This is probably on your to-do list already.

Beginner gardeners usually start out with herb pots (i.e. basil, oregano, parsley) because they offer longer-lasting rewards for less initial effort and applied skills.

Having this option may give impatient beginners a sweet preview of what they can do (which of course translates to more revenue for you), as suppose to trying to grow difficult plants, get discouraged by failures and never use your service again.