Invernaderos de El Ejido Curiosity · El Ejido, Poniente Almeriense, Almería The plastic greenhouse, or 'parral', system became widespread in the comarca from 1961 following the 1953 Colonisation Plan, transforming the former Campo de Dalías into the largest area of plastic-covered farmland in Europe. Photo: MdeVicente (CC0) What to see and do in El Ejido