When to Plant Pecan 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 Pecan 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.
- Planting window
- Jun to Aug
- Sun
- Full sun
- Soil pH
- 6.0–7.0
Large deciduous nut tree native to the Mississippi River valley in the USA. Gets very large (15-30m) and needs ample space. Produces thin-shelled nuts with rich, buttery kernels.
Published · By GardenBuddy.au
Planting dates, current conditions and prices on this page update daily.
Photo: Wikimedia Commons
Best Planting Window for Cold / Highland
- Jan -
- Feb -
- Mar -
- Apr -
- May -
- Jun P
- Jul P
- Aug P
- Sep -
- Oct -
- Nov -
- Dec -
P = Planting window
You might be able to grow it here under the right conditions. Pecans need about 600 chill hours and 180 to 220 frost-free days, which only warm, sheltered sites manage. Plant young trees in winter and grow more than one variety for pollination. Nuts ripen in late April and May, and trees can take up to 10 years to crop well.
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How to Grow Pecan in Cold / Highland Australia
- Soil
- Deep, fertile, well-drained alluvial soil. Originally a bottomland/riverbank tree. Likes rich deep soil with good moisture-holding capacity. Tolerates some clay better than most nut trees. Deep taproot needs minimum 2m soil depth.
- Salt
- Moderately sensitive. Copes with a little salt, but the harvest drops on salty bore water.
- pH Range
- 6.0-7.0
- Sunlight
- Full sun. Needs high heat units for nut maturity.
- Good companions
- Grass (orchards often grassed), Legume cover crops
- Keep away from
- Buildings, infrastructure (massive tree)
Cold / Highland Growing Tips for Pecan
Key Challenges
- Insufficient heat units for nut maturity
Pro Tips
- Not suitable. Pecans need long hot summers.
Pests and problems for Pecan in Cold / Highland
Harvesting Pecan
When ready: Shuck (outer green covering) splits and separates from shell. Nuts fall from tree. Shell colour darkens.
How to harvest: Collect fallen nuts from ground (shake branches to accelerate). Remove shuck remnants. Dry in single layer in shade for 2-3 weeks.
Storing and preserving pecan
How to keep it
- Freezing (shelled). Crack, shell, vacuum seal or zip-lock. Keeps: 24 months.
- In-shell storage. Dry 2-3 weeks, store cool and dry. Keeps: 12 months.
- Roasting. Dry roast at 150°C for 10-15 minutes. Salt optional. Keeps: 1 month room temp, 6 months frozen.
- Candied pecans. Toss in egg white and sugar/spice mix. Bake at 120°C for 1 hour, stirring every 15 minutes. Keeps: 1 month.
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 Pecan
When do you plant pecan in Australia?
It depends on your climate zone, not the calendar month alone. Planting months by zone:
- Tropical (Cairns): not recommended
- Subtropical (Brisbane): Jun to Aug
- Warm Temperate (Sydney): Jun to Aug
- Cool Temperate (Melbourne): Jun to Aug
- Cold / Highland (Canberra): Jun to Aug
- Arid / Semi-Arid (Alice Springs): Jun to Jul
- Mediterranean (Perth): Jun to Aug
When should I plant Pecan in Canberra?
You might be able to grow it here under the right conditions. Pecans need about 600 chill hours and 180 to 220 frost-free days, which only warm, sheltered sites manage. Plant young trees in winter and grow more than one variety for pollination. Nuts ripen in late April and May, and trees can take up to 10 years to crop well.
How do I know when Pecan are ready to harvest?
Shuck (outer green covering) splits and separates from shell. Nuts fall from tree. Shell colour darkens.
What grows well with Pecan?
Good companion plants for Pecan include: Grass (orchards often grassed), Legume cover crops.
Are pecan salt tolerant?
Only a little. Pecan 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.