sanderianum leaf growth speed....
On another forum we were having a discussion about orchid leaf growth and I questioned whether it was from the base or the tip, especially in my sanderianum since they are natoriusly slow growers.
On 2/18 I put marks with permanent marker on the terminal leaf at three locations: at the junction where the two lower leaves meet and at the junctions where the edge and ridge of the terminal leaf visually met the same two leaves. Hopefully the picture explains this a bit more.
I noticed some movement after only two days. It was slight enough to possibly be paralax or misalignment of my eyes from where I initially put the marks.
It is VERY obvious now and no amount of alignment error can deny that there has been quite a bit of movement and that it is from the base of the leaf as Heather supposed it would be.
The average amount of movement is 5mm (6 at the bottom, 5 at the left edge and 4 at the right edge. All this in 4 days!!! I think this calculates to about 1 inch a month!!! Maybe I am doing something right!!!!?
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