Or "erts" as I know them. Don't know where one can buy Uliginosum, but perhaps some local cuttings/seed (stratification required) would be the solution. I too have a mind to plant up a bed idc with donors from my hedges - Myrtillus I believe - as I'm not a great fan of blueberries. Unfortunately, my wild ones didn't fruit at all well this year for some reason!