When to Plant Okinawa Spinach in Canberra, Cold / Highland Guide
What this month normally looks like in Cold / Highland
In October the Cold / Highland zone normally runs 20°C by day and 7°C overnight, with about 58 mm of rain over 7 or 8 wet days. The coldest October night on record across the zone was -6.4°C, so a late frost is not out of the question. Averages 1991 to 2026, 15 postcodes, SILO.
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This Okinawa Spinach guide is written for the Cold / Highland zone, which takes in Canberra, Cooma and Bright. Somewhere else? Your postcode picks the right one.
Not your zone? Cairns Brisbane Sydney Melbourne Alice Springs Perth
Also handy: will it frost this week? and what grows in shade.
- Days to harvest
- 60 days
- Sun
- Full sun to part shade
- Spacing
- 60 cm apart
- Soil pH
- 6.1–6.5
Okinawa spinach is a low perennial to about 70 cm with green leaves that are purple underneath, grown from cuttings as a year-round cooked green in warm wet climates (Green Harvest).
Published · By GardenBuddy.au
Planting dates, current conditions and prices on this page update daily.
Photo: Wikimedia Commons
Best Planting Window for Cold / Highland
Okinawa Spinach is not recommended for Cold / Highland.
It is frost sensitive and needs soil above 25C to root (Green Harvest). No source lists it for cold or highland areas and the summer is too short and cool for an outdoor plant.
Want a nudge when it is sowing time?
One email a week with what is worth planting in the Cold / Highland zone right now, Okinawa Spinach included, plus which veg has jumped in price at the supermarket. Free, and you can stop it in one click.
How to Grow Okinawa Spinach in Cold / Highland Australia
- Soil
- Rich, fertile, well drained and mulched (Green Harvest).
- Salt
- Moderately sensitive. Copes with a little salt, but the harvest drops on salty bore water.
- pH Range
- 6.1-6.5
- Sunlight
- Full sun to part shade (Green Harvest, Daleys).
- Spacing
- 60cm apart, 60cm between rows
- Watering
- Ample water (Green Harvest).
- Grow before it
- Legumes (Beans - Dwarf, Peas, Broad Beans)
- Grow after it
- Fruiting crops (Tomato, Capsicum, Zucchini)
Give the bed 3 turns before leafy greens go back in. Leaf crops want the nitrogen the legumes left behind.
Cold / Highland Growing Tips for Okinawa Spinach
Key Challenges
- Frost
Pro Tips
- Heated glasshouse only
Pests and problems for Okinawa Spinach in Cold / Highland
Harvesting Okinawa Spinach
When ready: Young leaves and shoot tips once the plant is bushy (Green Harvest).
How to harvest: Pinch tips and young leaves; this doubles as the pruning the plant needs (Green Harvest).
What members get
- Soil and weather from your nearest station
- An email when it's time to sow
- Your own garden plan, including planning from a photo
- Price history and price alerts
- Pest risk alerts for your area
- Full salt and canning detail
Common Questions About Okinawa Spinach
When do you plant okinawa spinach in Australia?
It depends on your climate zone, not the calendar month alone. Planting months by zone:
- Tropical (Cairns): Jan to Apr, Oct to Dec
- Subtropical (Brisbane): Jan to Apr, Sep to Dec
- Warm Temperate (Sydney): Jan to Mar, Oct to Dec
- Cool Temperate (Melbourne): Jan, Nov to Dec
- Cold / Highland (Canberra): not recommended
- Arid / Semi-Arid (Alice Springs): Mar to Apr, Sep to Nov
- Mediterranean (Perth): Jan to Mar, Oct to Dec
When should I plant Okinawa Spinach in Canberra?
It is frost sensitive and needs soil above 25C to root (Green Harvest). No source lists it for cold or highland areas and the summer is too short and cool for an outdoor plant.
How do I know when Okinawa Spinach are ready to harvest?
Young leaves and shoot tips once the plant is bushy (Green Harvest).
Are okinawa spinach salt tolerant?
Only a little. Okinawa spinach are moderately sensitive to salt, so the harvest drops on salty bore water. Mix salty water with rainwater, and mulch the bed.
Which zone am I in?
Type your postcode into the box near the top of the page and it tells you, and links this crop in your own zone if it differs. Or look it up on the grow zone map. This page is the Cold / Highland zone, Canberra is its reference city.