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Quince

Flowering plant and fruit

  • 8 min read
  • 7 chapters
Painting of quince fruit and foliage
Pancrace Bessa · Public domain

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The quince tree is sometimes grown as an ornamental plant for its attractive pale pink blossoms and as a miniature bonsai plant.

Description

Quinces are shrubs or small trees up to 4 to 6 metres (13 to 20 feet) tall and 3 to 4.5 metres (10 to 15 feet) wide. Young twigs are covered in a grey down. The leaves are oval, and are downy on the underside. The solitary flowers, produced in late spring after the leaves, are white or pink.

The ripe fruit is aromatic but remains hard; gritty stone cells are dispersed through the flesh. It is larger than many apples, weighing as much as 1 kilogram (2.2 lb), often pear-shaped but sometimes roughly spherical.

The seeds contain nitriles, common in the seeds of the rose family. In the stomach, enzymes or stomach acid or both cause some of the nitriles to be hydrolysed and produce toxic hydrogen cyanide, which is a volatile gas. The seeds are toxic only if eaten in large quantities.

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