@heinragas Good morning Hein.
Holland/Netherlands is the place for bulbs. I wasn't into that when I roamed around there. Have you had yours go to seed? The flower was gone, we usually break the non-leaf stalk off, but as it bulged, I knew, opened it up ,seeds like rose petals crammed into the pod.
That's what I grew! From seed!
I grow them always from bulbs.