Posted: 14/09/2015 at 13:45
Thanks all. I've just found a website that says its "impossible" to germinate these and they only grow through splitting a plant yearly.... which makes you wonder who the devil is out there writing articles as though they are knowledgeable?! Now you can see why I much prefer to ask you guys! Even Verdun is more reliable
As for puncturing the liner: I've a fibreglass pre-formed solid liner so I'm not too worried about that being damaged. There's also little soil in there that's not in fixed pots for anything to grab hold of (and the fish seem intent on eating all the fresh vegetation so no signs of rhizomes yet).
Nutcutlet: interesting to hear they will take hold anywhere as they'd look lovely in the wild area around the manshed.