Does anyone have suggestions of European nurseries collecting & selling heirloom perennial vegetables & edible landscaping plants? E.g. similar to Oikos Tree Crops in USA. If the group policy allows mentioning commercial sources here (without any intention to advertise any specific one), I could list some that I know and have mail-ordered from. Even though this group is dedicated to (amateur) breeding, the availability of breeding material is a very important matter, in my opinion. What do you think?