Si Vintners is a winery in Rosa Glen in the Margaret River region of Western Australia. Founder owners Sarah Morris and Iwo Jakimowicz are husband and wife, and both are qualified winemakers. They had been working in Calatayud, Spain, for a co-operative but decided to return home to Australia in September 2010, acquiring a 12.1 hectare (30-acre) estate with 8 hectares (20 acres) under vine, the majority of which had been planted in 1978. The property is situated just south of the Margaret River township, Western Australia. They maintained ties with Calatayud by creating the Casa de Si winery there with friends.

Owners: Sarah Morris and Iwo Jakimowicz.

Vineyards: Since purchasing the property, the vineyard has been farmed 100% organic, biodynamic.

Certification: I emailed the owners in June 2018 for clarification of any organic or Biodynamic certification (awaiting response).

Winemaking: Limited sulfur dioxide additions at bottling. No fining or filtration.

White wines

Baba Yaga: Sauvignon Blanc.

Lello: A skin-contact Semillon-Sauvignon Blanc. Unfiltered.

Semolina: Flor-aged Semillon.

White Si2010 Semillon, Chardonnay. Fermented in a mix of concrete eggs, oak foudres and stainless steel. 40 mg/l sulfites.

Rosé wines

Pinot Noir Rosé

Red wine

Cabernet Sauvignon, Cachorro

Cabernet Sauvignon, Halcyon


Si Vintners |


Isabelle Legeron MW, Natural Wine, An introduction to organic and biodynamic wines grown naturally (2014, Cico Books, London & New York), p.158.