Planting guide
When to plant komatsuna
Mild Japanese mustard spinach that tolerates both heat and cold; ready in a month. In Melbourne it goes in Mar–Jun.
- Start as
- Seed, sown in place
- Ready in
- 4–6 wks
- Spacing
- 15 cm
- Depth
- 0.5 cm
- Sun
- Half a day (3–6 hours)
- Water
- Regular
- Effort
- Easy
- Frost-tender
- No
When it goes in
● means komatsuna can go in that month, ○ means wait. Worked out from each town's climate zone and season, the way planting guides do it. Pick your town for the full list for that month.
| Town | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sydney | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Melbourne | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Brisbane | ○ | ○ | ○ | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Perth | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Adelaide | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Gold Coast | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Newcastle | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Sunshine Coast | ○ | ○ | ○ | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Canberra | ● | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ● | ● | ● |
| Central Coast | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Geelong | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Wollongong | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Hobart | ● | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ● | ● | ● |
| Townsville | ○ | ○ | ○ | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Cairns | ○ | ○ | ○ | ○ | ● | ● | ● | ○ | ○ | ○ | ○ | ○ |
| Toowoomba | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Darwin | ○ | ○ | ○ | ○ | ● | ● | ● | ○ | ○ | ○ | ○ | ○ |
| Ballarat | ● | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ● | ● | ● |
| Mandurah | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Bendigo | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Launceston | ● | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ● | ● | ● |
| Mackay | ○ | ○ | ○ | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Rockhampton | ○ | ○ | ○ | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Coffs Harbour | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Blue Mountains | ● | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ● | ● | ● |
| Bunbury | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Bundaberg | ○ | ○ | ○ | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Alice Springs | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Mildura | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Port Macquarie | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Town | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Auckland | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Wellington | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Christchurch | ● | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ● | ● | ● |
| London | ○ | ○ | ○ | ● | ● | ● | ● | ● | ● | ● | ● | ○ |
| Manchester | ○ | ○ | ○ | ● | ● | ● | ● | ● | ● | ● | ● | ○ |
| Edinburgh | ○ | ○ | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
| Dublin | ○ | ○ | ○ | ● | ● | ● | ● | ● | ● | ● | ● | ○ |
| New York City | ○ | ○ | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
| Los Angeles | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ● | ● | ● | ● |
| Chicago | ○ | ○ | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
| Seattle | ○ | ○ | ○ | ● | ● | ● | ● | ● | ● | ● | ● | ○ |
| Austin | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ● | ● | ● | ● |
| Toronto | ○ | ○ | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
| Vancouver | ○ | ○ | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
| Cape Town | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Johannesburg | ○ | ○ | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Singapore | ● | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ● | ● |
| Mumbai | ● | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ● | ● |
| Paris | ○ | ○ | ○ | ● | ● | ● | ● | ● | ● | ● | ● | ○ |
| Berlin | ○ | ○ | ● | ● | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
How to plant komatsuna
- Sow thinly and cover lightly.
- Thin to 15 cm or cut dense as baby leaves.
- Water regularly.
- Harvest outer leaves.
Komatsuna varieties
Classic varieties are the reliable, widely grown ones. Adventurous ones are heirlooms, odd colours and rarities.
- Tokyo Early Classicfast · 4–6 wksJapanese mustard spinach
- Red Leaf Classiccolourful · 4–6 wksRed-leaf komatsuna
Where to buy seeds
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Shops shown are for Australia. The chooser picks shops for your country.
Good companions
Komatsuna by month
Jan · Feb · Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec
More to plant
Not sure komatsuna is right for your space? Answer a few taps and see everything that can go in this week.
Find what else you can plant now