Wire frameworks are a classic, a million times over approved system for growing fruit, and with their stainless steel cables also essential in the garden. They are suitable for grapevines, raspberries, blackberries or trellis fruit. Here you can learn which variants there are and how you can modify wire frameworks up to your pergola. You can buy two ready-made kits at FassadenGrün under cable system 0050.
Wire frameworks in the vineyard are often more than 50 meters long. Because of the wind, they are exposed to great stresses and tend to be worn out and sag. This may be a visual defect but not a functional one. In professional fruit plant enclosures the wires then usually remain limp or are tightened only once every few years. Short wire frames are usually used with 2 -3 supports in the house garden, for this FassadenGrün offers the cable system 0050, with noble quality steel cable.
Wire frames in vineyards often have 2 wires, so called "Double wires" on each level. In addition, there are clever spacers, which keep the wires apart. All of this is to make fastening the vines to the wire frame easier. This isn't necessary for private use.
The home garden ideal for espalier fruit. For grapes, raspberries and blackberries, but then often only with wire instead of rope and with more than four horizontal wires. Usually also with double wire on each of the buildings floor. The inclined stay cables are optionally available for an additional greening, for example with annual climbing plants.
Wire frame with simple design here rot-proof and tipped stakes are buried or, easier, beaten with a hand hammer (pile driver) into the ground (life span approx. about 10 - 25 years), the wires or ropes hanging slack, because in tensioned wires there are high loads that the want to pull the lateral poles inwards. The stakes should therefore be set at the beginning somewhat obliquely outwards or better, stiffened by one of the three identified options below.
Double trellis for raspberries as an example of wire frameworks of the simplest construction, without any reinforcement or support of the posts and therefore with relatively limp wires. Here are the three additional reinforcements describing the following variants:
- Rigging (standard solution)
- Transverse beam
The sloping stakes are cut on a miter as exactly as possible and screwed in to the final posts of Robinia. Galvanized carriage bolts were employed instead of high-grade steel here in a vineyard. Nevertheless, the aggressive Robinia wood already dissolves the galvanized bolt, recognizably in the discoloration.
Usually the final stakes are braced diagonally to the rear in the soil. In the vineyards, in addition, heavy stones would be buried in the soil and to it a wire fastened, which causes the strengthened support.
The braces are not quite set on top but at approx. 2/3 to the stake height to prevent bending the posts in the direction of the the tension wires or stainless steel cables.
FassadenGrün recommends these ground anchors for a correct tension. It should be screwed into the soil and can take loads of several hundred kilograms,
The system 0050 is also useful when a border garage wall of the neighbor may not be "bored (drilled) into". Used here are darkly glazed wooden posts in metal ground spikes and on top of the post commercial zinc-plated cover caps have been added. The bracing of a the side (in the photo above right) took place with a horizontal stainless steel rope and a level. Another example can be seen below in a photo.
Alternatively to the above described staking out, a second option is possible. Also support poles - again for example- Robinia - dug and set on a stable pressure plate. This can be a stone or a brick. the underground below the pressure plate must be compacted or similarly flattened with a ramrod. When installing the poles, they should lean outwards slightly, due to subsequent settling and shifting a bit inwards after time.
Here one can see the intersection of many cables developing a dense growth braid. In the middle below there is a ground anchor. Eyebolts WH 06060 or low-cost Staples nails KN 04055 are screwed into the frame of the wood. A cable can also be carried by multiple eyelets (3 or 4), so that ultimately less cable clamps are required.
Growing aid made of soft wire-cable over-crossing or threading. Thin stainless steel wires are fundamentally "softer", more flexible for shorter distances, and can be led in forms with corners easier. With harder wire, kinking and threading eye bolts can be difficult as well as threading wires as mentioned above.
FassadenGrün recommends and sells this wire tension adjuster which is put on afterwards without cutting the wire. It is on taut or floppy wires (partly also on wire of 3 mms)-(0.11 inches) and can be finely post stretched any time with an open end spanner (wrench).