Calçots of the Baix Penedès Food and drink · Santa Oliva, Baix Penedès, Tarragona The comarca is one of the four large producers of calçots in Catalonia. The shoots are planted in summer, earthed up during the autumn and gathered from January to March to be roasted over vine shoots at the calçotades. Photo: Vedranell~commonswiki (Wikimedia Commons) (CC BY 2.0) What to see and do in Santa Oliva