When to Plant Pecan in Perth, Mediterranean Guide

Out of season. Next window opens in June
What this month normally looks like in Mediterranean

In October the Mediterranean zone normally runs 22°C by day and 10°C overnight, with about 38 mm of rain over 6 or 7 wet days. The coldest October night on record across the zone was -0.2°C, so a late frost is not out of the question. Averages 1991 to 2026, 19 postcodes, SILO.

Jump to section
  1. Planting calendar
  2. How to grow
  3. Local tips and varieties
  4. Pests and problems
  5. Harvesting
  6. Storing and preserving
  7. Other zones and related crops
  8. Common questions

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This Pecan guide is written for the Mediterranean zone, which takes in Perth, Adelaide and Bunbury. Somewhere else? Your postcode picks the right one.

Not your zone? Cairns Brisbane Sydney Melbourne Canberra Alice Springs

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.

Pecan

Photo: Wikimedia Commons

Best Planting Window for Mediterranean

  • Jan -
  • Feb -
  • Mar -
  • Apr -
  • May -
  • Jun P
  • Jul P
  • Aug P
  • Sep -
  • Oct -
  • Nov -
  • Dec -

P = Planting window

Plant bare-root in winter in deep, free-draining soil. Trees need a lot of summer water and are better suited to the Adelaide Plains and south-west than dry Perth sands.

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How to Grow Pecan in Mediterranean 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)

Members see the exact salt threshold, how much harvest it loses as salt rises, and what to grow instead. See what members get

Mediterranean Growing Tips for Pecan

Recommended Varieties

  • Wichita
  • Western Schley
  • Pawnee

Key Challenges

  • Summer irrigation needed
  • Large tree

Pro Tips

  • Good zone. Dry conditions reduce scab.
  • Adelaide and Perth both viable with irrigation.

Pests and problems for Pecan in Mediterranean

Members see each pest score and pest risk alerts for your area. See what members get

Browse the full pest library →

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.

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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

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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:

When should I plant Pecan in Perth?

Plant bare-root in winter in deep, free-draining soil. Trees need a lot of summer water and are better suited to the Adelaide Plains and south-west than dry Perth sands.

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 are the best Pecan varieties for Perth?

Recommended varieties for the Mediterranean zone include: Wichita, Western Schley, Pawnee.

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 Mediterranean zone, Perth is its reference city.