Though not related to true spinach, the leaves of New Zealand taste similar and some think better than spinach.
Tolerant to heat and resistant to bolting, it does not typically turn bitter in hot weather. The flavor is better if plants have some shade from the sun. Soaking seeds in warm water overnight before planting can help improve germination. This cool-weather vegetable is easy to grow in rich, well-drained soil. Requires plenty of moisture.