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in Problem solving
My mini greenhouse (metal shelves, plastic cover) seems to get too cold - it went down to -1.1 when we had frost recently. I've been bringing them inside but it is a faff and I want to start off more seeds.
Is the temperature the problem or is it frost that kills them off? Will a fleece cover keep the greenhouse above zero?
Thanks for any info.
You need heat in a GH to keep tender plants. The temperature inside is the same as outside at night and not much different on dull days.
I keep mine inside if they are tender. I have only a mini greenhouse and cold frame. I sow only a limited number of trays of tender plants. You can get away with putting more hardy plants in mini greenhouse (sweet peas, young pansies, I even find carnations do ok).