Adelaide, SA · Spring
What to sow, plant, and harvest in Adelaide across September, October, November, the full seasonal list, in the order an almanac would lay it out.
Months
September, October, November
Crops to sow
13
Seedlings to plant
12
Climate
Mediterranean/Temperate
Spring in Adelaide is the prime window for warm-season crops once frost risk passes, tomatoes, beans, zucchini, cucurbits all go in now. The city sits in mediterranean/temperate territory, winter lows around 7°C, summer highs around 33°C, and the spring months (September, October, November) carry a recognisable rhythm that's worth knowing before you plant.
From seed in Adelaide this spring: Tomato, Capsicum, Eggplant, Cucumber, Zucchini, Beans, Basil, Carrot, Beetroot, Spring Onion, Pumpkin, Sweet Corn, Dill. That's a long list, which is the upside of Adelaide's mediterranean/temperate conditions in spring, direct-sowing into raised beds gives you the best germination and the strongest root systems for the season ahead.
As seedlings in Adelaide this spring: Tomato seedlings, Broccoli (last), Lettuce, Silverbeet, Onion, Tomato, Capsicum, Eggplant, Zucchini, Cucumber, Sweet Potato, Pumpkin. Buying seedlings from a local nursery shortens the calendar by 4-8 weeks compared to seed, which matters most in Adelaide's shoulder windows.
Harvesting in Adelaide this spring: Peas, Broad Beans, Broccoli, Cauliflower, Leek, Spinach, Kale, Broad Beans (last), Broccoli (side shoots), Lettuce, Radish, Silverbeet, Spring Onion, Garlic (early varieties), Peas (last). The harvest peak runs across the season's middle month, when warm-season crops planted in the previous shoulder are coming into full production.
Adelaide's extreme summer heatwaves (40°C+) can kill vegetable plants within hours, keep shadecloth on hand and water deeply the day before forecast heatwaves. The Adelaide Hills is its own microclimate, if you garden above 400m, treat your conditions more like Canberra and expect frosts from June to September. If you want the printable, see the full Adelaide planting calendar.
Adelaide's spring suits raised beds for the simple reason that raised beds warm faster than ground-level soil, giving germination a head start and pushing transplants ahead by a week or two, which compounds across a 12-week growing window. The raised bed calculator sizes the bed; the companion planting guide fills it out.
For the month-by-month read, see the full Adelaide planting calendar. To convert this season's list into an exact bed plan for your household, Plant Planner reads your postcode, your bed dimensions, and your family size and does the maths.
Sow from seed
Plant as seedlings
Harvest
In Adelaide's spring (September, October, November), you can sow from seed: Tomato, Capsicum, Eggplant, Cucumber, Zucchini, Beans, Basil, Carrot, Beetroot, Spring Onion, Pumpkin, Sweet Corn. From seedlings: Tomato seedlings, Broccoli (last), Lettuce, Silverbeet, Onion, Tomato, Capsicum, Eggplant, Zucchini, Cucumber.
Across Adelaide's spring months, you'll be harvesting: Peas, Broad Beans, Broccoli, Cauliflower, Leek, Spinach, Kale, Broad Beans (last), Broccoli (side shoots), Lettuce, Radish, Silverbeet, Spring Onion, Garlic (early varieties).
The strongest spring performer in Adelaide depends on what you already grow, but high-yield, low-effort choices include Tomato seedlings, Broccoli (last), Lettuce. The full crop-by-crop guides are linked above.
Frost risk in Adelaide: Frost-free (plains), light frosts July-August in Hills. Have frost cloth on hand for tender seedlings during the colder weeks; raised beds give you a 1-2°C buffer over ground-level beds.
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