Chemicals pass into the wood and into the potting soil
Of course, many hobbyists and do-it-yourselfers quickly resort to wood-protective glaze, varnish or paint for this purpose. However, this handle needs to be carefully considered, because normal wood protection (such as for the terrace) is not enough in the case of a raised bed. Non-toxic agents should always be used here. The reason is very simple: the chemicals in the spread go into the wood and from there into the potting soil - with the result that the same toxins migrate into the vegetables and eventually into your and your family's stomachs.
- Which is better in the raised bed: fleece or foil?
- Which is better for the raised bed: pond liner or bubble liner?
- Which border is the best for the raised bed?
Should you even paint a raised bed?
Basically, painting the raised bed is not necessary - if you have used hardwood to build it. Instead, the bed should be kept away from the damp earth, while rainwater should be able to dry off quickly. Regular treatment with wood-protecting paints or glazes (€ 59.87 on Amazon *) can help ensure that the raised bed retains its beautiful color for longer - and also lasts longer. Many woods tend to gray over the years, which can be hindered by a color treatment.
Never do without the foil
Many a hobby gardener comes up with the idea of leaving out the protective film on the inside of the bed and simply painting the wood instead. However, this measure is not at all suitable for meaningful protection against moisture and thus the rotting of the bed. If you want to paint, you can edit the outer border.
Which colors are best for painting the raised bed
You have many options here: linseed oil and beeswax glaze are particularly suitable for natural and non-toxic wood protection. You apply both of these to the raised bed annually on a dry and sunny day in spring and let the glaze dry thoroughly. If necessary, repeat the treatment.
If you would like to color your raised bed, it is best to use non-toxic and saliva-proof toy paints, such as those sold for painting self-made children's toys.