Mizuna (Asian greens)

Brassica rapa var. japonica
Botanical name
Brassica rapa var. japonica
Plant category
Leaf Salad

General

Mizuna (Asian greens)
Peter Turner Photography/Shutterstock.com

Asian greens aren't actually salad plants — they belong to the brassica family, more specifically to the leaf mustard group. That explains their more or less piquant, mustardy flavour. Pak choi, which you'll often find sold as a stir-fry vegetable, belongs to the same family and works just as well as a baby-leaf addition to your salad bowl.

Facts and figures

Light requirements
Sun / partial shade
Nutrient requirements
Medium feeder
Difficulty level
Easy
Culture (according to Gertrud Franck)
C - low growth, short growing period
Growing period
40 days
Row spacing
20 cm
Plant spacing
20 cm
Growth height
20 - 80 cm
Sowing depth
1 cm
Germination temperature (minimum)
18 °C
Germination temperature (optimal)
18 - 25 °C
Germination type
Light

Times

1
2
3
4
5
6
7
8
9
10
11
12
Direct sowing
Harvest

OutdoorsDirect sowing from Early March to Late September. After a growing period of 40 days, harvest can begin around Late March and continues until Late October.

GreenhouseDirect sowing from Early January to Late December. After a growing period of 40 days, harvest can begin around Early January and continues until Late December.

Sowing and planting

You can grow them in rows as indicated. The spacing given is fairly generous, allowing you to grow larger plants. For baby-leaf salad, you can reduce the spacing. Or broadcast sow them in a weed-free bed.

In a greenhouse, you can grow them all year round.

Neighbourhood

Bad neighbours

Crop rotation

If you only ever grow Asian greens in small strips alongside other crops, you can largely ignore crop rotation. But if you dedicate a whole bed to them, stick to the usual 3-year break before growing them or other brassicas in the same spot again.

Bad predecessors
Bad successors

Harvest and processing

You can pick the leaves young as baby-leaf or let them grow bigger for stir-fry dishes. Even when the plants flower, the leaves stay tasty. Just avoid the tough flower stalks.