Scientific Name
Tetragonia tetragonioides (Pall.) Kuntze
Synonym(s)
Demidovia tetragonoides, Tetragonia borealis, Tetragonia expansa
Common Name(s)
New Zealand Spinach, Botany Bay Spinach, Cook's Cabbage, Sea Spinach, Tetragon, Warrigal Greens, Warrigal Cabbage
Scientific Classification
Family: Aizoaceae
Genus: Tetragonia
Origin
Tetragonia tetragonioides is native to Argentina, Australia, Chile, Japan, and New Zealand.
Flower
Color: Yellow
Bloom Time: August to October
Description
Tetragonia tetragonioides is a leafy succulent groundcover that grows up to 8 inches (20 cm) tall. It has a trailing habit and can form a thick carpet on the ground or climb through other vegetation, hanging downwards. Leaves are triangular, bright green, and up to 6 inches (15 cm) long. They are thick and covered with tiny papillae that look like water drops on the top and bottom of the leaves.
The flowers are yellow, and the fruits are small hard capsules covered with small horns.
How to Grow and Care for Tetragonia tetragonioides
Hardiness: USDA hardiness zones 8a to 11b: from 10°F (-12.2°C) to 50°F (10°C).
It is grown for edible leaves and can be used as food or as an ornamental plant for ground cover. As some of its names suggest, it has a flavor and texture similar to spinach and is cooked like spinach. Like spinach, it contains oxalates. Its medium-to-low oxalate levels need to be removed by blanching the leaves in hot water for 1 minute, then rinsing in cold water before cooking. It is an invasive plant in North and South America and is cultivated along the East Asian rim. It thrives in hot weather and is considered an heirloom vegetable. Few insects consume it, and even slugs and snails do not seem to feed on it.
The thick, irregularly shaped seeds should be planted just after the last spring frost. Before planting, the seeds should be soaked for 12 hours in cold water or 3 hours in warm water. Seeds should be planted 0.2 to 0.4 inches (5 to 10 mm) deep and spaced 6 to 12 inches (15 to 30 cm) apart. The seedlings will emerge in 10 to 20 days, and they will continue to produce greens through the summer.
See more at How to Grow and Care for Tetragonia.
Links
- Back to genus Tetragonia
- Plantpedia: Browse flowering plants by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, or Origin
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