Hi, I bought 3 Iris Kermesina plants about 3 years ago and so far - plenty
of leaf but no flowers.
They are planted in a 6 inch deep trough and the top of the trough is about
4 inches below the water surface. This is a smallish variety and will grow
to about 12 inches above the water.
The 'pond' is plastic pre-moulded, 3 feet x 2 feet x 18 inches deep. There
is no pump/fountain/filter etc or fish in the pond and most of the other
plants have been doing ok. Any ideas please ?

Pete