Is anyone growing this? Not sure which Equisetum it is, but definitely one of them. This is my third time at attempting to grow it as a pond plant. None have done well and the 1st two attempts didn't survive winter. Reading about it sure sounds like it ought to be an easy plant to grow, but the new one this year just sits there. Not much new growth to speak of and some canes have died and new canes aren't showing up to replace them.
The container sits in water at a depth of 2-3", but the crown is not covered. At the nursery I bought it they had it growing in a pond with the crown covered about 4", but those for sale were just in containers. They looked reasonably healthy, but not especially outstanding. Mine is in full sun.
Anyone here able to give me some tips? Is it cold hardy at all? On those I tried before I left the 1st one outside during the winter, but the 2nd I brought inside. Both simply were no shows come springtime.