By chance, Mary brought back a plant, a single growing bulb, from Madeira recently. We saw it growing in the Botanic Gardens in Funchal though only a very few were in flower. It looked as though clumps had been divided earlier in the year and there were many single growing spikes and only a few clumps. Those in clumps were in flower while the single bulbs were not, obviously delayed by the disturbance.
Photograph from the Botanic Gardens, Funchal, below.
Paddy