Raising Monarchs, 2020
Over the last 7–8 years my wife and I have spent the summer months raising monarch butterflies. We learned to do this because the number of monarchs in the United States has dropped precipitously over the last 25 years primarily because of habitat destruction and global heating. The number of monarchs making it to their main winter gathering site in Michoacan, Mexico has gone way down over that time. The years 2012–2014 saw an overwintering monarch population about 90% below what it was 20 years earlier. This was when we and many other people around the country began growing milkweed.