Lovely, well grown plants. I notice that you are growing them in, what seems to be polystrene trays. I have seen this with some other growers in europe. Over here in the UK we only grow in pots (don't take change well). Last year I started using polystrene trays for my seedlings (see below) and I am finding that they do grow better especially the root system. Some seedlings of M.bella ML 28 had to be potted into 7.5cm pots after only a year in the poly-tray because to roots were so large.
How do you get on growing adult / larger plants. Do there roots break throught the polystrene and do you have to pot into larger plastic pots eventualy. I would be grateful of any comments you may have has I am considering growing my whole collection in polystrene trays.