When to plant Peas in Cool Australia

Cool zone — applies to Hobart, Canberra, Ballarat, Orange, Armidale and similar areas. Growing elsewhere? Temperate · Subtropical · Tropical · Arid.

Peas are sown direct from April to October in the cool zone — one of the longest windows of any vegetable here, and a mark of how well they fit a Canberra or Hobart climate. Sow deep, 30–50 mm, and expect emergence in 7–14 days, then a long, steady run of 84–126 days to full production. The window splits naturally in two: autumn sowings in April and May for plants that overwinter and crop in early spring, and late-winter to spring sowings from July to October for the classic spring harvest.

Sowing calendar — cool zone

Green months are your sowing window: April to October.

Growing notes

Pea plants are thoroughly frost hardy — the vines shrug off cool-zone winters — but the flowers and young pods are not, and that single fact should drive your timing. An autumn sowing in Orange or Ballarat will sit semi-dormant through winter, which is fine, but if it flowers into July frosts the blossoms blacken and set nothing; the aim is for flowering to arrive as the worst frosts taper off in early spring. In the coldest districts, many gardeners skip autumn sowing entirely and sow from late July through October instead, accepting a later but more reliable harvest given the long 84–126-day haul to full production.

Peas like cool, well-drained soil that was fed for a previous crop, a touch of lime, full winter sun, and support even for so-called dwarf varieties. Do not add nitrogen fertiliser — they make their own, and extra just delays flowering.

The commonest cool-zone failure is seed rotting before emergence in cold, waterlogged winter soil. Water once at sowing and then leave the row alone until shoots appear — in a wet Hobart winter that may mean not watering at all. Mice and slugs also target the sweet seed and seedlings, so sow a little thickly at 15–20 cm spacings and protect early rows. Pick daily once pods start; production stops the moment mature pods stay on the vine.

Peas at a glance

Companion planting

Grows well with

Carrot: Peas fix nitrogen that benefits carrots; good space use

Lettuce: Peas fix nitrogen for lettuce; provide light shade in summer

Mint: Deters aphids and pea moth

Keep away from

Garlic: Alliums inhibit nitrogen-fixing bacteria in legume roots

Onion: Alliums inhibit legume growth

Onion: Alliums inhibit legume growth

Common questions

When should I plant peas in the cool zone?

Sow direct from April to October. Autumn sowings overwinter and crop in early spring; in very frosty districts, late July to October sowings are more reliable because flowers escape the worst frosts.

Why are my pea seeds rotting in the ground?

Cold, waterlogged soil is the usual cause. Sow 30–50 mm deep into free-draining ground, water once, then hold off watering until shoots emerge in 7–14 days.

Do peas survive frost?

The plants do — peas are fully hardy and overwinter well in cool climates. The flowers and young pods do not, so time sowings so flowering falls after the hardest frosts.

How long do peas take from sowing to picking?

Allow 84–126 days to full production, with germination in 7–14 days. Winter-sown rows sit at the slow end because growth nearly pauses in the cold.

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