Posted: 17/07/2017 at 11:08
Hi and welcome to the forum
I think you've been doing just fine ... your gardening instincts seem good ... a few yellowing leaves are to be expected after transplanting ... to be honest I'd have expected a lot more ... and don't forget, even evergreen trees lose their leaves ... it's just they do it a few at a time throughout the year instead of all at once like deciduous ones.
I'd just carry on as you are ... perhaps a light sprinkling of Fish Blood and Bone (now will be ok but not too late into autumn) - it's an organic slow release fertiliser and won't try to force the plants into putting on lots of top growth before they've got their roots properly established and ready to support a lot of leaves. Getting the roots established may well take up to 12 months, so don't panic if you can't see growth happening ... it's all going on underground.