What vegetables are planted in the open air all year round?

In spring (lunar calendar 1-3), the seasonal vegetables are pepper, green pepper, colored pepper, onion, cauliflower, sweet bean, pea, celery, lettuce, shepherd's purse, rape, spinach, Toona sinensis, bamboo shoots, Malantou, gourd and leek. In summer (from April to June in the lunar calendar), peppers, loofah, bitter gourd, wax gourd, kidney beans, asparagus, water bamboo, onions, cucumbers and bergamot. ...