US grapevine nurseries have worked hard to meet the growing demand for premium varietal grapevines. Although the market now shows signs of contraction, until very recently it has not been uncommon for nurseries to be sold-out up to two years in advance of delivery date. Grapevine nurseries have prospered as the wine industry has grown, many establishing new vineyard rootstock and scion mother blocks, and state-of-the art propagation facilities with the profits generated from the tight vine marke...