes:

• Known to be toxic