By rights blueberries shouldn’t thrive in my garden, and they didn’t use to. Blueberries need acid soil and ours, on limestone rock, is neutral at best. I have two blueberry bushes and they were very feeble, hardly managing to produce any fruit at all. So I dug them up, removed all the soil and replanted the bushes in ericaceous soil. They have responded magnificently. Blueberries are unusual in that they produce their fruit gradually, with ripe berries on the same branch as immature ones. This makes picking the fruit rather fiddly, as you have to be careful not to damage the unripe berries, but the advantage is that the crop seems to go on forever. I’ve been picking blueberries for six weeks now and unfortunately we’re near to the end of the crop now. The picture shows what I’ve picked today – I’ve added a few of the very first Japanese wineberries of the season, which give a welcome sweetness to the tart blue fruit.