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Living wall installation and maintenance: technical guide for professionals
MOUNTING, WATERING
AND MAINTENANCE
Installation and maintenance of a green wall: a technical guide for professionals
A living wall is, by definition, an evolving plant system. Its long-term success depends as much on the quality of the initial installation as on the rigour of ongoing maintenance.
This page brings together the essential technical data for landscape contractors and professional installers working with the Vertiss Plus system: installation rates, seasonal maintenance protocol, automated irrigation management and lighting requirements for indoor installations.
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Vertiss Plus module installation: rates and installation time
The Vertiss Plus system is designed for rapid on-site installation. The average installation time — metallic structure, planting and module fixing — is 10 sq.m per day for 2 people, for heights between 1 and 4 metres.
Installation data
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Structure + module installation: 10 sq.m / day / 2 people (height 1 to 4 m)
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Planting: 1 sq.m = 2 Vertiss Plus modules = 30 minutes
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Irrigation station (primary network): approximately half a day (assembly, programming)
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Drip lines (secondary network): a few minutes per module
Module pre-cultivation
Vertiss Plus modules can be pre-cultivated prior to installation, so that the living wall is fully covered with established plants from the moment of project handover.
This option is particularly valued for hotel projects, reception areas and commercial spaces where immediate visual impact is an important requirement for the client.
MOUNTING
10 sqm / day / 2 persons
(Height 1 - 4 M)
PLANTING
1 sqm / 2 Vertiss Plus
= 30 minutes
IRRIGATION
Technical room : 1/2 day
2. Living wall maintenance: seasonal protocol
A living plant wall requires regular professional monitoring.
This is the essential condition for maintaining plant density, preventing irrigation failures and guaranteeing the longevity of the installation over time.
The Vertiss maintenance protocol requires a minimum of one to two visits per month, to be adapted according to the season and local climatic conditions.
Recommended annual protocol
Preparing for winter :
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Drain and frost-protect the irrigation circuit
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Trim and clean vegetation
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Check structure and fixings
Winter (monthly visits):
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Monitor growing medium moisture levels
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Manually trigger irrigation if required
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General plant health check
End of winter:
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Recommission the irrigation system
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Trim and clean plants
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Replace any failing plants if necessary
Growing season — April to October (monthly visits):
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Check irrigation system is functioning correctly
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Monitor growing medium moisture and adjust irrigation frequency
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Apply plant treatments if required
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General plant health monitoring
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Full structure inspection
Vidéo réalisée par le paysagiste Boymann (Allemagne)
3. Automated irrigation: drip fertigation system
Irrigation is the primary driver of plant growth and the most critical factor in the long-term management of a living wall. Manual watering is not recommended as it is difficult to control precisely: automated drip fertigation is the reference solution for ensuring uniform growing medium moisture and minimising run-off at the base of the wall.
Irrigation network architecture
The system operates on two separate networks. The primary network forms the technical hub of the living wall: it integrates the programmer, solenoid valves, filters and nutrient dosing pump. It automatically controls irrigation frequency, duration and nutrient dosing.
The secondary network provides localised micro-irrigation to each module via drip lines. Lines are positioned along the upper part of each module, spaced approximately every 80 cm. Water then spreads through the entire growing medium by capillary action and gravity.
Programming and water consumption
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Average consumption: 5 to 15 litres / week / sq.m depending on season — approximately 200 to 500 litres / year / sq.m
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Recommended irrigation: short (2 to 5 minutes) and frequent (1 to 5 times per day depending on season and region)
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This programming allows water to move slowly through the module, be absorbed effectively by the growing medium, and minimises wastage and run-off at the base of the wall
Proper watering is key to a beautiful green wall. Water is the primary factor in vegetative growth.
4. Lighting for indoor living walls: thresholds and recommendations
For any indoor living wall installation, light intensity is a critical parameter.
The minimum recommended light level is 1,500 lux for shade and semi-shade species. Below this threshold, photosynthesis cannot function correctly, leading to progressive plant decline.
A lighting assessment is recommended for every indoor project prior to installation. If available natural light is insufficient, supplementary artificial lighting must be specified and integrated into the project from the design stage. Both insufficient and excessive light can be harmful to indoor plants: lighting optimisation is therefore a core element of the ongoing technical management of any indoor living wall.
