The usual window for British Asparagus is typically from St. Georges' Day (29th april) to the summer solstice (21st June).
This year we have been quite lucky and our grower, Tony Brew of Abbey Farm, Coggeshall, Essex, reckons we might get an extra week (next week).
So we are in the last two weeks now (until the end of June) - so customers should enjoy it while it lasts!