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: