Prickly Pear Cactus
This kooky cactus is hardy and easy-to-care for - it usually survives Mexico's arid landscape. It comes with edible fruit too - we've never tried it ourselves but plenty of recipes can be found online. Be careful though - its spikes are deceptively prickly making it the perfect guardian for you desk.
Size: Comes in 13cm growing pot. Approximate height with pot 23cm.
Latin name: Opuntia Vulgaris
Pets: Can cause stomach upset if ingested but we find it highly unlikely they'll want to take a bite!