Why British gardens are so hard on furniture

Few countries ask as much of garden furniture as we do. A single year might bring weeks of drizzle, a sudden burst of thirty degrees, a soaking autumn and a frost that lingers in the shade until March. The real damage rarely comes from any one of these conditions on its own. It comes from the constant cycling between wet and dry. Timber swells and shrinks, water works its way into joints and then freezes, and metal that was warm and dry on Saturday is sitting in a puddle by Tuesday.

The good news is that none of this requires a huge budget. It does mean the material matters rather more than the styling, and that half an hour of thought before you buy saves a great deal of sanding, scrubbing and replacing later on.

Teak and other hardwoods

When gardeners talk about furniture that lasts decades outdoors, they usually mean teak. The timber is dense, naturally oily and rich in silica, which together make it unusually resistant to rot and insect attack. Look for grade A heartwood rather than pale, sappy timber, and check that the fixings are brass or stainless steel — a rusty screw will stain the wood long before the wood itself gives up.

Left to its own devices, teak weathers to a soft silver-grey that sits beautifully among most planting schemes. If you prefer the warm honey tone, clean it each spring and apply a dedicated teak oil, but resist the urge to overdo it. A thick build-up of oil traps dirt and turns tacky in summer heat. Other hardwoods such as iroko, eucalyptus and acacia can serve you well too, provided they are properly seasoned and finished. Softwoods are best avoided outdoors unless they have been pressure-treated and you are genuinely prepared to repaint them every couple of years.

Synthetic rattan: the practical all-rounder

Natural cane belongs indoors. The rattan you see in garden centres is almost always a synthetic weave, usually high-density polyethylene, wrapped around a frame. That is no bad thing: the better versions are UV-stabilised, so they will not fade, crack or go brittle after a few summers.

The frame is what really matters, and it is easy to overlook. Aluminium frames are light, will not rust and are simple to move around the patio. Steel frames are heavier and more stable in wind, but they must be properly powder-coated or galvanised, because a single chip in the coating is where rust begins. Run your hand over a woven set before buying and check that the strands are tight and evenly tensioned — loose weaving lets water sit between the frame and the outer skin. Cleaning is refreshingly simple: a soft brush, warm soapy water and a rinse.

Powder-coated metal: light, modern and rust-resistant when done well

Powder coating is a dry finishing process that bakes a hard, even layer of paint onto metal, and it is far more durable than ordinary wet paint. The specification to look for is a polyester powder coat of around 60 to 80 microns over a properly prepared surface.

• Aluminium — naturally rust-free, lightweight and ideal for balconies and small courtyards. It can be dented, but it will not corrode.
• Steel — stronger and heavier, so it stays put in a gust. It must be galvanised and powder-coated, and any chips should be touched in promptly with enamel paint.
• Cast aluminium — heavier than tubular designs and often cast in traditional patterns, giving the look of iron without the maintenance.

Weight is worth thinking about. Very light sets are easy to move but tend to end up in the herbaceous border after a windy night, so choose something with a bit of heft or plan to store it.

Cushions, covers and winter care

Even the finest frame is let down by poor cushions. Look for quick-drying foam cores and covers in solution-dyed acrylic or olefin, both of which resist mould and hold their colour. Standard foam soaks up water like a sponge and will be unpleasant by August.

Over winter, the golden rules are simple:

• Store cushions indoors or in a genuinely dry, ventilated box — never in a sealed plastic bag.
• Use breathable furniture covers rather than a tarpaulin. Plastic sheeting traps condensation, which does more harm than rain.
• Raise furniture off paving so legs are not standing in standing water, and move it away from dripping gutters and tree sap.
• Clean and dry everything thoroughly before covering it. Dirt and damp together encourage mould.

Choosing well for your own space

Think about how you actually use the garden. A small courtyard often suits a bistro set that folds away, while a lawn calls for something you can rearrange without straining your back. If your garden is exposed, prioritise weight and stability; if it is shady and damp, prioritise materials that shrug off moisture.

Whichever route you take, buy the best you can afford once rather than replacing something cheap every three years. Well-made teak, quality synthetic rattan and properly coated aluminium will all give you a decade or more of use with nothing more than a spring clean and a little care in October.