The NutriTower: A Vertical Hydroponic Garden for Small Homes

A NutriTower being tended in a 2014 promotional photo: leafy greens, chard and herbs grow in pots hung on both sides of a central light column.

The NutriTower is a vertical hydroponic garden designed for people who want to grow fresh greens indoors but have almost no floor space. Two Montreal inventors, Bryce Nagels and Douglas Hindle, built it around a simple idea: instead of hanging grow lights above a flat tray, they ran the lights up the middle of a tall, narrow frame and hung the plant pots around them. The result fits in roughly the footprint of a floor lamp and can hold a couple of dozen plants.

If you are wondering whether a tower like this can really feed you through winter, the honest answer is that it can supply a steady harvest of salad, herbs and a few small fruits, not your calories. Below we look at how the system works, what happened to the 2014 crowdfunding campaign, what it costs to run any indoor tower, and what to check before buying one.

What the NutriTower is

The NutriTower started as a Kickstarter project in late 2014. According to CTV News Montreal, it was aimed at apartment dwellers with little natural light. The standard layout held up to about two dozen hanging pots, which could grow lettuce, mint or strawberries, while lights along the central pillar ran for 12 to 24 hours a day. The makers said an expanded layout could carry up to 48 pots on a footprint of under two square feet (about 0.19 m²).

A promotional banner from the 2014 campaign. The makers promised a harvest every day of the year and a design that would sit comfortably in a living room; these were their own claims rather than independent test results.

The frame was made from custom extruded aluminium. A small pump lifted nutrient solution from a reservoir in the base to the top, and gravity carried it back down through the pots. Each pot could be lifted out for harvesting or cleaning, and separate timers controlled the lights and the pump.

How a vertical hydroponic tower works

Hydroponics means growing plants without soil. The roots sit in an inert material such as clay pebbles, rockwool or foam, and receive water with dissolved mineral nutrients: nitrogen, phosphorus, potassium, calcium, magnesium and trace elements. Because the plant does not have to search through soil for food, it can put more energy into leaves and fruit, which is why hydroponic lettuce often grows faster than garden lettuce.

A full NutriTower in a kitchen corner. Notice how the pots hang on short arms around the light column, so every plant is the same short distance from a lamp.

Vertical towers add three ideas to basic hydroponics:

• Recirculation. A pump runs for a few minutes at a time, sends solution to the top, and the excess drains back into the reservoir. Little water is wasted, which is why hydroponics can use far less water than field growing.
• Stacking. Growing upward multiplies the number of plants per square metre of floor.
• Lighting from the inside. Light intensity falls quickly with distance, so placing lamps in the centre, close to every pot, is more efficient than hanging one lamp high above a tall stack.

Indoors, light is the real limiting factor. A sunny windowsill rarely delivers enough light in a northern winter for fruiting plants, so any serious indoor system depends on electric lighting. Most modern towers use LEDs, which produce more light per watt and less heat than the fluorescent tubes common in 2014.

What you can realistically grow

Leafy greens and herbs are the easiest and most rewarding crops: lettuce, spinach, chard, kale, rocket, basil, mint, parsley and coriander. They grow quickly, can be harvested leaf by leaf, and do not need pollination. Strawberries and cherry tomatoes also work, but they need more light, more nutrients and help with pollination, since there are no bees in your living room. Gently shaking the flowers or brushing them with a small paintbrush does the job.

A child inspecting ripening cherry tomatoes on a tower. Fruiting plants are possible indoors, but they take longer and need stronger light than salad greens.

What a tower cannot do is replace a field. A head of lettuce has very few calories, and staples such as potatoes, grains and beans need far more space and light than a home unit can provide. The useful goal is a supply of fresh greens and herbs, especially in winter when supermarket produce has travelled long distances. Calling it "self-sufficiency" overstates what any apartment garden can do.

Running costs and daily care

Before buying any indoor hydroponic tower, compare the whole setup rather than only the footprint. The main ongoing cost is electricity for the lights. A simple way to estimate it is: lamp wattage × hours per day × days × your price per kWh. As an illustration only, a 100-watt lighting system running 16 hours a day uses about 1.6 kWh daily, or close to 50 kWh a month. Check the actual wattage of the model you are considering and your local tariff.

Routine care is modest but real:

• Top up the reservoir every few days and replace the nutrient solution every two to three weeks.
• Check the pH, which for most leafy crops should sit around 5.5 to 6.5; inexpensive test kits make this easy.
• Clean pots, tubes and the pump between crops to prevent algae and root rot.
• Start new seedlings regularly so that harvests overlap instead of arriving all at once.

The accessories offered alongside the tower: seedling starter trays (one with its own lights), foam starter blocks, a submersible pump and clay pellets, sold as hydroton, that support roots in place of soil.

Pests do not vanish indoors. Aphids, fungus gnats and spider mites can arrive on new plants or through open windows, so it helps to inspect leaves and quarantine plants brought in from outside.

The 2014 Kickstarter campaign

In December 2014 the inventors asked backers to pre-order units so they could pay for a first manufacturing run. The goal was to sell about 100 towers. CTV News Montreal reported that the campaign passed its target of more than $32,000 in late December, enough to build about two dozen units for buyers who had already committed, priced at just under $1,000 each.

The "Order now" Kickstarter button used on the campaign page in 2014. The campaign has long since closed, so it is shown here only as part of the product's history.

At the time the project was shared by Collective Evolution and by members of the Valhalla Movement, a Canadian group interested in earthships and off-grid living, who said they planned to use a tower in their own build. We have not been able to confirm how many units were eventually delivered or whether the original design is still sold, so check the maker's current website and recent customer reviews before relying on any older description.

Questions to ask before you buy an indoor tower

• Light output and wattage: how much light reaches each pot, and what will it cost to run?
• Noise: pumps and fans can be audible in a small flat.
• Reservoir size: a larger tank means fewer top-ups but more weight.
• Spare parts: can you buy pumps, pots and lamps easily if the company changes its range?
• Crop goals: greens and herbs suit almost any unit; fruiting plants need stronger lighting.

Vertical farming has grown into a large industry since 2014, and countertop and floor-standing kits are now widely available. The NutriTower was an early example of a design that many later products copied: lights in the centre, plants around the outside, water recirculating from a base tank. Its story is a reminder that a good indoor garden is less about a compact shape and more about light, routine care and realistic expectations.

Sources: CTV News Montreal: Hydroponic gardening coming to pint-sized spaces; Collective Evolution (2014 feature); Valhalla Movement.

For a different setting for growing food indoors, explore Inside Paris’s Underground Mushroom Farm.

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