Euphorbia polygona is a spiny, columnar succulent species native to the Eastern Cape of South Africa, where it grows in arid, stony flats and slopes with excellent drainage. It forms upright, ribbed stems that are typically grey-green to bluish-grey, often covered in a powdery bloom. The ribs are sharply defined and lined with short, paired spines that emerge from hardened stipules. Over time, the plant forms small clumps or solitary columns depending on conditions. During the growing season, mature specimens may produce dark purple to nearly black cyathia near the tips of the stems.
Care Tips:
Light – Requires full sun to partial sun; strong light helps maintain compact form and healthy colour
Water – Water infrequently; allow soil to dry completely between waterings
Humidity – Best grown in dry conditions with good airflow
Media – Use a sharply draining cactus mix with added sand or pumice
Temperature – Maintain above 10°C; protect from frost and excessive damp
Fertiliser – Apply diluted cactus fertiliser during the active growing season
Repotting – Repot every few years or when the plant becomes rootbound
Additional Notes:
Known to be toxic
Shipping Schedule and Biosecurity Information
expand_more
Dispatch & Shipping Information
Non-Biosecurity States (QLD, NSW, ACT, VIC, SA): We now offer two dispatches per week for these regions:
Tuesday Dispatch: Orders placed by Sunday 11:59 PM AEST.
Friday Dispatch: Orders placed by Wednesday 11:59 PM AEST. Orders placed after these cut-offs will be dispatched on the next available day.
Biosecurity States (WA, NT, TAS): These orders require mandatory biosecurity treatment (PHC) and follow a specific weekly schedule:
Cut-off: Orders must be placed by Thursday 11:59 PM AEST.
Dispatch Day: Orders are processed over the weekend and dispatched on Tuesday.
Plant Health Certification (PHC) Fees:
$20 fee applies to WA orders.
$10 fee applies to NT and TAS orders. This fee is per order (not per plant) and is included in your shipping costat checkout.
Important Note: We operate independently from Collectors Corner. For any enquiries, please refer to our contact page
