Peperomia prostrata is an unusual trailing vine with thick, round succulent leaves. Resembling tiny little turtle shells (hence the name, string of turtles) they’re a deep green colour with beautiful light venation. Hailing from South America, it’s a surprisingly versatile plant and a common feature in – and out – of terrariums, planters and pots around the world. Peperomia prostrata is often displayed in a way that lets their vines spill over edges, so mounting them at the top of a terrarium can produce a stunning cascade effect.