How should I manage soil quality for my annual flowers?
I’ve been focusing on composting in my garden, and I feel like my soil has improved, but I’m curious about how to ensure it's the best quality for my annual flowers. I'm in a somewhat urban area, and the soil varies quite a bit. I’ve tried mixing in my homemade compost, but I'm not sure if there's more I should be doing. How often should I test my soil, and what specific amendments might be beneficial to promote healthy annual flower growth? Any advice based on your own experiences would be greatly appreciated!