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Cairns, QLD

What to plant in Cairns in September.

Cairns has broadly tropical conditions: high humidity, heavy summer rain and a warm dry season. These suggestions are a practical starting point for the month.

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27broad choices
Tropicalclimate
Septemberplanting month

Your starting list

Planting ideas for September

Grow to Eat

Grow for Beauty

SunflowerSow direct • Full sun • Flowers in 10–14 weeksMarigoldSow or transplant • Full sun • Flowers in 8–12 weeksZinniaSow direct • Full sun • Flowers in 8–12 weeksCosmosSow direct • Full sun • Flowers in 8–12 weeksPetuniaPlant seedlings • Full sun • Flowers in 8–10 weeksDahliaPlant tubers • Full sun • Flowers in summer–autumnGladiolusPlant corms • Full sun • Flowers in 12–16 weeksBegoniaPlant tubers • Part shade • Flowers in 10–14 weeksImpatiensPlant seedlings • Part shade • Flowers in 8–12 weeksBougainvilleaPlant a vine • Full sun • Flowers in 1–2 seasonsHibiscusPlant a young shrub • Full sun • Flowers in 1–2 seasonsAgapanthusPlant divisions • Full sun • Flowers in 1–2 seasonsBird of paradisePlant divisions • Full or part sun • Flowers after 1–2 yearsColeusPlant seedlings • Part shade • Colour within 6–10 weeks
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Before you plant

A quick September garden check

  1. Check the forecast.Delay tender planting during frost, heatwaves, waterlogged weather or damaging wind.
  2. Prepare the soil.Remove weeds, check drainage and add mature compost where the plant benefits from it.
  3. Read the label.Exact varieties can need different depth, spacing, pollination or pruning.
  4. Water the root zone.Water new plants thoroughly and keep moisture consistent while roots establish.

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