Metechi had the latest harvest date of all garlic in 2019, was able to wait til August for harvest. In 2020, also a later harvest, which helps protect it from lost yields due to June droughts. Tough in the field and tasty in the kitchen, Metechi is a roaster that's great in mashed potatoes or squash.
I've seen it listed as a Marbled elsewhere, but I feel it's quite similar to other known Purple Stripes...worth noting that it is a possible mis-assignment. The proper delineation of Marbleds from regular Purple Stripes is a running issue in the garlic-growing community.