Clare Valley

The Clare Valley Wine and Grape Association (CVWGA) notes that the Ngadjuri people cared for and connected with the valley's hills, waterways and soils for thousands of years. Decanter (2026) dates the arrival of the first Europeans to 1838, and Wine Australia says the region was settled in the late 1830s, with the first vineyards planted and wines produced in the early 1840s. James Lawther MW, writing in Decanter in 2003, credits Englishman John Horrocks with planting the first vines in 1840. The CVWGA lists early plantings by John Horrocks in Penwortham, the Hawker brothers at Bungaree, and Clare founder Edmund Gleeson at Inchiquin. Austrian Jesuit priests arrived at Sevenhill to build a monastery and planted vineyards; the CVWGA says they built the region's first winery in 1852 to produce their sacramental wine, while Decanter (2026) says the Jesuits founded Sevenhill Cellars, the first winery, in 1851. Decanter (2026) also records that Alfred Percy Birks established the Wendouree vineyard in 1893, planting heritage Shiraz vines that are still thriving today. Lawther (2003) notes that by 1897 there were 580 hectares under production, with little mention of Riesling at that stage, and that it was not until the 1950s that Riesling began to be taken seriously; he names Leasingham (originally the Stanley Wine Company), Tim Knappstein and Leo Buring as helping put Clare Riesling on the map in the 1960s and 1970s. Decanter (2026) gives founding years of 1959 for Jim Barry Wines, 1969 for Wakefield Taylors and Knappstein, and 1981 for Grosset. According to the CVWGA, the first screw cap trials were instigated in the 1970s by Yalumba, and in 2000 Clare Valley winemakers banded together to champion the Stelvin screw cap closure; Decanter (2026) describes a group of 13 Clare Valley winemakers, led by Jeffrey Grosset, making that decision for their top Rieslings. The AWRI records that screw cap trials, widely undertaken during the 1970s, were reinvigorated in the late 1990s by New Zealand winemakers and Clare Valley Riesling producers, and cites 2016 International Wine Challenge entries in which 89.3% of the Australian wines submitted were sealed with screw caps.

• 1840: John Horrocks plants the first vines (Lawther, Decanter, 2003); the CVWGA places his early plantings in Penwortham
• Sevenhill: Decanter (2026) dates the Jesuits' Sevenhill Cellars 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 (Decanter, 2026)
• 2000: 13 Clare Valley winemakers led by Jeffrey Grosset champion the Stelvin screwcap for their top Rieslings (Decanter, 2026)

Decanter (2026) describes Clare Valley as around 35 km long and 5 to 10 km wide, covering roughly 680 square kilometres, around 130 km north of Adelaide. The CVWGA describes 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, and Lawther (Decanter, 2003) describes three parallel ranges of hills and valleys running north-south: from west to east, Skillogalee, Clare and Polish Hill River. The CVWGA says many vineyards sit at 400 to 500 metres above sea level, with altitudes to 608 metres at Mt Horrocks. A 2005 climate profile prepared for the Grape and Wine Research and Development Corporation by Davidson Viticultural Consulting Services gives a nominal elevation of 400 to 500 metres, with Mount Horrocks at 600 metres, Rhynie at 252 metres and White Hut at 62 metres. Wine Australia's 2025-26 Regional Snapshot gives 190 to 609 metres as the highest and lowest points of the GI, regardless of whether a vineyard sits there. The CVWGA calls the climate Mediterranean, with typically warm to hot summers and cool to cold winters, and gives average daily temperatures of around 30°C to 35°C and night-time averages of 8°C to 13°C in the height of summer when the grapes are ripening. The 2005 GWRDC climate profile reports continentality factors of 12.99 to 14.5 across its five recording sites. Wine Australia notes that drops from 40°C during the day to 1°C at night are common during the main ripening months, and that cooling afternoon breezes play a major role in slowing down ripening. Wine Australia's 2025-26 Regional Snapshot gives a 2006-2025 average of 517 mm of rainfall a year, with 223 mm falling from October to April. The CVWGA says 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, with altitudes to 608 m at Mt Horrocks (CVWGA); the GI spans 190 to 609 m (Wine Australia Regional Snapshot 2025-26)
• Wine Australia: drops from 40°C by day to 1°C at night are common during the main ripening months
• Rainfall: 2006-2025 average 517 mm a year, 223 mm from October to April (Wine Australia Regional Snapshot 2025-26)
• Frost: the 2005 GWRDC climate profile records a September to November mean frost incidence of 9.9 at its Polish Hill River station, which it notes sits in a frosty hollow

Wine Australia records 11 different recognised soil types in the region, noting that Polish Hill is known for broken slate and that Watervale has limestone in its sub-soils. Decanter (2026) says the soils formed over ancient rocks hundreds of millions of years old: 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. The two most famous soil types, per Decanter (2026), 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. Lawther (Decanter, 2003) wrote that in the south around Watervale the limestone content is greater and water retention better, with zesty and more consistent wines; 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. The CVWGA describes a complex mix of ancient soils including red loams, limestone, slate and shale, and says many vineyards are dry-grown. Wine Australia's 2025-26 Regional Snapshot gives an average yield of 3.0 tonnes per hectare for Clare Valley in 2026, against 8.1 for all regions.

• Watervale: terra rossa over limestone (Decanter, 2026) and limestone in the sub-soils (Wine Australia)
• Polish Hill River: grey loam over broken blue slate (Decanter, 2026); Wine Australia notes Polish Hill is known for broken slate
• 11 recognised soil types (Wine Australia)
• Many vineyards dry-grown (CVWGA); 2026 average yield 3.0 t/ha against 8.1 t/ha for all regions (Wine Australia Regional Snapshot 2025-26)

Wine Australia names Riesling, Shiraz and Cabernet Sauvignon as the main varieties grown in the region. Wine Australia's 2025-26 Regional Snapshot puts Riesling at 35%, Shiraz at 30%, Cabernet Sauvignon at 17%, Pinot Gris/Grigio at 4% and Merlot at 3% of the region's tonnes in 2026, from an estimated 15,183 tonnes crushed; the same snapshot lists red varieties at 72% of plantings, with variety shares from the ABS vineyard survey of 2015. Wine Australia says Riesling has become synonymous with Clare Valley, describes the typical style as quite restrained and austere when young with lime and mineral notes, and its 2026 Clare Valley page says Clare Riesling represents 20% of total Riesling crushed each year in Australia. Lawther (Decanter, 2003) describes Clare Valley Riesling as 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. On acidity and alcohol, 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. Wine Australia describes Clare Valley Shiraz as typically full flavoured with ripe blackberry, spice and mint characteristics, and says the strong diurnal temperature shifts allow for acid retention and vibrant fruit quality; it describes Cabernet Sauvignon as displaying dark, rich black fruit characters with firm but plush tannins, often blended with Shiraz and sometimes a little Malbec. The CVWGA names Sangiovese, Tempranillo and Assyrtiko among the alternative varieties the region has welcomed.

• Clare Valley Riesling: restrained and austere when young, with lime and mineral notes (Wine Australia); 35% of the region's 2026 tonnes (Wine Australia Regional Snapshot 2025-26)
• Shiraz: full flavoured with ripe blackberry, spice and mint (Wine Australia); 30% of the region's 2026 tonnes (Wine Australia Regional Snapshot 2025-26)
• Cabernet Sauvignon: dark, rich black fruit and firm but plush tannins, often blended with Shiraz and sometimes a little Malbec (Wine Australia)
• Alternative varieties named by the CVWGA: Sangiovese, Tempranillo, 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 2026-09-28