Give it a try. I've got two tubs out on the deck now. Java fern in a rubber made tote tub, It's be there 3 wks. just some pea gravel in the bottom to anchor the roots. Water changes every few days. With rain or De /Clor tap water. Not isuses good growth.
#2 is a small plastic $1 Store storage box. I used MTS & some TopSpoil right from the bag capped with sand. I've got e.Belem in there. Now they are in 2" of water once they settle in(1 wk. now) I'l drop the water level.
The tubs get afternoon Sun from 2p-7P.