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December Garden Advice and Maintenance
Whitehaven Garden Centre - December Advice

General Gardening

  • Check that greenhouse heaters are working OK
  • Prevent ponds and stand pipes from freezing
  • Prune open-grown apples and pears (but not those trained against walls)
  • Harvest leeks, parsnips, winter cabbage, sprouts and remaining root crops
  • Trees and shrubs can still be planted and transplanted
  • Reduce watering of houseplants
  • Continue to tidy beds and borders, then mulch with compost, well-rotted manure or bark and apply a slow release fertiliser such as bonemeal.
  • Cut back established rose bushes to stop them from snapping in the cold and windy conditions
  • Move delicate pots in greenhouses or wrap in bubble wrap to prevent from freezing
  • Mow if necessary – but only if the grass isn’t wet or frozen, and keep the blades set high

In the Greenhouse

  • Clear greenhouse gutters of autumn leaves
  • Line the inside of the greenhouse with bubble-wrap to keep plants warmer.
  • Do not over water your plants, only water when the compost is dry
  • Check plants regularly for pests and disease i.e. moulds and fungus.
  • Ventilate only on warm days
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