What type of wood chips are not good for the garden?

Using wood chips in your garden can have numerous benefits, including helping to suppress weeds, conserving moisture in the soil, and adding organic matter to improve soil structure. However, not all wood chips are created equal, and some types may not be suitable for use in the garden.

One type of wood chip to avoid is treated wood chips. These wood chips have been chemically treated to make them resistant to pests and rot, and they may contain harmful chemicals that could leach into the soil and potentially harm your plants. It’s important to avoid using treated wood chips in your garden to protect both your plants and the environment.

Another type of wood chip to avoid is bark mulch. While bark mulch can be an attractive addition to a garden, it tends to decompose slowly and may not provide the same benefits as other types of wood chips. Bark mulch also has a tendency to blow away easily, making it less effective at suppressing weeds and conserving moisture in the soil.

In general, it’s best to use wood chips that are made from hardwood trees, such as oak or maple. These wood chips tend to decompose more slowly and provide more benefits to the soil. It’s also a good idea to use aged wood chips, which have had a chance to dry out and become more stable. Fresh wood chips, which are often obtained from a tree service or landscaping company, contain a high amount of moisture and can be more difficult to work with.

In conclusion, it’s important to avoid using treated wood chips and bark mulch in your garden. Instead, opt for wood chips made from hardwood trees, such as oak or maple, and use aged wood chips whenever possible. By following these tips, you can ensure that your wood chips are safe and effective at improving the health and appearance of your garden.