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Gardening Tips for December

With the approach of winter, a more leisurely pace can be taken in the garden.

Flowers

  • If not frosty plant new Rose bushes
  • Cut back the herbaceous border and mulch thickly with composted bark
  • Put slug pellets around treasured plants, especially Alpines and Bulbs in mild weather
  • Protect delicate evergreens from cold winds by using Horticultural Fleece

Fruit 

  • Still time to plant new fruit bushes if the soil is not frozen
  • Still time to use tar oil wash
  • Make sure Apples and Pears are pruned by the end of the month

Vegetables

  • Buy seeds now to ensure full availability
  • Net winter vegetables to keep pigeons away

Lawns 

  • Avoid walking on lawns in frosty weather
  • If puddles stay on the lawn spike with a garden fork to aid drainage and prevent disease
  • Consider having lawn mowers and strimmers serviced

Greenhouse 

  • Clear greenhouse gutters of autumn leaves
  • Wash greenhouse glass inside and outside to allow as much light in as possible
  • Line the inside of the greenhouse with bubblewrap to keep plants warmer
  • Do not water plants too much, water when compost is dry
  • Check plants regularly for pests and disease i.e., moulds and fungus
  • Ventilate on warm days

General Tasks 

  • Sweep up leaves to make compost
  • Take pumps out of ponds and fountains (drain fountains to prevent splitting)
  • Move patio pots to house wall to give support and protection
  • Cut some stems of viburnum x bodnantense to brighten and perfume the house
  • Ensure outside taps are insulated or drained

Plants which are at their best in December

  • Ilex aquifolium and varieties (Hollies)  
  • Prunus autumnalis 'Rosea' (Autumn Cherry) 
  • Mahonia  Pernettya varieties 
  • Erica darleyensis (Heath) 
  • Indoor Cyclamen 
  • Poinsettias    
  • Non-hardy Azaleas (House plant Azaleas)

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