Simple functionality - different model variants
The cold frame works like a miniature greenhouse. So that seedlings and plants can flourish here from February / March, sun rays and a special filling ensure sufficient warmth, which is held in place by a movable cover. Those who only rely on the sun's rays as a heat source can use side panels and covers made of transparent material, such as double-walled sheets. If you integrate natural heating into the structure, the side parts can be made of wood. The following models are suitable for cold frames:
- Wooden frame with disused windows as a cover
- Frame and cover made of glass or plastic
- Aluminum box with plastic lid
- Cold frame tunnel made of weatherproof, transparent film
also read
- How to build a cold frame from pallets - DIY instructions
- How to properly fill a cold frame - instructions for practitioners
- How to build the cover for a cold frame yourself
If you correctly lay out your cold frame in a box shape, use a model with a slight incline towards the south. This means that your plants can still benefit from the light even when the sun is low. In addition, rain runs off more quickly. For good ventilation it is important that you can open the lid. Currentless ventilation openers automatically provide fresh air when a certain temperature level is exceeded.
Flexible dimensions - you should pay attention to this with the width
The structure of a cold frame depends on the dimensions of the space available. The more space is available, the longer the box or Polytunnels(€ 5.80 at Amazon *) be. The width, on the other hand, should be limited to a maximum of 100 cm so that you can easily reach all plants from the edge.
The heart of the structure - filling as natural heating
A cold frame acts as a cold box when the sun acts as a heat source. By integrating an ingenious filling as natural heating into the structure, you can optimize your cold frame into a warm frame with an extra long service life for up to 365 days. Before setting up the frame construction in the garden, prepare the location as follows:
- Dig a 50 cm deep pit in the sunny location
- Line the sole with vole wire and a 5-10 cm thick layer of leaves
- A 20 cm thick layer of Horse manure fill in
- Above that, a 20 cm thick layer of garden soil, compost, green cuttings and Horn meal give
The decomposition process of the filling generates a heat of 18 to 22 degrees Celsius in the tightly closed cold frame within 8 to 10 days. These are the ideal conditions for the sowing and planting while it is still bitterly cold outdoors.
Tips
Upcyling from Euro pallets(€ 29.99 at Amazon *) is very popular to make furniture or Flower boxes(€ 149.00 at Amazon *) to conjure up. Resourceful home gardeners build a cold frame out of old or new Pallets just yourself. With a little manual skill, the wooden transport documents can be converted and a transparent one cover Mistake.
