Just to show you, @chickenlover4lifee, I took pictures of two rosemaries I planted together in the past with two medicinal sages...
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See how
big they got?
Although I
have heavily pruned them some months ago...!
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My chickens, my ducks, stray cats (and KITTENS)... animals like to hide and play in there.
(That's funny to see cats, chickens, and ducks sleeping together in there...)
I even have some chickens that like to
perch on the rosemaries...!!
Roots are strong, so even if chickens want to dig holes, these plants will still survive with
no problem once they have taken roots...
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(They have actually grown
so big I had to put a garden box
there just so I could still walk around my house;
ah, ah!)