Tetragonia tetragonioides (Sea Spinach)

How to grow Tetragonia tetragonioides (Sea Spinach) in NZ

Tetragonia tetragonioides (Sea Spinach) grows best in full sun and well drained, sandy soils. It thrives in warm, coastal environments and tolerates salt, wind, and drought once established. Water regularly during the early stages of growth, then reduce watering as the plant matures. It prefers nutrient poor soils and performs well in coastal gardens where few other plants thrive. This native-like species spreads easily, forming dense mats that help prevent soil erosion.

Tetragonia tetragonioides (Sea Spinach) care tips

Tetragonia tetragonioides (Sea Spinach) is very easy to care for. Water young plants regularly, especially in dry spells, to help establish roots. Once established, it needs minimal attention. Trim back stems as needed to control spread and encourage fresh growth. Fertiliser is rarely required, as the plant thrives in low nutrient conditions. Harvest leaves regularly for cooking, as this promotes bushier, healthier growth throughout the growing season.

Tetragonia tetragonioides (Sea Spinach) size, spacing, and growth rate

Tetragonia tetragonioides (Sea Spinach) typically grows 20–40 cm tall and spreads up to 2 metres wide. It has a fast growth rate, quickly forming dense mats of trailing stems. When planting as a groundcover, space plants 60–80 cm apart to achieve full coverage within one season. Its low, sprawling habit and vigorous nature make it highly effective for stabilising sandy soils, coastal slopes, and exposed garden areas.

Landscaping uses for Tetragonia tetragonioides (Sea Spinach)

Tetragonia tetragonioides (Sea Spinach) is ideal for coastal gardens, edible landscapes, and erosion control projects. Its attractive, succulent foliage adds a lush green texture to garden beds and dunes. It pairs well with other hardy species such as Spinifex, Coprosma, and Muehlenbeckia. In edible gardens, it provides nutritious, spinach-like leaves that can be harvested year round. Sea Spinach combines function, beauty, and resilience in NZ landscapes.

Why buy Tetragonia tetragonioides (Sea Spinach) from The Plant Company?

When you buy Tetragonia tetragonioides (Sea Spinach) from The Plant Company, you are purchasing from NZ’s most trusted plant nursery. Our plants are grown to ensure they are healthy, strong, and ready to thrive in NZ conditions. We provide expert advice, premium quality plants, and secure delivery across NZ. Choosing The Plant Company means investing in the best quality coastal and edible plants supported by excellent service and horticultural expertise.