Quince

QuinceQuince — The Quince, or Cydonia oblonga, is the sole member of the genus Cydonia and native to warm-temperate southwest Asia in the Caucasus region. It is a small deciduous tree, growing 5-8 m tall and 4-6 m wide, related to apples and pears, and like them has a pome fruit, which is bright golden yellow when mature, pear-shaped, 7-12 cm long and 6-9 cm broad.

The immature fruit is green, with dense grey-white pubescence which mostly (but not all) rubs off before maturity in late autumn when the fruit changes colour to yellow with hard flesh that is strongly perfumed. The leaves are alternately arranged, simple, 6-11 cm long, with an entire margin and densely pubescent with fine white hairs. The flowers, produced in spring after the leaves, are white or pink, 5 cm across, with five petals.

Quince is used as a food plant by the larvae of some Lepidoptera species including Brown-tail, Bucculatrix bechsteinella, Bucculatrix pomifoliella, Coleophora cerasivorella, Coleophora malivorella, Green Pug and Winter Moth.

Quince is frost hardy and requires a cold period below 7 °C to flower properly. The tree is self fertile however yield can benefit from cross fertilization. The fruit can be left on the tree to ripen further which softens the fruit to the point where it can be eaten raw in warmer climates, but should be picked before the first frosts.

Most varieties of quince are too hard, astringent and sour to eat raw unless ‘bletted’ (softened by frost and subsequent decay). They are used to make jam, jelly and quince pudding, or they may be peeled, then roasted, baked or stewed. The flesh of the fruit turns red after a long cooking time. The very strong perfume means they can be added in small quantities to apple pies and jam to enhance the flavour. Adding a diced quince to applesauce will enhance the taste of the applesauce with the chunks of firmer tarter quince. The term “marmalade”, originally meaning a quince jam, derives from the Portuguese word for this fruit marmelo. The fruit, like so many others, can be used to make a type of wine.

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