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Lars Lund

08 Sep 2020 14:34

The Greenhouse in March

Check over your greenhouse this month to make sure there has been no damage over winter. If there are any problems, such as a broken pane of glass, now is the time to fix them. 

Photo: Grøn Kommunikation

 

Written by Lars Lund 

Edited by Louise Curley

 

Check over your greenhouse this month to make sure there has been no damage over winter. If there are any problems, such as a broken pane of glass, now is the time to fix them.

If you haven’t done so already, clean the glass on the inside and out so that dust and dirt don’t block any much-needed light. Wipe down the frame on the inside, paying particular attention to any crevices where pests might have holed up over winter. Wash the staging and sweep the floor to remove any plant debris and compost.

Although snow and frost are still possible in March, the days are getting longer and the sun is higher in the sky. While it might still be chilly outside in the garden, it can be surprisingly warm inside the greenhouse on a sunny day, which means it’s possible to start sowing hardy annuals such as celeriac, lettuce, radish, spinach, peas and beetroot.

If you have electricity in your greenhouse and a heated propagator mat you can sow tomatoes, chillies and aubergines into trays with plastic covers over them. If not, start these tender crops off on a bright windowsill.