It's not too difficult, but I'd be glad to show you.

[ding! eventually, the elevator lets them out and they head for the roof. jiuqing enters the greenhouse and crosses over to a set of planters on the far side, crouching down to examine some of them.]

Let's do the peppermint first. For these, we'll just want to pull off the leaves. Be sure to leave some of them, though - we can encourage it to keep growing, so there will be more for later.