A touch of frost, then …

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You win some and then you lose some, and last night the evil chill of an east wind brought some serious frost damage to the site. We’d taken what we thought were reasonable precautions, and so we weren’t as badly hit as some of our neighbours whose potatoes were scythed off, but nonetheless we lost a few plants; some runner beans whose protective fleece was blown off, some marigolds in the full force of the wind and the growing tips of the grape vine, which will soon regrow, judging by previous mishaps. Being veterans of allotment disappointments we have spares in the greenhouse and in the flat too so we’ll manage – but it’s hard not to reproach yourself for not doing more.

But we knew it was a bad one from the moment we looked out of the window on to the green, where the parked cars had a rime of frost on their roofs and so it wasn’t long before we were up at the allotment assessing the damage. I really hate losing plants – somehow it feels personal. The temperature inside the greenhouse dropped to 2C and by the look of things outside it must have fallen a degree or two below zero outside. My first thought was that I must get cracking on my elevated coldframes over the compost bins – certainly before next winter. The second thought was a bit of a ponder on storing some of the daytime heat we often get this time of the year and releasing it underneath the frames at night. I’ve seen it suggested in permaculture books that stones are goood heat ballast and many years ago I saw an experiment at the Centre for Alternative Technology in Machynlleth in which a recycled household radiator painted black and behind a bit of double glazed window glass was heating water to about 80C on a sunny day.

Charles Dowding blogged earlier today that these days are known in weather lore as the ‘ice nights’. I’ve never heard that expression but I’m certainly going to put them in the diary for next year. I’d say it’s been a funny old year except I think I’ve said that every year for decades!