Ilex... it WILL take over as a weed if you're not really careful. >_<
At my house, all mint is grown in pots for this reason.
I've thrown a couple jasmine flowers in my tea before, tastes kinda nice. Yet to find any specific healing properties in any of my herbal medicine books, but if you're after the "witchy" properties of it, I've mostly head it associated w/ sleep and dreams (possibly prophetic) and sometimes with drawing luck.