Speaking of LD inducing spices, I just had an LD last night and wanted to increase my lucidity in it. Some guy pulled out a bottle of what he said was "rosemary and thyme" and told me it would help. I ate it, and I became quite lucid (and also kinda high at the same time).

I don't think I'll actually try this in reality though.. I think my subconscious just chose rosemary and thyme because it's part of the song "Scarborough Fair" by Simon and Garfunkel (I'm not sure if they're the original artists for it). But if anyone else wants to try, go ahead!