I should add a little about my I.graminea in response to various questions.
Firstly, a correction. I received a large clump and divided into three.
They were planted in quite different locations and grew to different heights.
1. Open sunny spot, dryish - 1 foot 3 inches average height of leaves
2. Light shade under a spruce - 2ft 3 inches
3. Shade most of the day and cool - 1ft
All three clumps produced quite a few flowers in the first summer soon after
transplanting. I did not record numbers. They all seemed well formed but,
as expected, low in the leaves. As I am most reluctant to cut flower
it means that none was cut for the house and certainly none for a show!
Next year, I will force myself to allow flower to be cut for the house
(naturally on scientific grounds) and examine them more closely.
Ian E. Efford
Ottawa zone 3