It's the Red Star Market on Shaoshan South Road. No stop? Then go to the South Railway Station and walk in from the fork in the road. It takes about 10 minutes. If you really don't know the way, it's easy to ask others.

Tickets for Botanical Garden 10 yuan, tools available for renting stoves in barbecue area. I can't remember exactly how much it costs, but it won't be very expensive. But things must be bought outside, and the things inside are particularly expensive.