Planting guide

What to plant in Brisbane, Australia in September

Humid subtropical Southern Hemisphere September

September is spring in Brisbane's humid subtropical climate. Frost is never much of a factor and the soil is warm, so this is prime time to plant heat-loving summer crops and get them established before the humid, wet summer brings heavy rain and higher pest and fungal pressure.

Plant now

Tomatoes, capsicum, chilli, eggplant

Plant now to crop before peak wet-season humidity makes tomatoes harder to grow.

Cucumber, zucchini, beans, sweetcorn

Direct-sow into warm soil for a fast summer harvest.

Sweet potatoIpomoea batatas

Plant slips now — it loves Brisbane's long, warm season.

Basil and subtropical herbs

Thrive in the warm, humid conditions.

Timing notes

  • Plant summer crops early in spring so they can fruit before the humid wet season, when tomatoes especially struggle with fungal disease.
  • Space plants generously for airflow — humidity, not cold, is the main gardening challenge in Brisbane.
  • Mulch and mound beds to cope with heavy summer downpours and keep roots from waterlogging.
← All planting guides