Lime and loess

From a geological point of view, Herrnbaumgarten is located at the north-westerly border of the Vienna basin. For millions of years, the lower parts – today in a depth of up to 5,000 m – were covered by Paratethys, a shallow tropical sea. The mighty tertiary sediments of clay, sand, schlier and lime stem from this era.

Over 5 million years ago, the Vienna basin was completely silted up with sedimentation. In the Ice Ages, large areas of the Weinviertel were covered by fine grained, medium-weight and lime-rich sediments wind blown from the flood plains bare of vegetation (loess).

This loess layer is up to 15 m thick. On the slopes, however, the loess was partly washed away. That is where older sediments influence the vines.

This situation allows us to plant our vines on the following geological conditions:

Tertiary sediments of lime and clay:
Very rich in lime, heavy and meagre (Altenbergen, Krainholz). Fine for Zweigelt and Pinot varieties.

Schlier:
Meagre and low in lime (Hannbuch). Fine for Cabernet Sauvignon.

Mighty loess:
Rather light, medium lime concentration, warm (Johannesbergen with Hoher Weg as sub-vineyards). Ideal for Grüner Veltliner and Merlot.