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I love that! Beautiful.Hello and welcome to BYC!Glad you joined.
I too planted my chickens pen with trees and shrubs. But I'm zone 5 so my plantings would be very different from yours.
My goals were only for shelter and beauty. I don't want the chickens destroying them. I used weeping conifers, knock out roses, perennial grasses, hydrangeas, dappled willow, sedum, ninebark, and this was in the area I penned in.
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Don't know what it is but the chickens spend a lot of time under and in it.