Insect screens are also effective that no holes by bugs have not been found and no chemical pesticide has not been used.
My Chinese cabbages (白菜/Hakusai） are also healthy and have become big. They can be harvested in the mid of December, if no problem. A Chinese cabbage is one of my favorite vegetables and my family members are looking forward to harvesting big ones and enjoying dishes of them like hot-pot (Nabe) dishes.
I can't forget my kid's contribution to the healthy growth of my cabbages.
They have worked harder and helped me in my garden. They also love hot-pot dishes of Chinese cabbages and sliced pork. Letting them know how delicious vegetables is a good way to inspire them to work in my garden, I believe.
-- from iPod touch