posted 7 years ago
Hi Ronan! Welcome to permies.
The only thing that I can foresee that may be an issue is the emerging garlic shoot trying to get through the full, unshredded newspaper. It might bump into it, and start going sideways looking for sunlight and a way to grow up. I just noticed the way you phrased it- "then planting garlic through it". If you plan to cut holes in the sheets of newspaper to plant the cloves through all your newspaper mulch, then that should allow an easy path for the garlic to emerge and grow through.
"Study books and observe nature; if they do not agree, throw away the books." ~ William A. Albrecht