


Euphorbia horrida (WA Prohibited)
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Euphorbia horrida is a spiny, columnar succulent species native to the arid interior of South Africa, particularly the Karoo region, where it grows in well-drained, stony soils under full sun. It forms upright to slightly clumping stems with pronounced vertical ribs and thick, paired spines that resemble those of many cacti. Stem colour ranges from glaucous blue-green to greyish green and often intensifies under strong light. The spines, emerging from hardened stipules, are reddish when young and age to a grey or brown tone. Small, yellow-green cyathia appear near the upper ribs of mature stems, usually during the warmer growing season.
Care Tips:
- Light – Requires full sun or very bright light; promotes compact growth and spine development
- Water – Water infrequently; allow the soil to dry thoroughly between waterings
- Humidity – Prefers dry air and good ventilation; avoid prolonged humidity
- Media – Use a sharply draining mix with coarse sand or pumice
- Temperature – Maintain above 10°C; protect from frost and excessive moisture
- Fertiliser – Feed with a diluted cactus fertiliser during active growth
- Repotting – Repot only when rootbound or when renewing depleted soil
Additional Notes:
- Known to be toxic
Shipping Schedule and Biosecurity Information
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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

Size: 66mm pot


