Last year, I carved out a bit of my lawn to create some beds for perenials and annuals. With the exception of some Wave-brand petunias, none of my annuals (mostly petunias) did especially well, despite a sunny location, fertilization and watering. The same annuals did very well in pots and planters (in Miracle Grow potting soil), so it's apparent to me that my problem is my planting bed soil.
I've mulched the beds with hardwood mulch - could that be the problem (chemicals leaking from the mulch?)? Is there any way to ammend the soil without digging up the entire bed?
Your help will be appreciated.
Bob P.