Finally, for plants you can also use the roll of sowing paper. It will be enough to make four vertical cuts of the same length. To be as precise as possible you can take a roll of adhesive tape that you will use on a surface as a base, place a marker on top and bring the paper roll close to it. In this way, with the marker fixed by turning the cardboard you will have a precise mark on the entire circumference, useful for delimiting the depth of the cuts.

Cardboard rolls for sowing.
Once you have made the 4 cuts, fold the four flaps that have been created on themselves, as if to close the roll. Then fill with soil and seeds and water, the seeds will germinate very quickly and, thanks to the composition of the cardboard roll, you can plant the roll itself directly, thus avoiding transplanting the newly born seedlings.
😊 only educated members will say thanks 😊 The rest in the first comment