You can actually get a weed-store like experience today in California for shrooms in certain places. I've actually been and have, in my possession, shrooms from them.
Still holds. Making a plant/seed/spore against the law is a good example of (retarded) politicians having too much power. (possibly getting voted in to offices by an equally retarded public)
You might want to check closely. As in, the poppies might not be illegal, but if there are any signs that you are, or intend to, harvest opium from them, then those sign become evidence of a felony. For example, having a copy of the book "opium for the masses" (Jim Hogshire)
or, what you believe to be legal (because you can buy the seeds at the grocery store) may not be legal, depending.
My body, my choice. Don't stop anyone from making choices for themselves, as long as it doesn't negatively affect others. If I get high and go on a rampage, there are laws to deal with the results. If I get high and don't bother anyone, leave me alone.
This is a good point as well: Sometimes, it isn't even the plant one is worried about, but pests that might come from other regions as well. Sometimes there are good reason to ban things.
I'm not convinced these apply to most drug producing plants.
