Nice, that's a lot of plants! I grew some years ago and was able to harvest about a gram of smokeable opium, I had probably 15-20 plants. The pod and stem tea was really where it was at though, I actually preferred it to shooting dope.
I always stress to anybody who tries it that it's not like weed, and a single plant won't produce a large amount. You need some real space, open, full sun, and out of sight, if you want to make any real quantity, past a "hobby" amount like I did. It would be a lot of work to really make real quantity. There's also a direct correlation with pod size and quality versus the amount of space the plant has to grow. You COULD grow a half a dozen plants in a square foot, but all of the ones I had towards the edges were substantially larger and better quality than the smaller ones that were more clustered in the middle. I found that 1 plant per 1 square foot (or about 9 plants per SQ meter) was about right for best yield. I only did it two years though, so I'm definitely not an expert.
The plants are incredibly easy to grow though, when mine were growing I also had some corn and other vegetables that were killed off in soft frost, but the poppies didn't seem to care at all, bright green covered in ice crystals like it was nothing.
I always thought it would be a fun project to buy a few thousand pounds of bulk poppy seeds and drive around the country, Johnny Appleseed style. I bet that with a little work you could probably (re?)introduce them into the native habitat here in the southern US. A single pod can have hundreds of seeds. Birds like to eat them (seeds, in dried, downed pods), so they should multiply quickly.
The first time I ever tried poppy pod was in Italy a long time ago, from pods I had found in a random field on vacation. I seriously considered staying, free wild opiates? Yes please. They weren't everywhere, but they were there. This was before the days of the internet, so I imagine that it's probably not as easy to find them anymore.