You can bring potted flowers on the subway and high-speed rail. Potted flowers are not contraband or tube products, depending on the volume and weight. As long as the volume and weight do not exceed the regulations, they can be carried.

The provisions of the Railway Corporation on the prohibition of carrying articles are as follows:

Goods whose transportation is prohibited or restricted by the state;

Dangerous goods, ammunition and chemicals whose nature cannot be determined by the laws, regulations and rules;

Animals and articles that hinder public health (including odor);

Articles that may damage or pollute the vehicle;

Items whose specifications or weight exceed the specified value.