Castelão, in Portugal also known as Periquita and João de Santarém, is a red wine grape found primarily in the south coastal regions but is grown all over Portugal and is sometimes used in Port wine production. The name is derived from the Portuguese term for parakeet.
The vine thrives in sandy soils but is able to adapt to a variety of conditions. It produces a wine that can be harshly tannic in its youth but softens as it ages. In the Algarve VR, it is often blended with Negra Mole to produce a wine with less aging potential but less harsh in its youth.
- J. Robinson Vines, Grapes & Wines pg 217 Mitchell Beazley 1986 ISBN 1-85732-999-6
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