Un cadre froid (également connu sous le nom de foyer) est un moyen de faire pousser de jeunes plantes pendant la fin froide de l'hiver ou le début du printemps, en les gardant au chaud pour leur donner une chance de survivre et de prospérer malgré le froid. Un cadre froid se compose d'une boîte en bois avec un couvercle en verre qui peut être ouvert et fermé facilement. Le cadre froid agit comme une mini serre qui peut être ouverte pour profiter de la chaleur du jour et fermée pour conserver la chaleur la nuit.
Contenu
Création d'une
Il s'agit souvent d'un excellent projet de réutilisation, dans la mesure où les cadres de fenêtre ou les portes vitrées indésirables avec le verre (ou les feuilles de plastique plexiglas/patio) encore intactes peuvent être réutilisés comme partie supérieure du cadre froid. La boîte en bois peut être construite à partir de bois de palette ou d'autres morceaux de bois trouvés autour de la maison, de la ferme ou d'une source de récupération. Si vous ne trouvez pas de fenêtre, un cadre avec du verre ou du plexiglas peut être construit à partir de matériaux anciens ou nouveaux.
If the cold frame is made so that the lid can be removed completely, the box can be turned into a little raised garden bed during the summer months. In this case, simply fill with soil and well-rotted manure and plant the vegetables, flowers, etc., as wished. This provides a dual purpose use for the cold frame that is well worth the effort of creating a removable lid.
+++++ Please feel free to add some patterns, designs, instructions, etc., for building a cold frame from scratch. ++++++++
Using the cold frame
Ensure that the cold frame is placed on a firm and even base.
Fill the base of the cold frame with an appropriate growing medium for the seeds and/or seedlings. Plant the seeds or seedlings.
A cold frame requires the gardener to remember to open and close it, so you may need to set yourself daily reminders on your phone, clock or calendar. During the daytime, provided it is warm, the glassed lid should be opened to allow the warmth in and to let air circulate. At night, the glassed lid should be shut, to retain the warmth and to prevent the plants from getting too cold.
As the season warms up, remove the plants and transplant them to the garden. Or, remove the plants and the lid, refill with suitable soil and well-rotted manure/compost and replant the seedlings to keep growing in the instant raised garden bed. Do not restore the lid though; put it away for the next season of use.
What to grow in a cold frame
Vegetables and flowers are good choices to start in a cold frame.
If you want lettuces, radishes, arugula (rocket), bok choy and other salad style vegetables, or herbs, a cold frame is great for both starting these veggies and herbs and continuing to grow them during a cold season.
Storing the cold frame
A cold frame can be left in place all year round, provided it isn't subjected to too much weathering. If weathering is likely to be a problem, pack it up and store it in a garden shed during winter, then rebuild it when it is needed.
Another alternative is to cover it with a tarpaulin or other suitable covering for over-wintering, to prevent it from being covered in snow or rain directly.
When the cold frame does begin to rot, replace the rotted parts with new pieces of wood.
Walipini
A Walipini is an earth-sheltered cold frame.[1][2][3] It derives its name from the Aymaran languages.[4]
A greenhouse can be built by digging a hole in the ground and covering it with glass. This takes advantage of the heat stored in the earth during the cold season (warmth in winter, cooling in summer). It is an adaptation of the idea of passive annual heat storage (PAHS) to the greenhouse. Therefore very suitable for climates with cold winters. At the depth of several meters, there is very little seasonal variation in temperature. The earth around the greenhouse structure has large thermal mass.
- ↑ "Walipini Construction (The Underground Greenhouse)" (PDF). The-meal.net. Retrieved 7 December 2014.
- ↑ "Pit Greenhouses". Inspirationgreen.com. Retrieved 7 December 2014.
- ↑ "Le Walipini modifié de Rob" . PermacultureNews.org . Récupéré le 7 décembre 2014 .
- ↑ "Construire une serre souterraine de 300 $ pour le jardinage toute l'année (Vidéo)" . TreeHugger . Récupéré le 7 décembre 2014 .