Thanks for sharing the lovely website. I've dabbled in feng shui, rocks since I was in early adulthood. But getting into using flowers intentionally has been more recent. (a couple years.)
For protection what stands out the most for me is PAPRIKA!!
It is said from what I've found online is to be good for "un-crossing, and breaking hexes" as well as intensifying other spell work.
I'll share my story of when I used paprika.
I could definitely tell I was under some kind of spiritual attack from end of May to Early June.
I put it in all the corners of my bedroom. I got in the shower and when I got out of the shower...I friend exposed themself as an enemy. It was someone I let myself get close with and told them a lot of personal things. She told me a rumor about a guy I had sex with a few times. She was telling me that his ex was making accusations about him. So she was expecting me to believe her and feel like crap. No, I reached out to the guy and told him what his ex was saying about him. He is still friends with his ex. So he contacted his ex. Turns out it was my friend making up rumors. Oh the the things I've been doing, Paprika stands out the most because that's the one I that exposed this person with everything else I was doing(rocks candles floor washing). This friend also does witch craft, has psychic abilities, and has been practicing much longer than me.
I've brought it on dates to protect my self from predatory behavior. Or a guy I have chemistry with but get signs that it is not the right direction.
The most recent time I used it was to just intensify things I have going on in my alter area mainly. Well that day just happened to be a loins gate portal. I had a lot of kullundi energy basically go through every chakra in my body. I even experienced a new level of communication w/ TF.
Years ago I had citronella in my diffuser. Not a lot of info on it, but one site said it keeps away people pests too. And it seems to be true. I had a friend turn and become overly clingy. Borderline stalking behavior. It drove me up a wall how much she wanted to keep in contact with me. I went a year with out talking to her...but we are friends again and we just have healthier boundaries now.
Hmm I use other herbs flowers...but those two take the cake. I have a spiritual connection with Tulips and receive a lot of divine message with them. My parents really never had any. I haven't used them. But I know the yellow ones are supposed to be used for protection.
I would love to hear what anyone else has to share.