Yesterday morning started very cold and the ground was frozen solid. I wasn't expecting to do anything in the garden at all, but after lunch I walked down to the allotment to check that all was ok. The sun was out and the area along the bottom of the roadside hedge had defrosted, so I pulled out a few speedwell and goosegrass seedlings.
I was going to leave it at that - the broccoli and brokali in the tunnel were covered in ice and clearly not in a fit state to harvest, and dinner was coming from the buckets of carrots and leeks that have been in the garage. Something made me try the soil around the leeks to see if it was frozen. It was slightly crusty but still soft, so I decided to harvest a leek. These have not been in the sun and there was ice on the leaves, so I can only think that the combination of the net over the tunnel and the leaves covering the soil has been enough to stop the soil from freezing even when the air temperature dropped to around -4. I was very surprised.
I was going to leave it at that - the broccoli and brokali in the tunnel were covered in ice and clearly not in a fit state to harvest, and dinner was coming from the buckets of carrots and leeks that have been in the garage. Something made me try the soil around the leeks to see if it was frozen. It was slightly crusty but still soft, so I decided to harvest a leek. These have not been in the sun and there was ice on the leaves, so I can only think that the combination of the net over the tunnel and the leaves covering the soil has been enough to stop the soil from freezing even when the air temperature dropped to around -4. I was very surprised.
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