What to plant:
Pretty much anything goes in Summer.  Growth is prolific.
Salad Vegetables: Asian Greens, Lettuce, Endive, Salad Greens, Silver Beet
Root Vegetables: Beetroot, Carrots, Parsnips 
Brassicas: Broccoli, Cabbage, Cauliflower, Mustard
Mediterranean Vegetables: Capsicum, Chilli, Tomatoes, Eggplants
Gourds and assorted: Pumpkins, Squash, Zucchini, Corn, Cucumber
What to harvest:
  • Lettuce, Asian Greens
  • Tomatoes, Zucchinis and Eggplants
  • Capsicum & Chillies (late Summer)
  • Potatoes (early Summer)
  • Berries, Stone Fruit and Figs
Jobs to do:
  • Weeding
  • Fertilise plants
  • Dead head flowers
  • Prune and shape hedge plants
  • Fertilise citrus (late Summer)
  • Clean BBQ
  • Clean outdoor furniture
  • Tidy old bulbs (do not cut off dead growth – it feeds the bulbs – just tie it up or hide amongst other plants)
Potential Problems:
Mould and mildew Mildew and mould can be a problem when there are weeks of humidity and rain. This can really impact on peas, zucchinis and in some cases berries.  Regularly trim off the affected foliage and consider spraying with white oil.

Extreme dry and heat. This is likely to occur in January and early February and no amount of watering seems to help.  I have heard of people setting up umbrellas and shade cloth during really hot spells to protect their precious plants.  I suggest using a drip filter system and watering either late at night or early in the morning (taking into account local watering times and restrictions.)

Humidity. Your lettuce and salad greens will bolt to seed with humid, hot and rainy weather.  Sometimes I just let them go and self seed the bed.