Having researched over the last week or so, the blueberry plants have been planted into pots. I had found a rather twiggy plant at wilkos, this was the blue crop. The advice is to have more than one variety, so I have also found one called darrow and another called blue jay from a local garden centre. I had been toying with putting them into the clay. But research suggested against this. Advice is to put into pots rather than into ground. Blueberries require ericanaecious compost, or however you spell it. The pots have holes in, so I didn’t need to attack them with a screw driver, and now have the compost in. The plants have been plugged in and also watered with rainwater that happened to be held in a large container. The blue crop from wilkos seems to be the smallest, with the other two plants being much larger and robust. Suggesting that they are at least a year or so old, they did come in fairly big 1.5 litre pots.