Komatsuna Mustard Spinach Green

What Komatsuna Mustard Spinach Green is

Komatsuna Mustard Spinach Green is an annual vegetable of the cabbage family (Brassicaceae). Komatsuna, also known as Spinach Mustard, is one of the fastest-growing vegetables, grown for its sturdy and tasty green leaves.

They have a sweet, fresh flavour with a crisp texture. They can be harvested at both the young and mature stage.

Fully mature leaves develop a stronger mustard flavour.

Like other leafy vegetables, komatsuna grows well in a cool climate and can tolerate extremely low temperatures.

Mizuna and komatsuna are Japanese leafy vegetables with a mild, slightly peppery flavour — for salads, soups and stir-fries. They grow quickly and can be cut repeatedly.

Key features

• Measured germination rate of the batch: 95%
• Seeds per packet: 425–575 pcs (1 g)
• Seed origin: Italy
• Sowing: February – September; direct
• Harvest: March – November
• Position: sun to partial shade

When to sow Komatsuna Mustard Spinach Green

Komatsuna Mustard Spinach Green seeds are sown in February – September. Harvest takes place from March to November. The months are a guide for a temperate climate — in warmer areas sow 1–2 weeks earlier, in cooler or upland areas, later.

How to sow and grow Komatsuna Mustard Spinach Green

• Sowing method: direct
• Depth: 0.5–1 cm
• Spacing: 15–25 cm
• Germination: 3–7 days at 15–20 °C
• Position: sun to partial shade

Sow komatsuna seeds in spring (February to March), late summer (May-June) or autumn (September to November). Use well-drained, loamy, fertile and moist soil for planting komatsuna. The seeds should be sown directly into pots. Avoid transplanting, as the komatsuna plant has delicate roots and does not like being moved from place to place. Growing komatsuna in a container is the best idea because it does not take up much space. Choose a pot (container) that is 30-60 cm wide and 30-40 cm deep with suitable good drainage holes. The ideal temperature for seed germination is 18-23°C. Sow the seeds 1-2 cm deep and cover with soil. Also use organic fertiliser. The spacing between plants should be 10-15 cm. Water generously and keep the soil moist, especially during komatsuna germination. Place the pot in a sunny spot. They will germinate in 5-10 days depending on growing conditions. The optimum growing temperature is 10-35°C. Komatsuna is ready for harvest 30-40 days after planting. You can also pick leaves at any stage of development. Pick young leaves 25 days after planting and use them raw in salads or sandwiches. Harvest mature leaves after 40 days, when the leaves are about 7 cm long.

Sow in several batches in spring and late summer; water regularly.

Harvest and use

Cut the leaves 3–5 cm above the ground — the plant regrows.

Frequently asked questions

When should Komatsuna Mustard Spinach Green be sown?

The recommended months for sowing are February – September. Sowing method: direct.

How many seeds are in the packet?

The packet contains 425–575 seeds, pack size 1 g.

What is the germination rate of the seeds?

The measured germination rate of this batch is 95%. The test was carried out under controlled laboratory conditions; in the field, emergence depends on soil, temperature and moisture.