These are going to take a long time to grow.

I planted some seeds last year, and 2 of them just started to sprout now.

One of them died, due to out of town for a week.

The last one I have is left in the green house. Hopefully it doesn't die off. Winters coming.

They are easy to start but I find them hard to grow after the 2nd year. Very picky plants.

I've been looking through google but most websites are just a copy of the wikipedia page and not very detailed. it says they like to have cold water streaming over their roots, so do they need to be planted in like a pond or fountain?

Some people rig up some sort of pump. That's too much bother for me. GREAT plants but their roots are picky.