FAQ: Why aren't my perennials coming back?

"I plant hardy perennials in spring, they do great all summer and fall, but then they’re dead the next spring. Is it bugs, a fungus or just the cold weather?"

It’s cold, heavy, wet soil rotting out the roots, and it means your soil is too poorly drained. Before you replant, dig in some soil amendments like Soil Conditioner or Landscape Planting Mix to create a better draining site. Your plants will most likely grow happily for you if they get better drainage.