I'm in a similar situation. My flock free roamed most of every day, but since we moved, they have been shut in their pen due to lots of new predators and just a lack of good foraging spots because we are still working the land. You and I both can only do what we can do.
I buy whatever I can and wherever I can find them I am currently growing a mix I picked up on sale at TSC - I think I got it for $5 for a lb (normally $10). I started them 2 days ago, and they have already begun to sprout. We will be using rotating paddocks by moving the electric netting I purchased from Premier1. It's a far cry from what they are used to, but it's better than no access to greens.
I buy whatever I can and wherever I can find them I am currently growing a mix I picked up on sale at TSC - I think I got it for $5 for a lb (normally $10). I started them 2 days ago, and they have already begun to sprout. We will be using rotating paddocks by moving the electric netting I purchased from Premier1. It's a far cry from what they are used to, but it's better than no access to greens.