If the cold frame is tight, open slightly on warm sunny days. Cold frames allow seedlings up to an 8 week start when planted in late winter. I chose the January 1 st date as a good test for ground warmth and germination. Growth was slow.īy mid March the greens were ready to eat. One winter, on January 1 st, I planted lettuce seeds and placed a lidless storage container top side down over it, securing it with a rock. Secondly, securing the polytunnel is important to keep it from blowing off in the midst of a winter gale this can happen! Cloche-like devices can be used to similar effect as the poly tunnel. That's one reason I only concern myself with securing, nearly airtight, the poly tunnel during windy snowstorms and blizzards. Mother Earth News - MOTHER EARTH NEWS COMPLETE SET OF DIGITAL E-BOOKS.MOTHER EARTH NEWS COMPLETE SET OF DIGITAL E-BOOKS.
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