M. aureilanata v. alba

M. aureilanata v. alba in flower, My plants of M.aureilanata v.alba are 15 years old:

Andrej,
you have got wonderful plants. My M. aureilanata plants are very young (two years old) and this year they have blossomed for the first time.

Magnificent, this is an easy one and a fast grower.
15 years is old for aureilanata. The oldest that I ever had was 8 years. But maby I gave them the wrong treatment.