27/02/2026
For March in South Australia’s warm‑temperate zone, the best vegetable seeds to sow are cool‑season staples that thrive as the heat drops and autumn moisture returns. The month is a sweet spot for brassicas, roots, leafy greens, and aromatic herbs.
🥕 Best veg to sow in March (South Australia)
These are all listed as suitable for March in the Tatiara warm‑temperate climate.
- Beetroot — reliable, quick, and happy in cooling soil.
- Broccoli — ideal time to get autumn–winter heads forming.
- Brussels sprouts — long growers; March sowing sets them up for winter harvest.
- Carrot — steady germinator as temps ease.
- Cauliflower — thrives with cooler nights.
- Celery — slow starter but perfect timing now.
- Chives — hardy and easy.
- Coriander — loves the cooler weather; less likely to bolt.
- Dill — similar to coriander; great autumn herb.
- Fennel — bulbs form well in autumn.
- Garlic — March is prime planting time in SA.
- Kale — bulletproof autumn green.
- Mint — plant with containment!
- Pak choi / Bok choy — fast-growing and ideal for autumn.
- Parsnip — long season root crop; sow now for winter.
- Radicchio — great colour and cold tolerance.
- Silverbeet — dependable year-rounder.
- Spinach — true spinach loves the cooler weather.
- Turnip — quick and easy.
🌱 How to choose what to plant
Different crops suit different goals:
- Fast harvest (3–6 weeks): radish, pak choi, spinach, coriander, dill.
- Reliable autumn–winter staples: broccoli, cauliflower, kale, silverbeet, carrots, beetroot.
- Long-season winter crops: garlic, parsnip, Brussels sprouts, fennel.
- Herb refresh: chives, mint, coriander, dill.
🌦️ South Australia–specific tips for March
- Soil is still warm, so germination is quick.
- Days shorten, so choose varieties labelled “autumn/winter” for brassicas.
- Watch for cabbage moth while temps remain warm — netting helps.
- Keep seedlings moist; March can still throw hot spells.
