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Guerrilla gardening

Guerrilla gardening is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Guerrilla gardening rather than just read about it. In short: Guerrilla gardening is the act of gardening – raising food, plants, or flowers – on land that gardeners do not have the legal right to cultivate, such as abandoned sites, neglected public spaces, or private property. It encompasses a diverse range of people and motivations, ranging from gardeners who garden beyond their legal boundaries in defiance of state or local property laws, to gardeners with a deliberate poli…

Guerrilla gardening — main illustration
Guerrilla gardening — illustration

Key takeaways

  • Guerrilla gardening belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Guerrilla gardening to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Guerrilla gardening from memory before moving on to harder problems.

Reference excerpt

Guerrilla gardening is the act of gardening – raising food, plants, or flowers – on land that gardeners do not have the legal right to cultivate, such as abandoned sites, neglected public spaces, or private property. It encompasses a diverse range of people and motivations, ranging from gardeners who garden beyond their legal boundaries in defiance of state or local property laws, to gardeners with a deliberate political purpose, who seek to initiate change by using guerrilla gardening methods as a form of protest or direct action. The term, "guerrilla gardening" blends the Spanish word guerrilla (meaning "little war") with gardening to symbolize grassroots, activist-style tactics used to help nature reclaim public or private space. Guerrilla gardening often challenges social norms concerning land rights, aiming to promote criticism of how public institutions or private land owners manage property, by repurposing or reclaiming land perceived as being neglected or misused by its legal owners. Some gardeners work at night in relative secrecy, in an effort to make the area more useful or attractive, while others garden during the day.

History Two historical examples of gardeners who engaged in guerrilla gardening were the politically radical English Diggers of the 17th century, and the 18th-century American pioneer Johnny Appleseed, who planted apple tree seedlings on unclaimed frontier land as a business venture. The earliest recorded use of the term guerrilla gardening was by Liz Christy and her Green Guerrilla group in 1973 in the Bowery Houston area of New York. They transformed a derelict private lot into a garden. The space is still cared for by volunteers but now enjoys the protection of the city's parks department. Guerrilla gardening takes place in many parts of the world—more than thirty countries are documented and evidence can be found online in numerous guerrilla gardening social networking groups and in the Community pages of GuerrillaGardening.org. The term bewildering has been used as a synonym for guerrilla gardening by Australian gardener Bob Crombie.

Examples

International Sunflower Guerrilla Gardening Day Since 2007, May 1 has been celebrated as an annual International Sunflower Guerrilla Day, in which guerrilla gardeners plant sunflowers in their neighborhoods.

Australia Guerrilla gardening is prominent in Melbourne where most of the inner northern suburbs have community vegetable gardens; land adjoining rail lines has undergone regeneration of the native vegetation, including nature strips. There are a few minor disputes between guerrilla gardeners in Melbourne, with most falling into one of two groups: those concerned most with native planting and those concerned most with communal food growing. However, people with differing opinions still work together without dispute. Growing Forward Kurilpa is a collective of people in Brisbane reclaiming unused space for guerilla gardening. In Melbourne there is a "Guerilla Gardening Narrm" collective that was established in 2023 and has created a large community garden in Coburg called the "Radicle Roots Common", they aim to help spread the idea of localising food and "reclaim the commons" to many other communities. Guerilla Gardening Narrm was largely inspired by Growing Forward Kurilpa. There are small community groups around Australia called "Permablitz" who gather regularly to design and construct suburban vegetable gardens for free, in an effort to educate residents on how to grow their own food and better prepare them if/when food prices become too expensive. Australian Network 10's show Guerrilla Gardeners featured a team of gardeners who make over areas of council-owned property without them knowing.

Canada

Arbutus Greenway, Vancouver, BC In 1902, the Arbutus corridor was a rail line developed by the Canadian Pacific Railway (CPR), connecting Vancouver harbour to the fishing village of Steveston on the South Arm of the Fraser River. In 1905, the BC Electric Company (BCEC) leased and electrified the line to operate interurban passenger rail service between Vancouver and Richmond. The BCEC passenger service was discontinued in 1952, but CPR freight operations continued infrequently until 2001. With the end of rail operations, CPR wanted to redevelop the 17 hectare corridor for residential and commercial purposes, but was prevented by the City of Vancouver, who wanted to acquire the area for green space and (potentially) a future light rail transportation line. In 2006, the Supreme Court of Canada affirmed the city's zoning authority to prohibit CPR development, but the final disposition of the area was not resolved until 2016, when the City of Vancouver purchased the land from CPR for $55 million. In the interim, home owners adjacent to the unused rail line and local community groups had built and maintained numerous gardens and plots on the 9 km route. The homes adjacent to the corridor are large, and they are some of the most expensive properties in the city, with the green space adding to the exclusivity of the properties. In 2014, as negotiations with the city dragged on, CPR began repairing the rail line, clearing the gardens, and preparing to run trains on the line. The city filed an injunction to block the railway from reactivating the line, but that bid was dismissed in B.C. Supreme Court. In 2016, the City finalized acquisition of the land. Terms of the complex purchase agreement included a stipulation that a portion of the corridor must be dedicated for light rail transit use. This has not entirely ended the conflict over the area. Since acquiring the Arbutus corridor, the city has built a bike and pedestrian trail, and developed an Arbutus Greenway plan, but adjacent home owners have pushed for a return to the previous state. Many would like to leave the area wild and inaccessible which would make the now public area an exclusive green space for the wealthy adjacent home owners. The official Arbutus Greenway plan has divided the 9 km route into 8 different character zones that will include bicycle and pedestrian paths, public spaces, community gardens, plazas, and public art.

Guerrilla Park, Welland, ON

… excerpt ends here. Continue reading the full article.

Illustrations

Guerrilla gardening: Guerrilla gardening on a Los Angeles street
Guerrilla gardening on a Los Angeles street
Guerrilla gardening: Guerrilla gardeners planting vegetables on previously empty space in downtown Calgary, Alberta, Canada
Guerrilla gardeners planting vegetables on previously empty space in downtown Calgary, Alberta, Canada
Guerrilla gardening: "Art at the Park" at Guerrilla Park in Welland, Ontario in 2015
"Art at the Park" at Guerrilla Park in Welland, Ontario in 2015
Guerrilla gardening: Barry Thomas and Hugh Walton with team raking out topsoil delivered to site 4 January 1978. The soil cost Thomas $34 and 150 cabbage seedlings are about to be planted in the form of the word CABBAGE. Vacant Lot of Cabbages was not only an early guerilla garden it was a deliberate work of Duchampian inspired interventionist art. Photo Justin Keen.
Barry Thomas and Hugh Walton with team raking out topsoil delivered to site 4 January 1978. The soil cost Thomas $34 and 150 cabbage seedlings are about to be planted in the form of the word CABBAGE. Vacant Lot of Cabbages was not only an early guerilla garden it was a deliberate work of Duchampian inspired interventionist art. Photo Justin Keen.
Guerrilla gardening: One of the actions of the Urban Guerilla Gardening; two sycamore maples are planted at the site of an illegal car park.
One of the actions of the Urban Guerilla Gardening; two sycamore maples are planted at the site of an illegal car park.

Worked examples

Example 1 — a first encounter with Guerrilla gardening

Start with the simplest possible case. Write down what Guerrilla gardening claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Guerrilla gardening before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Guerrilla gardening ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Guerrilla gardening

In research
Guerrilla gardening appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Guerrilla gardening in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Guerrilla gardening is common in secondary-school and first-year university syllabi. It links to neighbouring topics Anarchist terminology, Biophilia hypothesis, Community building, so understanding it makes those chapters shorter.
In everyday life
Look for Guerrilla gardening outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Guerrilla gardening in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Guerrilla gardening means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Guerrilla gardening out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Guerrilla gardening in simple terms?

Guerrilla gardening is the act of gardening – raising food, plants, or flowers – on land that gardeners do not have the legal right to cultivate, such as abandoned sites, neglected public spaces, or private property. It encompasses a diverse range of people and motivations, ranging from gardeners w…

Why does Guerrilla gardening matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Guerrilla gardening?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Guerrilla gardening.

Tags

  • Anarchist terminology
  • Biophilia hypothesis
  • Community building
  • Community gardening
  • DIY culture
  • Environmentalism
  • Guerrilla gardening
  • Urban agriculture

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