Komatsuna

Brassica rapa var. perviridis

In a typical UK garden, sow indoors early March to late March, sow outside late March to mid-September, plant out late March to late April, and harvest mid-April to late December.

When to sow, plant and harvest

Last frost around 20 April, first frost around 31 October.

Sow indoors
early March to late March
Sow outdoors
late March to mid-September
Plant out
late March to late April
Harvest
mid-April to late December

Growing facts

Spacing
20 cm apart, rows 30 cm apart
Square foot
4 per square (30 cm squares)
Sowing depth
1 cm
Ready in
21 to 40 days from sowing
Grows to
35 cm
Hardiness
Hardy to about -10 °C
Sun
Copes with some shade
Crops for
About 6 weeks

Growing tip

Sow in late summer and pick leaves through autumn and winter; it is hardier and slower to bolt than pak choi.

More brassicas

Where these figures come from

Every crop in VegLog was checked against published growing advice. Dates are worked out from average frost dates, so they shift with your garden. For komatsuna, we used:

Grow komatsuna with VegLog

Add komatsuna to a bed and VegLog reminds you when to sow, plant out and pick, timed to your own town's frost dates.