With climbing plants, free-standing, vertical structures in public spaces and in the garden can be transformed into green obelisks. Masts, posts, lampposts, chimneys, etc..-- elements which have no load from above-- become 'living,' so to say. (Note: the greening of supports/columns within a building's structure is dealt with in a separate section.) Self-climbing plants or plants with climbing support are possible here... In the house garden, single poles or interconnected posts/rods (teepee style arrangements, for example) can become a decorative element covered in greenery.
The presence of a climbing plant on a mast or street lamp should not prevent it from fulfilling its function (as a light source or holder of guy-ropes), so the maintenance of climbers on these elements is all the more important.
The wild vine P. Tricuspidata (Virginia creeper) is often used as a self climbing plant for obelisks. It grows well in poor, compacted soil and has another advantage: when it reaches the top, its shoots do not climb horizontal ropes like tension and electrical lines. The vegetation thus remains limited to the mast itself.
The vast majority of climbers will easily climb on a lattice 'tower.' On smooth masts, however, installing a climbing aid is required, which is not easy on concrete masts or tubular steel. Inexpensive wire mesh/netting is therefore often used for greening streets and public spaces. The attached wire mesh/grid (spanning the circumference of the mast) should be run only up to half the height of the post to limit plant growth and to keep any trellis wires or plant growth free of tram lines/electric lines, etc.. It is also possible to limit the height of growth by choosing a less-vigorous/slower-growing plant, such as Menisperomum (see photo).
The firm Thomas Brandmeier offers another alternative for masts-- see suppliers: cable and wire supports fastened with stainless steel products (belts or straps). The adherence of the plants by means of binding material (velcro strip or rubber belts) directly on the support is also possible, as is a greening with self-climbers.
Free-standing chimneys, smoke stacks, ventilation pipes from underground garages, and the like are also elements suitable for greening. All that was described above for 'masts' applies here. You can also find other but similar examples under the section Drainpipes/Downpipes.
There are no limits to your imagination regarding the house garden: trellis posts, pyramids, and obelisks from all possible materials can be created. You can find similar examples under our section on staked vines.