Choosing natural wood for your garden furniture or features is a warm and good-looking option. Most timber is treated with chemicals to keep it from rotting, but some woods have a high level of rot resistance without any treatment at all. The main contributors to wood rot are moisture, insects, fungi, and sunlight exposure. When it comes into direct contact with the ground, such as in a garden bed or trellis, use rot-resistant wood. When wood rubs directly against the ground, moisture can seep in and cause it to swell and break open. This makes it more susceptible to mould and fungus growth. Wood rot is also accelerated by any materials that grow over it, such as vines and plants.
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