>>820915This should be mild enough to plant them out in a permanent spot in the garden (8a here and almost every garden in the area has some), which is the optimum thing for them - let me show again the comparison between individuals of three sets of cuttings that were raised the same way and were in very spacious pots, only difference being planted out in April, May and June respectively (pics were taken a few weeks ago, meanwhile all of them have progressed quite a bit more), seems they really prefer being not rootbound
There isn't too much winter rain here though (about 30mm each month January to April which are the driest months), and they still don't like to be planted into heavy clay soil, so mix in some sand and/or give it a raised position for improved drainage
