Dear Ian, Yes, I understand you. Most botanical gardens are in the seed exchanage. But they do buy from growers and happily accept donations. In germany for example I have seem in theri IS that the plants are bought from a nursery. As they also have IPEN numbers they have to keep track of what they buy/exchanage. Here all botanic gardens are very happy to receive donations in plants or in money. They know that the bulbs are infected, but they don't care because voles do a big selection from year to year (they kill 10-30% of tulips in the garden year by year). Anyway I was in holland and the highest quality bulbs can contain around 1% virus infection, the standard quality what we can buy here can contain up to 5 or 6 % virus regarding variety! We cannot stop viruses, and the gardens need a high input of bulbs becouse people are willing to see only flowering plants there. It is also hard for me to collect seeds, tulips are not willing to set seeds here. And it can take up to 6-8 years to raise from seed to flower a tulip. In the gardens volse eat them before they could flower. I'm offering my bulbs free for the gardens, and I'm telling them that they are infected, but they said it does not matter. Bye, Jan Z5a, Hungary