With a protective tray, you can place your pallet collars on all surfaces without damaging the material, for example, if you are cultivating on a wooden deck, balcony or terrace.
If planting in pallet collars on the ground, this black underlay protects against weeds and keeps the soil in place, so that it doesn’t leak.
With this tray, you do not have to use a ground cloth to keep weeds away. The tray can also be used for other reasons, like when replanting.