Plants for growing through winter in a greenhouse
What will grow in a greenhouse in Winter?
Plants for winter are; Winter Lettuce, Potatoes, Spinach, kale, cabbage, Bok choy, Chinese cabbage, Onions, Shallots, Peas, Broad beans, Garlic and Spinach. These plants can all be grown in an unheated greenhouse through winter, providing you follow a few guidelines;
Guidelines.
- Get the timing right and plant them before the days get too short and before it gets too cold.
- Planting now means you will be ahead of the game in springtime.
- Bear in mind, unless you have some form of lighting in your greenhouse very little actually grows in the winter months of December and January. Things just tick over and then grow like mad when the days start to lengthen again, so don't panic, turn up the heat or kick the greenhouse, it is nature's way of giving you time for Christmas shopping.
- More specific information further down this page)
Want some cheap ways to heat-up a greenhouse in Winter without using electricity go to my page heating a greenhouse in Winter
Information and varieties of plants for over-wintering
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Winter Lettuce. If you like salads there are at least a couple of winter hardy lettuce that will grow in a cold greenhouse or poly-tunnel through the winter. Arctic King is one variety. Amazon gardening has loads of suggestions for all sorts of vegetables, seeds and plants that will grow in a cold greenhouse or poly-tunnel through the winter. Click on amazon pic's for more information.
Kwiek and Little Gem varieties of lettuce can be sown in your greenhouse in October and then planted into seed trays when big enough and In December into pots.
No need to wait until the lettuce plants have formed hearts, start harvesting when the leaves are big enough to add to salad. Leave some lettuce plants to grow on and form hearts then cut as required. Tasty lettuces when shop supplies are limited and expensive!
The containers will take up quite a bit of greenhouse floor space, but the taste of early homegrown organic potatoes make it worth while. Providing the weather isn't frosty. If you need space in the greenhouse the potatoes can be moved out of the greenhouse into the garden during the day and back into the greenhouse at night.
Your first potatoes should be ready to harvest in May. Search around with your bare hands, pull out the biggest and leave the others to grow on.
Spinach, kale, cabbage, Bok choy, Chinese cabbage, and most root crops. Leeks, beets, carrots, turnips, parsnips, radishes, and rutabagas and some varieties of onion can be grown through winter in a greenhouse and you will get a much earlier crop than if you had waited until spring.
Steve gave us this useful tip for starting of early peas in a greenhouse, using a length of guttering.
He drilled holes for drainage, lined the guttering with a sheet of news paper. Filled it with compost, then planted the peas and left the whole lot in the greenhouse until the peas had lovely long shoots. Then, dug a small trench and slid the contents of the guttering straight into the ground. Result. Fantastic strong plants.
Broad beans, Autumn sown broad beans will be ready a month earlier than those sown in April, and they won't get black fly. Good autumn varieties are Aquadulce Claudia (AGM) and Super Aquadulce.
Garlic, Garlic is easy to grow. Plant the cloves individually to a depth of 2.5in deep on light soils and about one inch on heavy soils, about one foot apart each way. Solent Wight ,stores well and has large cloves, Provincehas huge cloves.
Spinach,
Other Greenhouse related pages on my site
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