1. Local flower market: You can go to the local flower market or flower wholesale market and ask if there are any suppliers or growers of Trollius chinensis. They may be able to provide you with more accurate information and purchase options.
2. Online plant market: Search online plant market or gardening website to find out whether there is a seller who provides Trollius. Online shopping can provide you with a wider range of choices, and you can find mail service.
3. Local flower lovers' community: Join the local flower lovers' exchange group or online community, communicate with other plant lovers, and ask if anyone knows if there is any information about selling Trollius in Hubei.