How do you build a raised garden bed with decking?Ĭomposite timbers are lightweight timbers made from wood fiber and UV-protected polypropylene. However, most new pressure-treated lumber no longer contains this chemical. CCA treated lumber contains arsenic, which is toxic to plants. Alternatively, you can purchase topsoil at a local lumber store or a farm supply store.Īlthough pressure-treated lumber offers added protection from rot and insect damage, it also releases harmful chemicals into the soil. Fresh manure, on the other hand, is too fluffy to use in raised garden beds. If you can’t find compost, you can also use aged manure. It will settle over time, but it should be topped off with compost to improve soil fertility. Because of this, the labels on these blocks don’t always list the aggregate content, so it is hard to tell how safe a particular material is. Many blocks also contain fly ash, a byproduct of burning coal, which contains heavy metals and hazardous waste. The material is made of cement and fine aggregates. If you are wondering if Trex is safe for your raised garden beds, you should know about the composition of the material.
Is Trex safe for raised vegetable garden beds? Composite lumber is also durable and non-toxic. This makes it a great, environmentally friendly alternative to traditional building materials. In fact, some composite lumber is made of up to 95% recycled materials.
USING TREX BOARDS FOR RAISED GARDEN CRACK
In addition, the material can buckle and crack when placed near edibles, so it may not be the best option for large beds.Ĭomposite lumber is made from recycled plastic and wood fibers. It’s not as durable as real wood and requires annual evaluation and replacement of boards. The best choice for a vegetable garden box is a wood that naturally resists insects.Īlthough composite wood is a great option for raised beds, it may not be the best choice for vegetable gardens. Pressure-treated or reclaimed wood, for instance, can contain harmful chemicals that may contaminate your vegetables. When building a raised bed or garden box, it’s essential to choose the right type of wood. Is composite wood safe for vegetable gardens? The second question is: How deep should the raised bed be? Composite decking is an excellent option because it doesn’t warp or break, and it is durable and easy to work with. If you are thinking of building a raised bed for your vegetable garden, you will need to know whether Trex or composite wood is suitable.
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