Be careful about advertising plants for health and wellbeing. There are really strict laws on advertising herbal supplements (even just loose leaf tea with nothing added, for example) around advertising in that area (and needing to be registered with the TGA (theraputic goods administration australia), complying with labelling laws etc). I cant see actual plants being too different - its not the product, its the claims being made.
Apart from the laws, places like EBay and Etsy and other online selling platforms dont take kindly to it - Youre allowed to put things like supplements on Ebay, and list ingredients, but they restrict what you can say about them (I know from experience). Dont make health or medical claims of any sort or your listings will be removed if reported (and your competitors are likely to report you to remove the threat), and repeated offences will see your account closed permanently.
Stating any health or medical claims will make you liable as well - you will need public liability insurance AND indemnity insurance, which in that area is VERY expensive for this type of business. If, on top of that you havent adhered to laws in the area, and someone gets sick, youll end up in jail.
I used to import dry leaf herbs for my own real life business... its a really sticky legal area, and you need to get it right the first time. Nearly everyone I know in the area got actual legal advice when they were doing it, those that didnt, didnt last long. My advice would be find something easier, and less likely to get you into trouble, the first few times round. That, or just dont make any medical or health claims at all on your items (including saying its "for health").
If there was a history of anyone dying or overdosing on anything you are selling, there NO WAY I would be selling it. Jail or being sued and years of pain arent worth a few bucks on Ebay.
