my mate grows in the mangroves ,plenty of water but if it is in the swamp? not sure, but do as he does get grow bags and put them in the plants of bushes growing around there,keep them out of the muddy shit. ,but my idea of a swamp myy be different ???is it all right to plant in swamp land? theres no surface water at all, but im worried about root rot what do you think?
I did that with cucumbers once.cant you get compost in bags at the garden center in 80 liter bags or the u.s equivalent you can cut holes in these and plant straight in it