I give up memorizing and bought labeling sticks for my seedlings.
I checked out the plastic labels, but plastic degrades very quickly in the harsh New Mexico sun and get brittle and break. Wood decomposes gracefully and enriches the soil instead of adding toxins where none are needed.
Not to mention I have 75 labeling sticks instead of a dozen for the same price. I am using a Sharpie fine point for the names. I found these in the childrens’ craft section, they are for building little houses… that would be fun too.
The last advantage is I would like to remember varietal names for seed saving. Labeling sticks will ensure that I remember from which variety I collected seeds.