sea urchin cactus
- available to order from summer
- 10.5cm pot -9cm tall
- Position: bright light
- Compost: specialist cacti compost
- Rate of growth: slow
- Hardiness: tender (indoors only)
- Current height: approximately 9cm (+ or - 10% including the pot)
- Pot covers: choose a 12cm pot cover to give a good fit over the pot.
Commonly called the sea urchin cactus because of its distinctive rounded and ribbed shape, this great little cactus looks stylish - and as it has relatively few thorns, it's more 'user friendly' than many of the others. It's primarily grown for its simple form, but occasionally in spring or summer, it may also produce a white star-shaped flower that opens at night. Please note that the pot in the photograph is not supplied with the plant (which is sent out in a black plastic pot). They do however make excellent potted plants, and if you wish to pot yours up, we do have a wide range of pots on our website to choose from.
- Home care: Place it in a bright spot and in spring and summer, water when the compost gets dry, but make sure it never sits in excess water for any length of time. In autumn and winter cut back on the watering but do not let it dry out completely. Avoid a humid atmosphere (no bathrooms or steamy kitchens) and in the warmer months, open a window or door occasionally so it can enjoy the fresh air. Repot every year or two into a slightly larger pot using cacti compost. You will find it easier to tackle if you concertina a couple of sheets of newspaper and then fold these around the spines, leaving a 'tail' that you can use to lift the plant out of one pot and into another. Otherwise invest in some thorn-proof gloves!