March has an average maximum temperature of 24.7°C, and an average minimum temperature of 11.5°C. March has an average rainfall of 55.6mm.

What to do this month

  • With cooler mornings and warm days, autumn has arrived.
  • Autumn is the best time to plant new trees, shrubs, climbers, annuals and perennials as the soil is still warm.
  • Deadhead annuals and perennials. Remove spent annuals.
  • Prune Jasmine and summer Clematis.
  • Perennials can be divided.
  • Fertilise your lawns.
  • Fertilise the entire garden with a good slow release fertiliser.


  • Protect all Brassicas (broccoli, cabbage, cauliflower, Brussels sprouts and kale) from white cabbage moth. A light dusting of vegetable dust every 3 to 4 weeks will do the trick.


  • Asian greens


  • Asian greens
  • Broccoli
  • Cabbage
  • Cauliflower
  • Saffron crocus


  • Artichoke
  • Asian greens
  • Beans, beetroot
  • Cabbage
  • Capsicum
  • Carrot
  • Chilli
  • Chinese cabbage
  • Cucumber
  • Eggplant
  • Leek
  • Lettuce
  • Melon
  • Parsley
  • Parsnip
  • Potato
  • Pumpkin
  • Radish
  • Rhubarb
  • Silver beet
  • Sweet corn
  • Tomato
  • Zucchini

Flowers and bulbs

  • It’s time to plant your sweet peas against a wire frame or support. Some people say that St Patrick’s Day is the day to plant!

Other plants to put in are:

  • Alyssum
  • Calendula
  • Delphinium
  • Poppies
  • Pansies
  • Violas
  • Primulas
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