There is a funny thing about the growing and care of dahlias. You may ask five different people and get five different answers. The responses aren’t always different on every subject, but there are definitely some variations.
I will tell you what we do here for both the growth and care of Dahlias however, I would strongly suggest that you research other articles, books, social media comments and talk to other dahlia enthusiasts. Then, make the best choice that you feel may work for you based on the accumulated information that you’ve researched. Keep in mind that growing and care habits may differ based on the area where you live.
I think the first thing you need to know is that what works for us may not work for you and vice versa. Is it the soil? Is it where it is planted? Ask yourself these questions and choose the option that works best for you. You may find you will try different things, settle on the choices that work best, and make revisions along the way.