Vineyards have rows and rows of grape vines. These are supported by wooden structures to hold them off the ground. There will be a building with equipment used to process the grapes.
There is no standard collective noun form the noun 'vineyards', in which case a noun suitable for the situation is used, for example an itinerary of vineyards, a cooperative of vineyards, a collection of vineyards, etc.
If it means one weaver's vineyards then it would be Weaver's Vineyards, but if it was multiple weavers then it would be Weavers' Vineyards. Or if it was just Weavers as a name, it would be Weavers Vineyards.
Almaden Vineyards was created in 1852.
Windsor Vineyards was created in 1959.
Cristom Vineyards was created in 1992.
J Vineyards was created in 1986.
Markham Vineyards was created in 1978.
Wente Vineyards was created in 1883.
Kistler Vineyards was created in 1978.
Schramsberg Vineyards was created in 1965.
Alban Vineyards was created in 1889.
Trefethen Vineyards was created in 1968.