Rotgipfler is a crossing of Traminer and Roter Veltliner, and is related to Grüner Veltliner (hence its synonym Weißgipfler). Likewise with Zierfandler, Rotgipfler is a speciality found virtually only in the Thermenregion.
Vineyard area: Found almost solely in the Thermenregion. Its cultivation is decreasing.
Important ampelographic features:
Leaf: medium-sized; circular; five to seven lobes; veins are red; deeply lobed. A key characteristic: reddish-bronze vine shoots (thus the name Rotgipfler)
Grape cluster: medium to large; very compact juicy berries; conical; greenish yellow colour.
Ripening time: mid to late season
Significance, conditions: Only in the Thermenregion can appropriate growing conditions from climate and soil be found. Warm south-facing vineyard sites with good calcareous-based soils are necessary, otherwise shoot growth diminishes significantly. Good vigorous sites bring consistently high yields.