After living in a number of different climates in this country, I have learned firsthand why it’s impossible to grow the same plants in every region.
It’s easy for many to consider the change in sun intensity as you get closer to the equator, but there are other factors as well that determine what sort of plants are best for each environment.
Elevation, proximity to large bodies of water, and weather patterns all play a huge role in plant ecology. The agricultural zone maps do a great job of illustrating the vast disparity in one zone of the country versus another that is merely a few hundred miles further north. I know some friends who left a high elevation location in a desert state to a lower elevation that was in the same county. The heat was so much higher, they were taken off guard by the change. Previously that person was used to the cool mountain air, and it was completely absent closer to sea level. Another huge factor for plant growth is humidity. Some plants thrive in high humidity while others need lots of dry air to grow to their fullest capacities. Marijuana might grow well in a warm environment with lots of sun, but the heat is going to spell doom on the crops especially if it is coupled with high humidity. Of course humidity can lead to early bud rot, but it can also create havoc when you’re trying to dry-cure the flower buds before packaging them for retail sale. A naturally drier environment will lead to better cured cannabis most of the time.