Dedicated to living walls
Cities like forests
Optimise your green assets and workflow, from a single intelligent platform.
* Up to 82% less water, measured on our green-roof installation; up to 59% on green walls.
Zone 4 · VWC · last 48 h
Why it matters
Treat green infrastructure like the asset it is
A green wall isn't a garden bed stood on its end. A green roof isn't a backyard with a view. But most irrigation tech treats them like they are.
The technology keeping plants alive was mostly built for agriculture or backyard gardens, then adapted upward – onto facades, into atriums, across rooftops thirty storeys up. Living infrastructure doesn't behave like a field: water moves differently down a wall, and a wicking planter on a high floor shares almost nothing with a row crop except the plant in it.
Cloud Grow was built for these spaces specifically – shaped around what living infrastructure actually needs. Every zone watched live, so you choose when to visit, and problems surface before they show at the leaf.
Our cities are getting greener every year. What keeps it all alive should be built for the job, not borrowed from another one.
See how it works
In their words
“This technology lets us push the boundaries of what's possible. It puts GreenAir in the driver's seat.”
“Cloud Grow turns the hidden moisture patterns in our wicking baskets into data we use to set maintenance and refill schedules, so we only visit when it is needed.”
“We go away and know the garden is in good hands. No instructions for the neighbours, no worrying about the weather – it just looks after itself.”
The challenge
A timer can only do so much
Substrates and planting have advanced enormously. The way we water living infrastructure hasn't – most walls, roofs and gardens still run on a timer set for the worst case. On a 40°C day it isn't enough; the morning after rain, the timer runs anyway.
A rain sensor only knows that it's raining – not whether the soil around the roots is actually wet. A passing shower can trip it and hold off watering while the root zone stays dry.
The platform
Watering driven by what the plants need
Cloud Grow reads the plants' needs – moisture, temperature and conductivity right in the root zone, plus the weather overhead – and waters each zone only when it needs it, holding off when rain is on the way. Everything that drives those decisions is visible on the Cloud Grow Platform – Castellatus – so you can see how every site is tracking without being on it.
Castellatus turns live readings into clear actions: which zone needs attention, what kind, and how urgent. A built-in safety layer prevents flooding from a stuck valve, and if connectivity drops, each unit keeps making watering decisions on its own.
Why Cloud Grow
Five reasons to choose Cloud Grow
Know before your plants do
Moisture, temperature and conductivity tracked live in the root zone, with a real-time alert the moment something moves out of range. Fewer plants lost, fewer call-outs.
Ask Nimbus: how do you spot problems before they show? →
Expand your plant palette
Precise moisture control at each zone opens the door to species that would otherwise fail. Increase plant diversity and design possibilities across your projects.
Ask Nimbus: which species become viable with precision moisture? →
Retrofit existing living assets
Retrofit Cloud Grow technology into existing installations without structural changes. Bring ageing living walls back to peak performance.
Ask Nimbus: can you retrofit into an existing living wall? →
Maximise sustainability credits
Automated data logging for Green Star, NABERS, and WELL certifications. Track water savings and biodiversity metrics with auditable reports.
Ask Nimbus: how do you measure Green Star and NABERS credits? →
Proven in the Australian climate
Running on live installations in full sun, wind and heat – designed, engineered and made in Australia. Real sites, real conditions, real results.
Ask Nimbus: where is Cloud Grow already running? →What we look after
Built for living infrastructure, wherever it grows
Living walls, green roofs, wicking gardens, parks, botanic collections – if it's an intentional planting, our technology can automate its water and watch its health. A few of the places it's working today:
Vertical gardens & green walls
Even moisture from top to bottom, no schedule to adjust – up to 59% less water than a timer, measured on our green walls.
Wicking planters & baskets
See reservoir levels and substrate conditions from anywhere. Visit when a site needs it, not on a rotation – monitor only, or fully automate.
Green roofs
Needs-driven irrigation that reads the weather and lets the rain do the work – up to 82% less water on our green-roof installation, and a roof that works harder as a stormwater sponge.
Parks & botanic gardens
Diverse plantings across large, public sites – from botanic collections to parkland – on the same needs-based irrigation and live monitoring.
The product suite
Purpose-built for your green assets
The NimbusVerde controller, wireless NimbusNodes, and substrate and water-level sensors – all reporting to the Cloud Grow Platform, Castellatus. Each part has one job; together they give you control over every zone on site.
Live install
Weatherproof enclosure
Australian-engineered
Scaling up
Start with one NimbusVerde. When the project grows, add a NimbusNode per additional wall or planter — each with its own sensors and valve. Up to 12 NimbusNodes per NimbusVerde, up to 600 m line-of-sight between devices.
IP65 weatherproof · Battery: NimbusVerde up to 6 months, NimbusNode up to 12 months · USB-C, with optional solar
Request the full product data sheetHow it works
From sensor to insight
Sensors in the substrate read moisture, temperature and conductivity live and feed the NimbusVerde controller, which drives the water supply and streams everything to the Cloud Grow Platform, Castellatus, for analysis, alerts and automated decisions.
…and more — each zone takes whichever sensors the site needs
Power options
Battery-powered for fully offline operation — keep them topped up however the site allows:
Try a scenario See how Cloud Grow responds — a timer vs watering to need, a hot day, rain coming, a tap left off.
A timer waters on schedule whatever the conditions — spiking and crashing through the optimal band. Cloud Grow waters to need, so substrate moisture holds steady inside it.
A 40°C afternoon. Zone 2 dries faster than usual — NimbusVerde reads it in the root zone and shortens the interval, watering to need. No schedule to change, no site visit.
Castellatus sees 8 mm forecast and holds irrigation — the rain does the work, the roof soaks it up as a stormwater sponge, and the zones stay in range on rainfall alone.
Someone closes a tap on site. The next dispatch expects flow, the meter reads zero, and a "No Water Flow" alert reaches you within minutes. Caught before any damage is done, not weeks later when plants start dying.
Proof on real sites
The numbers, from live installations
By watering only to need and holding off when rain was forecast, the roof ran one stretch of three full weeks on rainfall alone – no irrigation, plants healthy throughout.
Forty independent wicking zones across a two-storey atrium, fully automated – eight months running, zero missed waterings.
Wicking baskets across separate states, watched from one place – so site visits happen when a site actually needs one, not on a rota.
About Cloud Grow
Our roots run deep
Cloud Grow didn't start as a technology company. For more than ten years we've run our own green-infrastructure business – designing, building and maintaining living walls, roofs and gardens, and making our own products to do it properly. Automating irrigation was the one piece the industry still left to timers and guesswork, so we built a platform deserving of the rigours of green infrastructure – and opened it up to everyone who works with living assets.
Every tool we make carries deep domain knowledge – built by a team of engineers, horticultural scientists and designers who maintain living infrastructure themselves.
Get in touch
Let's create cities like forests
Prefer to talk first? Send a message and we'll reply within one business day to arrange a walkthrough of the platform.
connect@cloudgrow.tech