Hi Uli, For me, the reason for growing it is for the enticing fragrance that can't be found in other amaryllids. Sure, some come close but not quite like A. belladonna. I have good success growing it in Berkeley, in US one gallon pots where I planted one mature bulb in each pot (they will eventually split), and they come back and bloom every year. I think the key is that they need to have lots of good water and sunshine (full sun) during leaf growth and not allowed to go completely dry in the summer. Also, they produce flowers 2 years in advance (if I remember correctly) inside the bulbs so any disturbance (such as too cold) and they may abort those flowers and you don't get them for the next 2-3 years. Nhu On Wed, Aug 6, 2014 at 11:51 AM, Johannes-Ulrich Urban < johannes-ulrich-urban@t-online.de> wrote: > but there are so many plants that can be grown under one's given > condition, why bother with one that will not perform? With me A. > belladonna has never flowererd in a pot and it is said that the bulbs do > not like to be disturbed, they need one or two years to settle in after > transplanting and will not flower until they are established, in a > suitable climate that is. >