A raised bed does not always have to consist of a wooden, rectangular box. Instead, there are numerous great DIY ideas on how you can breathe new life into old materials or objects - for example by converting your old bathtub into a raised bed. The necessary water drainage is already available through the drain, and so the good piece can be planted directly in the garden.
Wooden tubs in particular make very nice raised beds
Don't throw away old tubs, repurpose them
Have you just remodeled your bathroom and now you have an old bathtub? You do not have to dispose of these, but you can convert them into raised beds in just a few simple steps. Free-standing bathtubs with feet can be set up easily, for all others you can build a simple framework and set them up so that they do not tip over. Incidentally, not only old bathtubs are suitable for the raised bed, but also zinc tubs or the baby bath made of plastic, for which your child has long since outgrown. It is only important that the tubs have a drain so that excess water can drain away.
Beautify bath or zinc tub
The tubs can be beautified with little effort so that they are not visible - but instead act as a kind of foil replacement in the raised bed. You can build a wooden border around the tubs, wall the tub in (for example, with a wall of brick or natural stone), surround it with a fence of thick wooden planks or hazelnut rods, or a pretty wickerwork.
Fill the tub properly
However, it is much more important to fill the tub correctly. You should insert a fleece as the bottom layer so that the plant substrate does not clog the drain and it can no longer fulfill its task. On top of that comes a few centimeters of coarse gravel as drainage material, which in turn is covered with a layer of fleece. Of course you should use water-permeable fleece, otherwise there will be waterlogging. Only then do you fill in the plant substrate, choosing this depending on the planting. In a bathtub - especially a zinc bathtub - colorful flowers, bushy perennials or herbs look very pretty.
tips
If you don't want to line your wooden raised bed with foil, you can instead place a suitable plastic tub (of course with a water drain to prevent waterlogging) in it. You can easily build suitable frames yourself for existing or purchased tubs, but you can also use ready-made kits from specialist retailers.