Russian Garlic

When is the best time to dig Russian Garlic? Is it the number of green leaves left on the plant or the number of green leaves compared to brown leaves?
I know this thread has been discussed before..but just want to check if it applies to digging Russian Garlic as well as other garlics? Many thanks in advance.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.