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Urban Farming: Four Reasons It Should Flourish Post-Pandemic
Since lockdown, public interest in growing fruit and vegetables at home has soared. Seed packets are flying off shelves and allotment waiting lists are swelling, with one council receiving a 300% increase in applications
Since lockdown, public interest in growing fruit and vegetables at home has soared. Seed packets are flying off shelves and allotment waiting lists are swelling, with one council receiving a 300% increase in applications. Fear of food shortages will have motivated some, but others with more time on their hands at home will have been tempted by the chance to relieve stress doing a wholesome family activity.
The seeds of enthusiasm for home-grown food may have been sown, but sustaining this is essential. Urban farming has much to offer in the wake of the pandemic. It could help communities boost the resilience of their fresh fruit and vegetable supplies, improve the health of residents and help them lead more sustainable lifestyles.
Here are four reasons why food growing should become a perennial feature in our gardens, towns and cities after COVID-19.
1. Growing greener towns and cities
More than half of the global population lives in urban areas, and this is expected to rise to 68% by 2050. For the UK, this is even higher – nine out of 10 people are expected to live in towns and cities by this time.
Weaving food growing into the fabric of urban life could bring greenery and wildlife closer to home. The COVID-19 lockdown helped reawaken interest in growing at home, but one in eight UK households have no access to a garden. Thankfully, the opportunities for urban farming extend beyond these: rooftops, walls – and even underground spaces, such as abandoned tunnels or air raid shelters, offer a range of options for expanding food production in cities while creatively redeveloping the urban environment.
Edible rooftops, walls, and verges can also help reduce flood risk, provide natural cooling for buildings and streets, and help reduce air pollution.
Paris hosts the largest urban rooftop farm in Europe. EPA-EFE/Mohammed Badra
2. Resilient food supplies
Diversifying where and how we grow our food helps spread the risk of disruption to food supplies.
The UK’s reliance on imports has been growing in recent decades. Currently, 84% of fruit and 46% of vegetables consumed in the UK are imported. Brexit and COVID-19 could threaten the steady supply, while the problems created by climate change, such as water scarcity, risk disrupting imports of food from abroad.
Growing fruit and vegetables in towns and cities would help resist these shocks. The harvest labour shortages seen during the pandemic might not have been felt as keenly if urban farms were growing food right where people live.
Vertical and underground crops are more resilient to extreme weather or pests, indoor growing environments are easier to control than those in the field, and temperature and humidity is more stable underground. The high start-up costs and energy bills for this type of farming has meant that indoor farms currently produce a small number of high-value crops, such as leafy greens and herbs. But as the technology matures, the diversity of produce grown indoors will expand.
À lire aussi : Vertical farms offer a bright future for hungry cities
3. Healthier lives
Getting out into nature and gardening can improve your mental health and physical fitness. Our research suggests that getting involved in urban food growing, or just being exposed to it in our daily lives, may also lead to healthier diets.
Urban growers may be driven to make healthier food choices for a whole range of reasons. They have greater access to fresh fruit and vegetables and getting outdoors and into nature can help reduce stress, making people less likely to make unhealthy food choices. Our study suggested that urban food growing can also help change attitudes towards food, so that people place more value in produce that’s sustainable, healthy, and ethically sourced.
4. Healthier ecosystems
While urbanization is regarded as one of the biggest threats to biodiversity, growing food in towns and cities has been shown to boost the abundance and diversity of wildlife, as well as protect their habitats.
A recent study found that community gardens and allotments act as hotspots for pollinating insects, because they tend to contain a diverse range of fruiting and native plants.
Vegetables, like this courgette, can produce flowers for pollinators to enjoy. Natakim/Shutterstock
If designed and implemented properly, allotments and community gardens can really benefit biodiversity. Not only should barren spaces be converted into green and productive plots, it’s also important that there are connections between these environments to help wildlife move between them.
Canals and cycle paths can act as these wildlife corridors. As we begin to diversify the spaces used to grow food, particularly those on our rooftops and underground, an exciting challenge will be finding novel ways of connecting them for wildlife. Green bridges have been shown to help wildlife cross busy roads – perhaps similar crossings could link rooftop gardens.
All these reasons and more should compel us to scale up food production in towns in cities. COVID-19 has given us cause to reevaluate how important local urban green spaces are to us, and what we want from our high streets, parks, and pavements. Judging by the garden center sales, allotment lists, and social media, many people have decided they want more fruit and veggies in those spaces. The opportunity is there for urban planners and developers to consider what bringing farming to urban landscapes could offer.
Lead photo: Joshua Resnick/Shutterstock
Déclaration d’intérêts
Senior Research Associate in Physical Geography, Lancaster University
Does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.
Chair Professor in Sustainability, Lancaster University
Receives funding from the UK Research and Innovation Council and the European Commission. The research described here was funded under the Global Food Security’s ‘Resilience of the UK Food System Programme’, with support from BBSRC, ESRC, NERC, and The Scottish Government (BB/S01425X/1).
Vertical Farming Growth Accelerated by Coronavirus
Vertical farms utilize indoor growing facilities that leverage artificial light, reduce dependency on synthetic chemistry and other crop inputs, optimize water use, and allow food growth in challenging environments with limited arable land
August 14, 2020
The coronavirus pandemic has disrupted the traditional U.S. food and agriculture supply chain, providing a potential growth opportunity for vertical farms.
One recent deal made in the space involves Singapore-based Temasek Holdings Pte and Bayer AG forming a new company called Unfold, which will develop seeds for vertical farms.
Unfold raised $30 million in an initial funding round and entered into an agreement for certain rights to germplasm—the genetic material from which plants grow—from Bayer's vegetable portfolio, according to the two firms. By utilizing the germplasm from vegetable crops, Unfold will focus on developing new seed varieties coupled with agronomic advice tailored for the unique indoor environment of vertical farms.
The venture will focus on innovation in vegetable varieties with the goal of lifting the vertical farming space to the next level of quality, efficiency, and sustainability.
"The investment in Unfold is a great example of a transformative, creative approach to developing agricultural products that meets the needs of consumers, farmers, and the planet by increasing access to fresh fruits and vegetables, supporting sustainably grown, hyperlocal production, and addressing food security challenges faced by growing urban populations,” said Jürgen Eckhardt, MD, head of Leaps by Bayer, which was built to drive fundamental breakthroughs in the fields of health and agriculture through new technologies.
Vertical farms utilize indoor growing facilities that leverage artificial light, reduce dependency on synthetic chemistry and other crop inputs, optimize water use, and allow food growth in challenging environments with limited arable land. They also help crops grow quicker, enabling the reliable growth of fresh, local produce anywhere and at anytime by utilizing less space and fewer natural resources while reducing the need for food logistics and transportation.
In July, vertical farming company Kalera announced it will open a state-of-the-art growing facility in Houston, TX, during spring 2021. The Houston facility will be the largest vertical farming facility in the state.
The new facility was introduced just two months after Kalera revealed it will be opening a new facility in Atlanta in early 2021—an announcement that took place less than two months after it opened its second Orlando, Florida farm. The Houston facility will be even larger than the Atlanta one, which is slated to be the highest production vertical farm in the Southeast.
“In light of the global pandemic and seemingly endless food safety recalls, today, more than ever, consumers are demanding food that is local and that they can trust, said Daniel Malechuk, CEO of Kalera. “Houston presents Kalera with a wonderful market for our produce, as it allows us to not only supply one of the largest cities in America, but also service cities throughout the region including Dallas-Fort Worth, Austin, San Antonio, and New Orleans." Kalera’s lettuce from the Houston farm will be available at retailers and foodservice distributors.
Meanwhile, Greenswell Growers will invest $17 million to open a hydroponic greenhouse in Goochland, VA, reported Richmond Times-Dispatch (Aug. 11). The facility will reportedly produce 28 times more product per acre than a traditional growing operation, and the company expects to yield about 3.7 million-lbs. of leafy greens, which it will distribute throughout the Mid-Atlantic region.
“Greenswell Growers is proud to bring our large-scale indoor growing facility to Goochland where we will provide delicious, safe, and sustainably grown leafy greens that are good for our community," said founder Chuck Metzgar.
In Scotland, indoor agritech specialist ISG completed a deal with vertical farming operator Vertegrow to build the first commercial vertical farm in the country. This is the first move into vertical farming for Vertegrow, diversifying alongside existing agricultural operations, currently growing crops including barley and rye in open fields.
The towers, which are expected to be operational in early 2021, will grow a variety of crops that are intended to service the local food supply chain. Vertegrow will work with a range of local customers including retailers, caterers, restaurateurs, and other local services, to deliver produce all year round.
The four-tower system will be built in Aberdeenshire in Scotland later this year.
To listen to The Food Institute's webinar featuring AeroFarms, a leader in indoor vertical farming, click here.
About the Author
Victoria Campisi
The Food Institute
Victoria writes for the biweekly Food Institute Report, the daily Today in Food updates, and the Foodie Insider daily newsletter for consumers. She graduated from Montclair State University with a B.A. in Journalism and has a background in Nutrition and Food Science. Victoria can be reached through her email at victoria.campisi@foodinstitute.com.