Am 13.11.2012 06:46, schrieb Steve:
On 5/28/2012 3:36 AM, Willi wrote:
This year I.pseudacorus and I.germanica flowered at the same time and I
tried to cross-pollinate some. So I didn't pick off the faded flowers
for the photo. Usually Iris pseudacorus flowers later and the flowering
periods do not overlap.

G Willi


I had 4 big clumps of Iris pseudacorus growing in the corner of my
property. This early summer, when they were in bloom, my neighbor
noticed them and reported them to the Department of Environmental
Conservation. It took nearly 2 months, but eventually the DEC sent
people over. They cut them down and applied some sort of herbicide on
the stubs so they would die. Knowing those plants, I bet they will grow
back.

Steve

They are native here (Austria, Central Europe). I don't know any in wild
nature around here though as they prefer rather swampy grounds like the
sides of ponds for example. According to my experience they expand less
than other irises in rather dry soil.

W