Outdoor Terrazzo: Planters That Weather Beautifully

Concrete was born outdoors, and GFRC terrazzo is built to stay there. Where solid cast stone is heavy and prone to cracking through a freeze, glass-fibre reinforced concrete is light, strong and stable — which makes it one of the best materials going for planters and outdoor pieces. Here is how it performs, and how to style it.

Made for the elements

Three things destroy an outdoor pot over time: frost, sun and salt. GFRC handles all three.

• Frost. The glass-fibre reinforcement lets us cast thin walls that flex fractionally instead of cracking, and the dense, sealed body resists the water ingress that splits ordinary concrete when it freezes.
• UV. The pigments and mineral aggregate are stable in sunlight, so a colourway holds rather than fading to a chalky grey over a few summers.
• Salt air. With no steel reinforcement to rust, there is nothing inside to corrode and blow the surface apart — which is exactly why GFRC is specified for coastal and poolside settings.

No steel inside means nothing to rust. That single fact is why glass-fibre terrazzo lasts by the sea where other pots fail.

Getting drainage right

The fastest way to shorten any planter's life — and drown a plant — is standing water. A few rules:

• Use pots with a drainage hole, and keep it clear. If a piece is sealed at the base, drill or specify a hole before planting.
• Raise pots on feet or spacers so water runs away underneath and the base can breathe. This also protects timber decks and stops staining on paving.
• Line the base with a layer of gravel or crocks under the potting mix to keep the drainage hole from clogging.

Styling by setting

• Balcony. Lightweight GFRC lets you use larger planters where weight limits rule out solid stone. Group three heights of the same colourway for a considered, calm look.
• Courtyard. A single oversized terrazzo planter with an architectural plant — an olive, a strelitzia, a sculptural cactus — does more than a scatter of small pots.
• Poolside. Salt and chlorine are no threat, so this is where terrazzo earns its keep. Cooler colourways like Pale Lagoon and Stone Dust sit beautifully against water.

Simple outdoor care

Rinse off dust and salt occasionally, top up the sealer once a year to keep colours vivid, and bring particularly precious pieces under cover through a hard frost if you want to be cautious. Otherwise, leave them to weather — outdoor terrazzo only looks better as it settles into a garden.

All planters are made to order, in any colourway, with no minimum quantity, and dispatched from our Heathwood, Queensland warehouse. Tell us your setting and we will help you choose a size, shape and colour that will still look good many summers from now.