chinese cabbage flowering is this normal?

Hi @lowrider69 aww very sad but no they have now gone to seed so I would pull them up and start again.. Sad but looks like they bolted..
Most plants bolt due to hot weather. When the ground temperature goes above a certain temperature, this flips a switch in the plant to produce flowers and seeds very rapidly and to abandon leaf growth almost completely. Bolting is a survival mechanism in a plant. If the weather get to be above where the plant will survive, it will try to produce the next generation seeds as quickly as poss.. Bolting can be prevented by either planting early in the spring so that bolt-prone plants grow during late spring, or late in the summer so they grow during early fall. You can also add mulch and ground cover to the area, as well as watering regularly in order to keep the soil temperature down. Sadly leafy veg and a lot of herbs are very prone to it once the hot weather arrives.. You can use the leaves rather than just toss it all away, but you need to start again I am afraid..