Some clowns were buying grow-bags and fertiliser, which is certainly not essential.
I don't think so, as many people will be growing their own fruit and veg now as we may have very short supplies later. Not just the virus affecting the availability of pickers, but the floods were damaging to agriculture too.
On another thread I expressed the hope that nurseries, garden centres, would be able to work online and offer local delivery services. Ours, however, is out of stock of vegetable strips when I looked online
We usually get the bird seed at the garden centre too! Is that essential?
Unfortunately, I think that many carefully nurtured flowering plants, shrubs and trees will be lost.