Seed sowing
Peas
Months to sow seed
April–September
The chart does not say whether to sow directly or under cover.
South Australia · Adelaide Plains
Green Adelaide · warm temperate reference
What to sow, when, on the Adelaide Plains.
Green Adelaide's local calendar gives seed-sowing windows for familiar vegetables. This guide keeps those months separate from its “Plant any time” list, seedling notes and seasonal care advice, so you can see what each source does and does not specify.
This is a focused Adelaide Plains reference, not a calendar for all of South Australia.
One local starting point
01 · Seed calendar
Months to sow seeds
02 · Source area
Adelaide Plains
Adelaide Plains · Australian months
Eight crops with seed-sowing windows
Green Adelaide's PDF chart is headed “Months to sow seeds.” It does not say whether to sow directly in the garden or under cover. These are seed-sowing windows, not seedling transplant dates.
Seed sowing
Broad beans
Months to sow seed
April–July
The chart does not say whether to sow directly or under cover.
Seed sowing
Broccoli
Months to sow seed
March–July
The chart does not say whether to sow directly or under cover.
Seed sowing
Basil
Months to sow seed
January–MarchSeptember–December
The chart does not say whether to sow directly or under cover.
Seed sowing
Tomatoes
Months to sow seed
JanuaryJuly–December
The chart does not say whether to sow directly or under cover.
Seed sowing
Cucumbers
Months to sow seed
JanuarySeptember–December
The chart does not say whether to sow directly or under cover.
Seed sowing
Zucchini
Months to sow seed
September–December
The chart does not say whether to sow directly or under cover.
Seed sowing
Pumpkins
Months to sow seed
From late September–December
The chart does not say whether to sow directly or under cover.
Green Adelaide · online summary
A separate “Plant any time” group
Green Adelaide lists these crops in its online summary, outside the PDF's “Months to sow seeds” chart. The summary does not specify whether to sow seed or use seedlings for these entries.
Bush beans
Plant any time
Cabbage
Plant any time
Leek
Plant any time
Lettuce
Plant any time
Radish
Plant any time
Rocket
Plant any time
Salad onions
Plant any time
Spring onions
Plant any time
Method not specified: the online summary does not say whether these entries mean seed or seedling.
Seasonal and care notes
Seedlings, frost, seasons and water
These notes answer different questions from the seed calendar. Keep the source wording and its level of detail in view as local conditions change.
Seedling note
Tomato and basil seedlings in spring
Green Adelaide says tomato and basil seedlings can be planted in spring, but it does not give exact transplant months. Keep this separate from the seed calendar above: its seed-sowing months are not outdoor seedling dates.
Frost note
Some crops may need frost protection
Green Adelaide notes that Solanaceae, including tomatoes, and Cucurbitaceae, including cucumbers, zucchini and pumpkins, may need frost protection early in the season, August–September. The source does not give a last-frost date.
Seasonal guidance
Use these as seasonal cues, not extra month dates
Preventive Health SA advises establishing kale and silverbeet before summer heat. It describes carrots, potatoes and beetroot as autumn-to-spring crops, not summer crops. These are season-based notes, not a local month-by-month calendar.
Water and heat care
Prepare for 40°C-plus days
On days forecast to top 40°C, prepare before the heat arrives. Green Adelaide says plants prefer some shade when temperatures are forecast above 36°C. If a heatwave is expected, vegetables may do better for a week under cover than in full sun, ideally with morning sun and protection from hot afternoon heat. During heatwaves, it may help to water early in the morning and again in the early evening, rather than in the middle of the day. Mulch or pea straw helps keep soil moist; in pots, group containers so larger ones can shield smaller ones. This is heat-care guidance, not a change to the sowing windows.
Sources and scope
Where the dates and advice come from
Each link supports the part of the guide where it appears. The Adelaide calendar supplies seed-sowing windows; the online list, seasonal notes and water advice remain separate so their methods and scope are clear.
Green Adelaide, Food gardening: what to plant when
Green Adelaide's online summary supplies the separate “Plant any time” group. It does not state whether those entries are for seed or seedlings.
Green Adelaide, What to plant when in Adelaide
The chart is headed “Months to sow seeds” and supplies the eight seed-sowing windows shown here. It does not say whether seeds should be sown directly or under cover, and it includes the frost note used on this page.
Green Adelaide, 9 vegetables best grown from seed
A broader seed-growing reference. The month windows on this page come from Green Adelaide's Adelaide calendar PDF, not this general article.
Green Adelaide, 9 vegetable and herb seedlings to plant this spring
Green Adelaide says tomato and basil seedlings can be planted in spring, without giving exact transplant months. This note stays separate from the seed-sowing calendar.
Preventive Health SA, Growing fresh and affordable fruit and veg at home
Seasonal guidance says to establish kale and silverbeet before summer heat, and to plant carrots, potatoes and beetroot from autumn to spring rather than in summer.
Green Adelaide, 5 ways to use less water on your food garden
Water-care recommendations used here include keeping soil moist, mulching and shading plants during heatwaves.
Green Adelaide, 5 easiest vegetables to start growing in your garden now
Green Adelaide says plants prefer some shade when temperatures are forecast above 36°C. In a heatwave, vegetables may do better for a week under cover, with morning sun and protection from hot afternoon heat. It also suggests early-morning and early-evening watering, mulch or pea straw, and grouping pots so larger ones shield smaller ones.
