I have been growing dahlias in my gardens for about 5 years now. Each year I learn more & more about improving my soil to promote healthier plants to naturally keep them disease resistant. Being a systems thinker has helped me to realize that some of my earlier gardening practices were not promoting sustainable gardening. One example was when I learned that using peat moss in my soil was not recommended. I had no idea that it takes 1000's of years to develop peat bogs and that I was actually adding to the depletion of a naturally occurring resource that takes more than my lifetime to create.
Meanwhile, I have been making my own compost and using coconut coir, although coconut coir is imported and that uses valuable resources in order to transport it. As you can see, I'm still working on being a better systems thinker!
Carrie Greenfield