Michihili - Chinese cabbage/lettuce

I've tried growing Chinese cabbage a few times, Wong Bok from Premier Seeds and some hybrid varieties from T&M (boooooo). The first time they went to seed early (sown in spring) and the second time they got hammered by pests (sown after mid-summer). It's best sown early in spring or late summer, they go to seed very easily in warm weather. Slugs love the leaves and if caterpillars get in there they'll eat their way to the heart and leave their green poo all over the rest. If you can keep the pests away they're very nice to eat. I would probably opt for a hybrid variety as they are less likely to bolt early.