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Aeroponic Gardening

“Going green doesn’t have to mean sacrificing quality.”

Photos Courtesy of Adobe Stock

Space weed seems like something out of a sci-fi film, but if you thought it was just for fans of fiction, let us welcome you to the wondrous world of aeroponics. In the 1980s, Richard Stoner (we’re not kidding) developed a revolutionary plant-growing technique known as aeroponics. This exciting growing method used only air and a fine mist of nutrients to cultivate crops with extraordinary efficiency. Naturally, NASA took notice when looking to sustain space crews with crops — dirt doesn’t exactly fit into a zero-gravity scenario.

sreetam – stock.adobe.com

Zero Gravity Gardening 

In 1997, NASA partnered with Stoner’s company, AgriHouse, to develop an experiment for the Mir space station. With his years of experience and a patent under his belt, Stoner helped NASA bring space gardening to life, focusing on ways to grow food in zero gravity. According to NASA Spinoff, this research opened the door to aeroponics as a viable, futuristic farming method. But space tomatoes were only the beginning.

Fast forward a few decades and aeroponics has found its way back to Earth. This space-age technology, once reserved for astronauts, is slowly seeping into greenhouses across the globe, offering growers a highly efficient, sustainable way to cultivate their crops. So what exactly is aeroponics, and why does it have the potential to change the way we grow Cannabis?

Magical Mist

Aeroponics ditches the dirt altogether. Instead, plants are suspended with their roots freely dangling in the air rather than directly into soil or water. A nutrient-rich mist is sprayed directly onto those exposed roots. The setup typically includes energy-efficient LEDs, an intricate misting system and a closed-loop environment to recycle water and maximize nutrient efficiency. Unlike traditional soil-based growing or even hydroponics, aeroponics uses significantly less water — up to 98% less than soil growing and 40% less than hydroponics. That’s a massive deal for cultivators in water-strapped areas like California, where every drop counts. But it doesn’t stop there. The roots’ exposure to maximum oxygen means faster growth rates — up to three times faster than soil — and potentially higher yields. This method isn’t just sustainable; it’s a powerhouse for production.

TarikVision – stock.adobe.com

Water Wise

Water conservation is just one of the perks. Aeroponic systems are often fully enclosed, creating a controlled environment that’s practically tailor-made for Cannabis cultivation. Pests? Not here. Diseases? Hardly. By eliminating the risk factors that soil can introduce, growers can skip the pesticide aisle altogether, and that’s a win for everyone (except the chemical companies). And when it comes to nutrients, aeroponics allows growers to control exactly what the plant absorbs. There’s no guessing game in nutrient delivery, which can significantly reduce fertilizer use — by as much as 60%, according to NASA research with BioServe Space Technologies and AgriHouse Inc. In short, aeroponics lets Cannabis cultivators dial in their process to a degree that simply isn’t scientifically possible with traditional methods.

While aeroponics might still seem like the shy new kid on the block, we’ve already seen companies making waves in the Cannabis space with this technology. Enter Aeriz, one of the largest aeroponic Cannabis farms in the U.S. They’re perfecting the art of combining sustainability with high-quality Cannabis production with a focus on reducing environmental impact, all while still churning out award-winning strains. Going green doesn’t have to mean sacrificing quality.

Tech Troubles

Like any new technology, aeroponics comes with its own set of challenges. The cost of setting up an aeroponic system is no joke. An aeroponic system requires high-tech sensors, specialized misting nozzles, and automated controllers to ensure the whole process runs smoothly. While automated systems aren’t new to big production facilities, that initial investment can be steep, and for many smaller growers, it might be unreachable — especially in an industry battling big financial burdens due to continued federal inflexibility. But for those willing to take the plunge, the long-term savings on water, nutrients and labor can offset the startup costs over time.

Then there’s the technical knowledge required. On top of plant biology and nutrient management, aeroponic growers must rely on system engineering skills to keep things running smoothly. This is precision farming, and even a small mistake could lead to big consequences. If the misting system fails for a short time, the plants’ roots can dry out, and the entire crop could be lost. That’s why backup systems and redundancies are crucial to avoiding catastrophe, but they also pose an extra cost.

anatolir – stock.adobe.com

Flavor Fuel

Critics might question whether aeroponic-grown Cannabis can deliver the same flavor and quality as traditional methods, but they’re in for a surprise. Companies like AeroFarms, which focuses on food production in a culinary niche, have demonstrated that this method can actually produce a fuller flavor spectrum, thanks to the strict control over nutrients. But Cannabis consumers will have to be the judge of whether that translates to smoke. 

Shift to Sustainability

For all its challenges, the future of aeroponics in Cannabis still shines bright, if only dimmed a bit by the distance… Technological advancements are slowly but surely making these systems more accessible, with automation, sensors and AI integration taking much of the guesswork out of the equation. As these innovations continue to roll out, aeroponics could become more financially feasible for growers at all levels, not just those with big investors. And then there’s the sustainability factor. In an industry that’s increasingly focused on its environmental footprint, aeroponics offers a way to grow Cannabis more sustainably by conserving water, reducing fertilizer use and eliminating pesticides. For growers who want to do right by the planet, aeroponics is an attractive option.

So, is aeroponics the future of Cannabis cultivation? It’s got all the right ingredients: water efficiency, faster growth, better yields and sustainability. But, like any industry, Cannabis has its traditionalists who might be slower to adopt this space-age technology — and we can’t blame them. From the initial costs and the technical demands to ditching generations of gardening practices passed down, the shift to this tech will certainly be slow. However, the potential to revolutionize cultivation is undeniable. As more companies look to push the boundaries of Cannabis farming, aeroponics might just float to the top, offering a cleaner, greener way to grow the plant we love.

This article was originally published in the October 2024 issue of All Magazines.

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