The Cambridge Planter range includes three different sizes so you can pick and choose what will suit your garden space best Ð this 100x50cm planter holds approximately 100L of compost. The stunning metal top brings a touch of elegance to the planters and ensures they will create the perfect little focal point. To keep the planters protected against rot they have been made using pressure treated timber that comes with a 15 year manufacturerÕs guarantee.