"............ Where gardeners are working, it stops them poking an eye on
the canes.
Or, the pots might have straw inside as an earwig trap............."

OR

It could be that they covered that area with netting or fleece and the pot
would stop the canes poking through.
You can also use cut off plastic bottles.


--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk