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Home | Gardening Calendar | December
You can download the Monthly Checklist file here. (PDF Viewer required)
 
 
Monthly Checklist  
DECEMBER
 
KITCHEN GARDEN FLOWER GARDEN
  • This is a month of rapid growth. Pay particular attention to watering, weeding, feeding and spraying.
     
  • Sow seeds directly into the soil, beans, beetroot, carrots, parsnip, swedes, turnips, radish, lettuce, spinach, silverbeet and sweetcorn. Make successive sowings every two weeks.
  • Plant seedlings of lettuce, broccoli, cabbage, cauliflower, spinach, tomato, sweetcorn, beetroot, pumpkin, courgette, capsicum, eggplant, melon, cucumber and gherkin.
  • Protect plants from caterpillars with Derris Dust.
  • If whitefly is a problem spray with Confidor.
  • Courgettes and cucumbers can be protected from powdery mildew with Champ DP
  • Feed tomatoes at least once a week with a fast acting liquid feed such as Phostrogen. Remove laterals (side growths) on tall tomato varieties as they grow and ensure they are firmly staked. Water regularly.
  • Feed fruit trees for bumper crops later. Water well to prevent fruit drop.
  • Protect pip and stone fruit with Champ DP or Fungus Fighter to prevent fungus diseases.
  • Protect citrus with Champ DP to prevent verrucosis and leaf curl.
  • Apply a mulch of compost around vegetable
    plants to conserve soil moisture.

LAWNS

  • Raise the lawn mower up a level for summer season. If cut too short, lawns will
    dry out more quickly.
  • Water in dry weather and apply fast acting
    lawn food such as Palmers Lawn Fertiliser or
    Scotts Lawn Builder to keep lawns fresh and
    green. Water in well after application.



 

  • Sow seeds of ageratum, alyssum, aster, celosia, cosmos, cyclamen, gerbera, nasturtium, petunia, phlox, portulaca, rudbeckia, salpiglossis, sunflowers, verbena, viscaria and zinnia. 
  • Plant seedlings of alyssum, aster, chrysanthemum, cosmos, dahlia, dianthus, gypsophila, nasturtium, impatiens, marigolds, petunia, phlox, portulaca, salvia, verbena, viscaria and zinnia. 
  • Roses and perennials can still be planted. Keep new plantings well watered. 
  • Lift spring flowering bulbs once the leaves have died down completely. Store in a cool dry place. 
  • Mulch garden shrubs with compost or peat to conserve moisture and protect roots from hot sun - especially rhododendrons, azaleas and camellias. 
  • Remove spent flowers from roses to encourage new blooms. Feed with Palmers Rose Fertiliser and spray with Super Shield to control pests and diseases. 
  • Water each evening or early morning, especially plants in containers which will dry out quickly in hot or windy weather. 

    HOUSEPLANTS AND OUTDOOR CONTAINERS 
  • Fill pots with flowering annuals such as petunias, marigolds, phlox or impatiens for Christmas and summer display. 
  • Keep up watering in warm weather. Installation of an inground watering system saves time and makes watering easy. 
  • Use Waterwise Water Storage Crystals to help potted plants survive infrequent watering while you’re away on holiday. This can be added without necessarily repotting the plants.