First grow? 1977. Since at that time it was pretty standard to get a "3 finger bag" for around $30 it always contained as much as 20% seeds. Sensimilla was indeed an anomally and some of the first I tried was actually some I had grown. At the time, my parents owned a fairly large farm were we raised corn, wheat, soybeans, tobacco and beef cattle so I had my pick for both grow locations. I had read a article in High Times magazine on growing sensimilla and how to identify males, females etc. but little information was given on fertilization, photo-periods, ripeness and the like so I was left up to my own intuition and experimentation. I germimated all 10 plants in the native soil with composted cow manure as my only soil amendmant and gave them nothing but water during the drier periods of the summer. I somehow ended up with 6 females that survived and they yielded a total of 1lb 3oz of seedless weed.
My friends were more than a little bit suspicious of any cannabis that was locally grown (seedless no less) and was intially looked down upon as simply "homegrown" and suggested that I could only get about $10-$15/oz. for it. At a party one night at a local lake, I rolled up several thick joints (wtf is a "blunt"?) and started passing them around. It wasn't long until the entire group was stoned out of their gourds and pleading with me to sell them all that I had. They decided that I could even command $40-$50/oz. for this stuff which was unheard of at that time unless it was Panama Red, Jamaican or Maui Wowee etc. Ahhh the good old days lol.