Posted: 01/08/2013 at 12:11
I retuned from hols once to find my two blueberries in pots had gone all crispy after inadequate watering by a neighbour.
I soaked the pots very thoroughly and then gave a liquid feed of sequestered iron and food for ericaceous plants. Both recovered but I had to cut out lots of stems taht were too crsipy to revive. I then dug large holes in my veggie plot, filled them with ericaceous compost and planted them in teh ground so they didn't get the same problem again. We have hard water and alkaline to neutral soil so they're better off in the ground with rain water.
Blueberries are woodland edge plants so those in pots won't like a full sun, south facing position as they can get their roots deep down to cool soil. Move them to somewhere where they don't get midday sun and keep them moist but not drowning.