Tempranillo with temperatures dropping by as much as 16 °C (30 °F) from the daytime high. The Tempranillo grape is one of the few grapes that can adapt and thrive in continental Mediterranean climates like this. Pests and diseases are a serious problem for this grape variety, since it has little resistance to either. The grape forms compact, cylindrical bunches of spherical, deep blue-black fruit with a colourless pulp. The leaves are large with five overlapping lobes. The Tempranillo root absorbs potassium easily, which facilitates pH levels of 3.6 in the pulp and 4.3 in the skin when it reaches maturity.
Tempranillo that Californian Tempranillo wine production began to flourish, following the establishment of suitably mountainous sites. Production in this area has more than doubled since 1993. During the 1990s, Tempranillo started experiencing a renaissance in wine production worldwide. This surge began partly as a result of the efforts of a 'new wave' of Spanish growers who showed that it was possible to produce wines of great character and quality in areas outside of the Rioja region. One result of this has been that Tempranillo varietal wines have become more common, especially in the better-suited, cooler Spanish regions like Ribera del Duero,