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Wall Greening

Free-standing walls, wall panels, non load-bearing walls, retaining walls, etc.. do lend themselves to wall greening! The approach to greening will be slightly different than for the classic 'building/facade greening' as such. This begins with the question of whether or not you want to cover the entire wall up to the wall coping, and whether the greenery shall be overhanging, etc.. In this section, we give examples of wall greening, from historical garden walls to modern retaining walls and noise barriers. You can find supplementary information under supporting/retaining wallsrubble (rough stone) masonry, and gabions.

Virginia creeper on a church in Wanen / Sachsen Anhalt

Greening with Self-Climbing Plants

'Self climbers' -- like wild vine and ivy (Boston ivy and English ivy)-- for which climbing aids are unnecessary, are often set on walls. When using these plants, however, it is particularly important that the wall is intact. The cope of the wall must be able to repel and drain all precipitation so that no water can penetrate from above, and all gaps should be closed so that the shoots of the plants mentioned cannot climb their way in. Climbing hydrangea and climbing spindle (winter creeper) are also suitable and less 'aggressive.'

Ivy
Wall partially greened with Ivy, baroque castle garden Delitzsch / Saxony
Evergreen plant, possibly boxwood
Greened natural-stone masonry, probably boxwood
Overhanging ivy
Wall greened with ivy

Green Walls with Trellis Fruit

This is the classic type of wall greening! Many plants love the stored warmth of a protective wall in cooler areas of Central Europe. Already in the Baroque era, wall gardens with "talut walls" (free-standing roofed walls) were specially laid out to produce trellis fruits. Alongside wooden trellises, horizontal wires were used; our system 8010 arose out of such arrangements.

Greening of an old 'talut wall' with grapevines
Greening of an old 'talut wall' with grapevines, Radebeul / Saxony
Trellis vine on an old garden wall, proliferation in spring
Old espalier wall with grapevines in Markwerben / Saale / Saxony-Anhalt
Peach and other trellis fruit on three horizontal wire-cables
Peach and other trellis fruit on three horizontal wire-cables
Vines on horizontal wires, proliferation
Espalier wall with vines on horizontal wires
Old garden with trellis walls
Old orchard with trellis walls similar to an all-sided courtyard greening, Potsdam / Brandenburg
Tomatoes in planting pots
Tomato espalier on a wall
A "green wall" thanks to many vines on wooden trellises
A green wall thanks to many grapevines on wooden trellises, Dornburger Schlösser / Thuringia

Climbing Supports on Walls

Climbing structures are required for almost all plants except for ivy and Boston ivy. The cable systems from FassadenGrün also cover applications on walls, e.g. with the band-like basic forms 8010 and 8020. When necessary, several cable systems (such as 40104020, or those from the 6000 category) are grouped next to each other.

When mounting into natural stone masonry or brick, keep a 20 cm distance from the edges to prevent cracking. For more information, refer to the manual on 'drilling work for climbing aids'. Even in the scope of 25 – 40 cm on such walls, mounting should be done 'expansion-pressure free'--  so, no rawl plugs/dowels. Use mortar instead.

Thicket creeper proliferation, climbing net made of wire netting/mesh.
Thicket creeper on a climbing grid of wire mesh
Clematis on cable system 5050
Wall greening with clematis on wire rope
Clematis on vertical wall protrusions, climbing cables set per system 4010
Climbing support cables for clematis
Fruit on wire rope system 8010
Cable arrangement similar to system 8020
Zigzag cable arrangement
Climbing hydrangea on system similiar to 1020
Edge area with cracked masonry, see text
Crack due to to much pressure of wall mount in wall's edge area
Clematis on system 6060
Wall greening with clematis
Vines in fan form; horizontal steel bars in wall eyelets emphasise the horizontal (horizontal cables near the street space are prone to vandalism because of the ladder effect-- people climbing up).
Green wall

Modern Walls and Materials

Such walls - most made of concrete or precast concrete elements - are ideal for greening. The installation of cable systems into modern walls is easier than with older walls. The risk of cracking the wall at the cope and edges is reduced, as is the risk of climbing plant tendrils crawling into the masonry.

 

High noise barrier walls on the edges of motorways are a prime target for greening. Climbing plants make the unsightly presence of these walls more bearable in the urban landscape. Here it is important to find an optimum combination of requirements. When all factors-- a rapid wall growth coverage, evergreen vegetation growth, minimal maintenance, low water requirement, inexpensive or no climbing aid-- cannot be reconciled, priorities must be set. The planting then complies with these factors. There are even scientific studies and long-term experiments on the greening of sound barriers. Please note the information under supporting walls, as well as dry stone walls and gabion.

Retaining wall made of pre-fab concrete, modified cable system 1060, Heavy Kit
Greened wall with horizontal cables
Evergreen honeysuckle, system 5010; object greening of a concrete wall
Object greening of a wall slab with evergreen honeysuckle
Ivy on cable system 8050
Climbing aid for ivy
Premium version: greening of a 6 m high noise barrier with ivy, cable system 8030
Greening of a noise barrier with ivy
Ivy, cable-system for inserting and interweaving, system 5030
Climbing aid for ivy
Greening with vines; support wall made of “L” elements, system 8010
Noise barrier wall with Boston ivy (self-climbing – see above)
Greened noise barrier
Noise barrier: galvanized wire grid systems are more affordable than cable
Wire grid frame for noise barrier
Support wall made of concrete with a climbing system similar to 5030
Supporting wall of concrete with climbing aid
A noise barrier greened with water-demanding hydrangea on its shady side
Noise barrier fence greened with climbing hydrangea
Greening of a noise barrier with vertical climbing cable and wisteria spindles
Support-wall greening