Clean greenhouse glass
Every year give the outside of your greenhouse a good wash. General grime and algae accumulates on the glazing, reducing the amount of light getting through to plants inside. Use a hose and a stiff brush, slowly spraying and brushing every glazing panel in turn. Choose a warm day to complete the job.
Insulate your greenhouse
Insulate your greenhouse using bubble polythene. Choose grades made especially for greenhouses, as these contain UV stabilisers, which prevent them from breaking down in daylight. Simply pin the polythene to wooden-framed greenhouses. With aluminium models, use special plastic clips that twist into place in the frame. In addition, use sheets of white polystyrene to line the glazing under the staging. This also reflects extra light back into the greenhouse.
Check the health of plants
Check each week that plants being over wintered under glass are healthy and pick off discoloured leaves and dead flowers, which encourage diseases. Make sure plants remain pest free. Water plants more sparingly now conditions are turning cooler and make sure there is good circulation around their foliage, to prevent fungal diseases.
Horticultural.
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