Hello Hakone, Thank you for the link, according to myself record, this species from 2600~3300meters. Seldom saw it below 3000meters. Never found it below 2400meters. Lowland form plants&flowers are different with highland form's. This picture showed lowland form, the last one is highland form's.
And, most of farreri got pygmy plant and long spike, as pictures showed.
Let's awaiting what flower will appear in your garden, very interesting.