1, in general, the toon leaves to May should not be eaten again, because the peak season of toon buds picking in March-April, this time the taste of the toon buds will be more tender and more delicious, and to the middle of April, the toon buds have grown old, in addition to the taste is worse, the content of nitrate and nitrite also exceeds the international food standards, eat more will be unfavorable to the body.

2, but according to the temperature, climate and so on, the time of the toon germination will have some difference, generally in the Qingming Festival before the germination, and wait until before and after the rain, that is, in mid-April when you can pick and eat, this time is the peak season of the toon on the market, the newly planted toon can be picked up up to two times per year, three years after the year can be picked 2-3 times, so we must grasp the time.