Garden

What to plant in August

According to where you live in Australia.

Each month we give ideas, tips and planting advice for cooler, warmer, wetter and drier areas in each zone, so ask at your local nursery which zone best matches your conditions. 

Get the key to climate zones here

Flowers 

All zones

Dahlias
Dahlias (Credit: Getty)
  • African marigold
  • Ageratum
  • Alyssum
  • Arctotis
  • Aster
  • Bedding begonia
  • Carnation
  • Dahlia
  • Gazania
  • Honesty
  • Marigold
  • Nasturtium
  • Petunia
  • Portulaca
  • Rudbeckia
  • Torenia
  • Tuberous begonia
  • Verbena
  • Zinnia

Zones 1-3

Asters
Asters (Credit: Getty)

Zones 4-6

Cosmos
Cosmos (Credit: Getty)
  • Carnation
  • Chrysanthemum
  • Cleome
  • Cosmos
  • Delphinium
  • Dianthus
  • Lobelia
  • Petunia
  • Snapdragon
  • Statice

Vegetables

All zones

Radishes
Radishes (Credit: Getty)
  • Asparagus
  • Beans
  • Beetroot
  • Broccoli
  • Cabbage
  • Carrot
  • Lettuce
  • Mustard
  • Onion
  • Parsnip
  • Peas
  • Radish
  • Sweetcorn
  • Tomato
  • Turnip
  • Zucchini

Zones 1-3

Pumpkin
Pumpkin (Credit: Getty)
  • Beans
  • Capsicum
  • Carrot
  • Cucumber
  • Marrow
  • Melon
  • Potato
  • Pumpkin
  • Radish
  • Rhubarb crowns
  • Shallots
  • Squash
  • Sweetcorn
  • Sweet potato
  • Tomato

Zones 4-6

Rhubarb
Rhubarb (Credit: Getty)
  • Artichoke suckers
  • Broccoli
  • Cauliflower
  • Chinese cabbage
  • Cress
  • Endive
  • Kohlrabi
  • Leek
  • Melon
  • Onion
  • Peas
  • Potato
  • Rhubarb

August gardening jobs

  • Wake plants from their winter slumber with a pre-spring fertilising campaign with slow-release fertiliser or pelletissed manure.
  • Check for citrus gall wasp (indicated by ugly swelling on stems), remove with a knife if needed and destroy to stop new infestations.
  • Prep to plant a hedge in early spring by turning over soil for aeration and nutrients.
  • Sow seeds for early tomatoes (in colder areas sow in a tray on a sill indoors).
  • Fertilise lawns towards the end of August as part of their winter recovery.
  • Feed jonquils and daffodils as they finish flowering, but don’t cut back foliage until fully dead.
  • Lightly prune camellias after they have finished flowering.
  • Inspect azaleas for petal blight and spray if necessary.
  • Finish pruning your roses by mid-August and spray for black-spot if it’s been a problem in the past.
  • Check out some of the striking wattles now in flower and make choices for your own garden.

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