Apart from its main crops of 3 hectares (about 7 acres) of vine, 16 hectares (about 40 acres) of olive and 23 hectares (about 57 acres) of chestnut, the Quinta D'Alagoa also grows vegetables, has orchards and 10 hectares (about 25 acres) of Lameiro (water meadows). There are oak, poplar and pine woods.
Organic farming was adopted throughout the farm in 2001 and is certified by SOCERT, the Portuguese Organic Quality Control entity.
No artificial chemicals are used in fertilization, neither are pesticides or herbicides used. The cattle consume only natural fodder.