I commend you on your garden. Wow! You are an inspiration. I'm curious as to whether you are digging up your dahlias and glads? I'm also in Missouri Zone 6A and have avoided planting items that require planting and digging up each year as I just do not have the ambition for those types of plants. Once again, thank you for posting and I was able to get some good ideas for a future berm that I'm planting.