Clare Valley

For thousands of years, the Ngadjuri people cared for and connected with the valley's hills, waterways and soils. The first Europeans arrived in 1838, and the region was settled in the late 1830s, with the first vineyards planted and wines produced in the early 1840s. Englishman John Horrocks planted the first vines in 1840. Early plantings were made by John Horrocks in Penwortham, the Hawker brothers at Bungaree, and Clare founder Edmund Gleeson at Inchiquin. Austrian Jesuit priests arrived in Sevenhill to build a monastery, planting vineyards. The CVWGA dates the region's first winery, built by the Jesuits to produce their sacramental wine, to 1852, while Decanter (2026) dates the founding of Sevenhill Cellars, the first winery, by the Jesuits to 1851. Alfred Percy Birks established the Wendouree vineyard in 1893, planting heritage Shiraz vines that are still thriving today. By 1897 there were 580 hectares under production, with little mention of Riesling at that stage, and it was not until the 1950s that Riesling began to be taken seriously. Producers such as Leasingham (originally the Stanley Wine Company), Tim Knappstein and Leo Buring helped put Clare Riesling on the map in the 1960s and 1970s. Jim Barry Wines was founded in 1959, Wakefield Taylors and Knappstein in 1969, and Grosset in 1981. The first screw cap trials were instigated in the 1970s by Yalumba. Global screw cap trials, widely undertaken during the 1970s, were reinvigorated in the late 1990s by New Zealand winemakers and Clare Valley Riesling producers. In 2000 a group of 13 Clare Valley winemakers, led by Jeffrey Grosset, banded together to champion the Stelvin screw cap closure for their top Rieslings. Entries to the 2016 International Wine Challenge showed that 89.3% of the Australian wines submitted were sealed with screw cap closures.

• 1840: Englishman John Horrocks plants the first vines; early plantings by Horrocks were in Penwortham
• Sevenhill: Decanter (2026) dates the Jesuits' Sevenhill Cellars, the first winery, to 1851; the CVWGA dates the region's first winery, built by the Jesuits for sacramental wine, to 1852
• 1893: Alfred Percy Birks establishes the Wendouree vineyard
• 2000: a group of 13 Clare Valley winemakers led by Jeffrey Grosset champions the Stelvin screwcap for their top Rieslings

Clare Valley is around 35 km long and 5 to 10 km wide, covering an area of roughly 680 square kilometres. It is a gently folded landscape of valleys, ridgelines and rolling hills at the northern end of the Mount Lofty Ranges in the Mid-North region of South Australia, with three parallel ranges of hills and valleys running north-south: from west to east, Skillogalee, Clare and Polish Hill River. Many vineyards sit at 400 to 500 metres above sea level. The CVWGA gives altitudes to 608 metres at Mt Horrocks, while a 2005 climate profile prepared for the Grape and Wine Research and Development Corporation by Davidson Viticultural Consulting Services puts Mount Horrocks at 600 metres, with Rhynie at 252 metres and White Hut at 62 metres. The highest and lowest points of the GI, regardless of whether there is a vineyard at that location, are 609 and 190 metres. The CVWGA calls the climate Mediterranean, with typically warm to hot summers and cool to cold winters; in the height of summer, when the grapes are ripening, the average daily temperature is around 30°C to 35°C and the average night-time temperature is between 8°C and 13°C. In a 2005 study, continentality factors at five recording sites ranged from 12.99 to 14.5. Drops from 40°C during the day to 1°C at night are common during the main ripening months, and cooling afternoon breezes play a major role in slowing down the ripening process. The 2006-2025 average rainfall was 517 mm, with 223 mm falling from October to April. Spring frost can be an issue on low-lying vineyards, particularly on the eastern and southern fringes of the region and on some river flats at the northern end of the valley, while hail damage is generally considered a low risk.

• Many vineyards at 400 to 500 m; the CVWGA gives altitudes to 608 m at Mt Horrocks; the GI spans 190 to 609 m
• Drops from 40°C by day to 1°C at night are common during the main ripening months
• Rainfall: 2006-2025 average 517 mm, 223 mm from October to April
• Frost: in a 2005 study, the Polish Hill River weather station, located in a frosty hollow, recorded a September to November mean frost incidence of 9.9

The region has 11 different recognised soil types, formed over ancient rocks hundreds of millions of years old; Polish Hill is known for broken slate, and Watervale has limestone in its sub-soils. Around 500 million years ago the region sat on mountain peaks 10,000 m high, which eroded to leave a flat plain before further land shifts created today's series of north-south valleys and ridges. According to Decanter (2026), the two most famous soil types are terra rossa (red earth) over limestone in Watervale and grey loam over broken blue slate in Polish Hill River; elsewhere, vineyards in the north are planted on deep, fertile alluvial soils, while sandy loam and degraded quartz are found in the west. James Lawther MW, writing in Decanter in 2003, found that in the south around Watervale the limestone content is greater, water retention better and the wines zesty and more consistent; that in the east at Polish Hill River the soils are mainly loam and shale and the wines tauter and minerally; and that in the north around the town of Clare the soils are more variable, the climate warmer and the wines fuller. Underlying the vineyards is a complex mix of ancient soils, including red loams, limestone, slate and shale, and many vineyards are dry-grown. In the 2026 crush, the average yield was 3.0 tonnes per hectare, against 8.1 for all regions.

• Watervale: terra rossa over limestone, with limestone in the sub-soils
• Polish Hill River: grey loam over broken blue slate; Polish Hill is known for broken slate
• 11 recognised soil types
• Many vineyards dry-grown; 2026 average yield 3.0 t/ha against 8.1 t/ha for all regions

The main varieties grown in the region are Riesling, Shiraz and Cabernet Sauvignon. In 2026 Riesling made up 35%, Shiraz 30%, Cabernet Sauvignon 17%, Pinot Gris/Grigio 4% and Merlot 3% of the region's tonnes, from an estimated 15,183 tonnes crushed; red varieties made up 72% of plantings, on variety shares from the ABS vineyard survey of 2015. Riesling has become synonymous with Clare Valley; its typical style is quite restrained and austere when young, with lime and mineral notes, and Clare Riesling represents 20% of total Riesling crushed each year in Australia. Lawther (Decanter, 2003) found Clare Valley Riesling dry, intense and full of lime and citrus fruit character in youth, taking on a golden-yellow hue with age and developing a buttered toast, almost butterscotch flavour. Tyson Stelzer, writing in Decanter in 2010, credited the classic cool nights with sustaining the signature acidity of the 2009 Clare and Eden Valley Rieslings, and characterised the standout 2009 Clare Rieslings by restrained alcohol, nervy lime fruit, fragrant lemon blossom and great minerality. Decanter (2026) finds Watervale Rieslings aromatic and citrus, and Polish Hill River Rieslings more mineral and steely. Clare Valley Shiraz is typically full flavoured with ripe blackberry, spice and mint characteristics, and the strong diurnal temperature shifts allow for acid retention and vibrant fruit quality. Cabernet Sauvignon displays dark, rich black fruit characters with firm but plush tannins, and is often blended with Shiraz and sometimes a little Malbec. The region has welcomed alternative varieties including Sangiovese, Tempranillo and Assyrtiko.

• Clare Valley Riesling: typical style restrained and austere when young, with lime and mineral notes; 35% of the region's 2026 tonnes
• Shiraz: typically full flavoured with ripe blackberry, spice and mint; 30% of the region's 2026 tonnes
• Cabernet Sauvignon: dark, rich black fruit and firm but plush tannins, often blended with Shiraz and sometimes a little Malbec
• Alternative varieties welcomed in the region include Sangiovese, Tempranillo and Assyrtiko

Primary sources (Wine Australia, including its Register of Protected GIs; the Clare Valley Wine and Grape Association at clarevalleywine.com.au; and the Australian Wine Research Institute): https://www.wineaustralia.com/market-insights/regions-and-varieties/south-australia-wines/clare-valley, https://www.wineaustralia.com/labelling/register-of-protected-gis-and-other-terms/geographical-indications/clare-valley, https://www.wineaustralia.com/getmedia/dd59e442-2c3b-45d4-9191-4794a5554955/MI_Clare-Region-Snapshot-2025-26.pdf, https://www.wineaustralia.com/getmedia/ce3bdbc2-1838-43cb-83fb-4acda202327c/RT-04-15-3, https://clarevalleywine.com.au/region/about, https://clarevalleywine.com.au/region/climate, https://clarevalleywine.com.au/region/varieties, https://clarevalleywine.com.au/region/viticulture, https://www.awri.com.au/industry_support/winemaking_resources/storage-and-packaging/packaging-operations/applying-screw-cap-closures/. Secondary sources: https://www.decanter.com/wine/australia/get-to-know-clare-valley-in-six-wines/, https://www.decanter.com/features/the-beauty-of-clare-248566/, https://www.decanter.com/features/clare-eden-valley-riesling-246420/. Last verified 2026-10-05