21 Nov

Garden diary - November and December

Published: 2016-11-21


  • It should be safe to plant frosttender vegetables – chillies, cucumbers, zucchini, eggplants, kumara, peppers, dwarf and runner beans, marrows, melons, pumpkins and sweet corn.
  • Sow beds of brussels sprouts, cabbages, cauliflowers, leeks and broccoli.
  • Start harvesting asparagus, beetroot, broad beans, cabbages, cauliflowers, lettuces, radishes, spring onions, spinach and turnips.
  • Continue to mound up potatoes.
  • Holes in your potato foliage could be signs of attack by the potato tuber moth. Water well to discourage them.
  • To encourage tomato flower set, spray with a mixture of 1 part sugar to 9 parts water. Remove side shoots, and tie plants securely to stakes.


  • December is a month of rapid growth, so pay particular attention to watering, weeding and feeding.
  • It’s best to water the garden deeply and infrequently (rather than little and often), so plants learn to dig deep for moisture. Continue mulching to keep soil moisture levels up.
  • Continue to mound up soil around spuds and you should have a good feed of new potatoes come Christmas Day.
  • Succession plantings of all summer veges can take place for harvest right through to autumn.
  • Feed tomatoes with fertiliser and water regularly. Remove laterals (side growths) while they grow, to encourage fruit growth. Make sure they’re firmly staked.