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botanical name:
Tetragonolobus purpureus
Tetragonolobus purpureus © Deeproot Plant Base
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common name:  Asparagus Pea, Winged Pea, Dragon's Teeth
synonyms:  Lotus tetragonolobus
family:  Fabaceae
characteristics: annual/biennial
height: 0.45m
width: 0.45m
growth rate: fast
growth habit: semi-prostrate
leaf colour: blue-green
flower colour: maroon
fruit colour: light green
main season: Summer
edible symbol edible
aspect: full sun
conditions: dry soil, moist soil, sandy soil, coastal
preferred soil pH: any
minimum temp: -12°C
USDA zone: 8 to 10
description:
Semi-erect to sprawling annual with green to bluish-green 3-lobed leaves. Attractive flowers of an unusual shade of a fine brownish purple-red. Distinctive, square-sectioned, winged, edible seed pods.

cultivation:
Well drained soil in full sun. Grows naturally on fairly poor rocky soils.

For culinary use, pods should be harvested while young and small, less than 4cm.

propagation:
From seed, sown in April or May.

usage:
Edible vegetable, the young pods and seeds can be eaten cooked or raw in salads. They have an unsual flavour reminiscent of Asparagus.
Flowers are very ornamental.

other notes:
Originally from the Mediterranean area and the Near East, now extensively cultivated elsewhere.

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