Question for the witches here

Technically, its the essence of the actual flora you're employing. That said, though, I'm a believe that many of the items used in witchcraft are symbolic and best used to focus intention. There's no such thing as a "magic" wand and crystals are perfectly inert matter.

I think witchcraft is very much a practice if harmonizing with the frequencies of the Universe to effect positive change. If you can do that, you're doing things right. If you do want to look into supplies that might be hard to find in your area, Etsy is a good resource. Also https://oldworldwitchcraft.com offers quality supplies and information on Old World witchcraft, which is very close to a hedge witch.

Charm? Like tinker bell and Peter Pan sorta thing?

It depends on how hard you believe. Material components of a spell are just props, as we all know.