When to Plant Spinach in Canberra, Cold / Highland Guide
Sow March to October. Right now in October you can sow.
Grow Spinach in your space
- Planting window
- Sow from March to October. Highland conditions suit spinach well. Summer is usually too warm in exposed locations.
- Days to harvest
- 35 days
- Sunlight
- Full sun in cool weather. Part shade beneficial in all but the coldest zones. Shade delays bolting.
- Water needs
- Consistent moisture essential. Light, frequent watering keeps soil evenly moist. Drought...
- Spacing
- 20cm apart, 30cm between rows
- Soil pH
- 6.0-7.5
Published · Last reviewed · By GardenBuddy.au
Growing advice is reviewed by hand. Planting dates, current conditions and prices on this page update daily.
This 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.
Photo: Wikimedia Commons
True spinach (English spinach) is a cool-season annual prized for its tender, dark green leaves. It is one of the most nutritious leafy greens but also one of the most temperamental to grow in Australian conditions. It bolts rapidly in heat and long day-lengths, making it primarily an autumn-winter-early spring crop across most of Australia. Understanding this limitation is key to successful growing.
See what grows now in your own postcode
Planting Calendar for Cold / Highland
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| - | - | S/T/D | S/T/D | S/T/D | S/T/D | S/T/D | S/T/D | S/T/D | T/D | - | - |
S = Seed Tray T = Transplant D = Direct Sow
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Current Growing Conditions
Soil temperature: 13.6°C (optimal range: 4–25°C) ✓ Ready to plant
Modelled from Open-Meteo forecast (Canberra), not a live sensor.
What this month normally looks like
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.
How to Grow Spinach in Cold / Highland Australia
When to Plant
Sow from March to October. Highland conditions suit spinach well. Summer is usually too warm in exposed locations.
- Soil
- Rich, well-drained soil heavily enriched with compost and well-rotted manure. Spinach is a heavy feeder that demands fertile soil.
- pH Range
- 6.0-7.5
- Sunlight
- Full sun in cool weather. Part shade beneficial in all but the coldest zones. Shade delays bolting.
- Spacing
- 20cm apart, 30cm between rows
- Watering
- Consistent moisture essential. Light, frequent watering keeps soil evenly moist. Drought stress triggers bolting. Morning watering. Drip irrigation ideal.
Companion plants: Strawberry, Pea, Bean, Celery, Cauliflower, Radish
Avoid planting near: Beetroot (same family; shared pests and diseases)
Grow before, grow after
Spinach belongs with the leafy greens, the leafy greens and brassicas turn of a four turn bed rotation.
- 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 Spinach
Recommended Varieties
- Winter Giant
- Bloomsdale Long Standing
- Winter Bloomsdale
Key Challenges
- Hard frost damages leaves (plants survive)
- Short autumn window before freezing
- Summer warmth can trigger bolting
Pro Tips
- Highland conditions with cool summers suit spinach well
- Frost improves flavour (converts starches to sugars)
- Heavy mulch protects roots through winter
Harvesting Spinach
When ready: Baby spinach: leaves 5-8cm (3-4 weeks). Full size: leaves 15-20cm (6-8 weeks). Leaves should be dark green, firm, and glossy. Harvest before any sign of flower stalk elongation.
How to harvest: Cut-and-come-again: cut outer leaves at base, leaving inner leaves and growing point. Or cut entire plant 3cm above ground for one large harvest (may regrow once). Harvest in cool of morning.
Preserving: pressure canning
1 tested pressure-canning recipe for Spinach: 1 where it is the crop being canned. Each one comes from published home canning guidelines. The conversion to Australian units is ours, with psi beside every kPa. Always follow your pressure canner's manual.
Common Spinach Pests in Cold / Highland Zones
Leaf Miners, risk: MODERATE (score: 47/100)In the pest library for spinach:
Downy Mildew, high severity Common Garden Snail, high severity Aphids (Green Peach, Cabbage, Cotton), moderate severity Rust (various), moderate severity Slugs, moderate severityOrganic prevention (Leaf Miner): Cover with fine mesh. Remove affected leaves promptly. Crop rotation.
Where to next
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Open the planting dashboard Join GardenBuddy.auCommon Questions About Spinach
When do you plant spinach in Australia?
It depends on your climate zone, not the calendar month alone. Planting months by zone:
- Tropical (Cairns): Apr to Aug
- Subtropical (Brisbane): Apr to Jul
- Warm Temperate (Sydney): Mar to Aug
- Cool Temperate (Melbourne): Feb to Sep
- Cold / Highland (Canberra): Mar to Oct
- Arid / Semi-Arid (Alice Springs): Mar to Aug
- Mediterranean (Perth): Mar to Aug
Does spinach grow all year round in Canberra?
No. In the Cold / Highland zone the planting months are Mar to Oct. Outside that window it either bolts, sulks or gets cut down by the weather.
Which zone am I in?
Type your postcode into the box under the heading and the page 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.