Winery & Vintage Info
Home to one of Australia’s greatest single-vineyard wines.
The beautiful and historical name Mount Edelstone is a translation from the German Edelstein meaning gemstone. The dry-grown ungrafted centenarian vines were planted in 1912 by Ronald Angas, a descendant of George Fife Angas, who founded South Australia.
The vines are planted on their own roots, are dry grown and yield an average of 3 t/ha (1.25 t/acre). The vines are planted on a wide spacing of 3.7m between vines and 3.7m between rows. The original one-metre trellis consists of two wires which carry two to three arched canes with a bud number of around 50 to 60. The foliage is allowed to hang down to form a drooping canopy, which helps to reduce shoot vigour.
In 1989 Prue trialled 10 rows of a Scott Henry trellis in which the shoots from the top wire canes are trained upwards between foliage wires and the shoots from the bottom wire canes are trained downwards between foliage wires. The effect of this solar panel system is to provide a significant increase in exposure of the leaves and fruit to the sun, thereby increasing fruitfulness and promoting earlier ripening and a greater increase in colour and flavour of the fruit and improved tannin maturity.
This trellis has had such a positive impact on the quality of the wine that over three quarter of the vineyard has now been converted to it. Other trellis trials were also being evaluated including VSP (Vertical Shoot Positioned), high single wire, Smart Dyson and ballerina.
The Mount Edelstone vineyard is underlain entirely by laminated siltstones of the Tapley Hill Formation. The soils are fine sandy loams over deep gravelly medium red clays. The soil layer goes to a significant depth before reaching the bedrock. The pale mottled clay/clay loam layer indicates that a large degree of leaching and periodic water logging has occurred. Rocks beneath the red clay soils are schists of Cambrian age. These are metamorphosed mineral-rich sediments, originally deposited in a shallow sea, then deeply buried, and finally pushed back up to the surface where they weathered to produce a thick soil layer.
Matured in 80% French and 20% American (19% new, 81% seasoned) hogsheads for 18 months prior to blending and bottling.
The 2016 vintage began with well below-average winter rainfall, followed by a warm and dry spring, which enhanced flowering and set to give average to above-average yield potential. Low disease pressure was maintained by one of the hottest Decembers on record, though temperatures cooled down in the New Year and rainfall around veraison in late January brought relief to the dry-grown, old-vine Eden Valley vineyards. This was followed by further rainfall in early March which eased the stress on all varieties. The fruit matured with an earlier harvest, as predicted due to an early Easter. Open, light and airy vine canopies allowed for good flavour, sugar and colour and mature tannins to develop at harvest, which was overall characterised by average yields but very high quality.
