Right...

I grow strawberries in a greenhouse. I use 14 litre builders buckets
with drainage holes drilled into the bottom.

I have 45 said buckets in a greenhouse with an automatic fertigation system.

Last year I had Elsanta strawberries.

This year I now have 4 varieties, Honoeye, Cambridge gold and Florence
as well as the aforementioned Elsanta as some crop earlier and some crop
later to widen out the harvest season.

Now I also grow new strawberry plants every year from the stolons from
the current plants.


Now I need a robust labelling system that (a) tells me what the breed is
and (b) what its birth year was.



sticky labels will come off easily.

permanent marker pens fade in the sunlight.

Those white sticks get easily knocked out out the soil.

I dont mind marking the buckets directly but bear in mind I need to be
able to reuse the bucket once the strawberry plants has been binned when
reaching age 3.

I could drill holes into the rim of the bucket to indicate 1 or 2 or 3
holes for year but what about the breed of the plant? square hole,
triangular hole, slot hole and round hole perhaps? where would one get
such a puncher?