Posted: 28/02/2016 at 15:15
You are right about the self-life and the price. However, you don't need that much and I'm very attached to my climbing hortensias. One is older than me and I'm over 50.
I'm sure either Van Iersel or Citytree could offer you advice on availability in the UK. The Dutch have great language skills.
www.van-iersel.eu or www.citytree.nl
Let me know if you need assistance ...