Using old baths

[Dave]

I get given old fibreglass baths, which I never turn down.
and I use them for growing what could be invasive plants.
it does not matter if they have a hole in the bottom, as I drill lots of holes in the bottom to aid drainage.
also you can control watering, feeding, and pest control

so far I have filled them with mostly mint varieties.
chocolate mint
pineapple mint ( variegated)
spearmint
peppermint
Russian mint

Thanks to Garden Guru