How about soil amendments?
For the past 2 years I have planted Dahlias and had remarkable success, thank goodness! But I also changed locations of planting, but now I want to get serious and plan an area for Dahlias that will go from year to year.I don't need to dig them up every year as I'm in No. Calif. zone 9/a/b. Is it important to amend the soil each year & what do you do and with what!?! Our weather here right now is in the middle 60's and a great time for me to play in the dirt! Any suggestions most welcomed! Pat