Need help regarding difficult area to grow and 'American Meadows'
I have an area along the edge of my backyard that I have been struggling with for 5 years. When we first moved in it was all weeds. We managed to eliminate most of them and I put in $200 worth of perennials (the area is about 80 feet long and 6-7 feet deep, beyond that is wooded). Anyway most of those perennials are gone. This year I tried filling in with a few annuals for color but without much success. The soil is heavy clay which is soaked in the spring but bone dry and sometimes cracked in the summer dry-spells.
Anyway, I have been comtemplating trying to overseed to area with wildflowers this fall. My question is, are there a few really good choices for an area like this that I should stick with? It's only part sun because of the trees. I comtemplated getting a mix from American Meadows in bulk since I will need a lot of seed but I think many of the flowers are not suited to the heavy clay soil. I would really like to get 5 or 6 that would be a sure thing for the conditions but I don't know what those might be. Even the yarrow and chameleon plant don't spread!
Thanks for any help!!!
Here is a link that might be useful: american meadows shade mix