2024 term2-3 project design

UNCERTAIN GUERRILLA GARDEN

Landscape Architecture Mla Y2 2023-2024 BARC0113: Advanced Landscape Design 2

Module Administrator: Laura Allen Design Tutor: Douglas Miller Katya Larina Student Name: Shihui Zhou Submission Date: 2024.09.03

content

project statement

1.Statement

4

2.Project Background

5

3.Design Strategy

21

4. Zoomed Intervention On Sites

49

5. Appendix

82

6. Biblioragphy

96

2 UNCERTAIN GUERRILLA GARDEN

Guerrilla gardening refers to an unauthorized, grassroots gardening activity typically organized spontaneously by the public. It aims to improve unmanaged lands in urban or rural areas. This project uses famous guerrilla gardening community “Grow Heathrow” as introduction, studies how people collaborate with nature in an off-grid style: stick to recycling, producing food and protecting environment. Even though this guerrilla garden has been evicted, the communities near heathrow airport are still at risk of being displaced, as the Heathrow Airport Expansion plan is implemented. In order to make better use of the gap period of time before runway construction, The author aims to establish an uncertain-future landscape within the next 15 years. Responding to studio 4 brief ‘Uncertain Sitopias’ this year, the basic design intention is to construct productive lands for people near Heathrow Airport. They could be small scale like personal micro garden field, to large field ridges that can block aircraft’s noise. People are invited to occupy these lands, and take their own plants away once the site is abandoned. The highlight of this project is to create landscapes in the most rapid and economical way to address an uncertain future.

3

guerrilla gardening

LONDON’s guerrilla field

GENERAL INFORMATION OF GUERRILLA GARDENING Guerrilla gardens consist of networks of volunteers. In its most basic form, guerrilla gardening is the ‘illicit cultivation of someone else’s land’ (Reynolds, 2008, p.16). According to Reynolds, there are mainly two types of guerrilla gardening regards to the aims: for personal purpose and for political purpose.

FOR PERSONAL PERPOSE

FOR POLITICAL PURPOSE

DURATION

DURATION

no management

no management

Guerrrilla war art to appeal for peace (Stern, 2008)

Decoration on border tree (Johnson,20013)

HISTORY OF GUERRILLA GARDENING IN UK TIME

Guerrilla gardening, as a grassroots movement does not have much written record in British history.

Richard Reynolds’ website provides a channel for people to gather and engage in guerrilla gardening activities.

EVENT

1649

earliest raise the concept: Gerrard Winstanley

2008

Richard Reynolds records it on the website:guerrillagardening.org and makes guerrilla garden a community in UK history (Fraser,2010)

2012

Salford, one city in North West region of the UK integrate guerrilla gardening with regeneration project, sponsored by the city council (Hardman, 2018)

BASIC CHARACTERISTICS OF GUERRILLA GARDENING

Community/Public Gardens

HM Land Registry is actively encouraging landowners to register their land and has committed to achieving 100% registration in England and Wales by 2030. However, as of now, about 13% of the land remains unregistered (HM Land Registry, 2018). Among these unregistered plots, ranging from abandoned lots to neglected corners, guerrilla gardens have emerged across London, transforming forgotten spaces into thriving green sanctuaries.

Greenery between the tunnel and the lanes

Underpass Grey Space

Undefined boundaries for guerrilla gardens

UNPROTECTED LONDON GREEN SPACE TOTAL NUMBER OF LGSS

AMOUNT OF LGSS RELATIVE TO POPULATION IN UK

LOW London

England

NUMBER OF LGS PER 100,000 PEOPLE ACCORDING TO NEIGHBOURHOOD PLAN LONDON: 1 of 100,000

Midlands

South

HIGH

LGS (Local Green Space) designation is a way to provide special protection against development for green areas of particular importance to local communities. Among 6515 LGs in England, London only takes part of 112 of them.

These data reflect London’s insufficient protection of LONDON green spaces, providing people with opportunities for guerrilla greening.

unregistered land

guerrilla garden sites

North

4 UNCERTAIN GUERRILLA GARDEN

5

HEATHROW EXPANSION & grow heathrow

STAKEHOLDERS ANALYSIS IN GROW HEATHROW TRANSFORMATION " GROW HEATHROW": EVICTED ECO-VILLAGE

LOCATION NEAR AIRPORT

GOV 2010, that a group of activists, calling themselves ‘Transition Heathrow’ squatted a former market garden in Sipson to create ‘Grow Heathrow’.

ER N

LO

RG

HI

ER AC

NI

ZA

TI

Sipson&Harmondsworth

NT

HY

LOC A

ME

planting trees

VIDUALS

volunteers

Hillingdon council

IN D I

growing food

IN G

waste recycling

generating solar energy hire members organize activities

TURNING POINT (NEWS REPORT 2020)

EN

They cleaned up the site which had been an unauthorised car parking lot, repaired the site’s old greenhouse, and became a community skills resource .

composting

A

RD

Grow Heathrow residents

I LL

GA

guide on permaculture

squatting

RR

S

give funding

ON

G UE

A DYING VILLAGE (NEWS REPORT IN 2013)

London councils

holding events local community

communitie's activities in Heathrow Grow (Rob Hopkins, 2024)

education on susatainability

A STALLED PROJECT On 16 December 2020, the UK Supreme Court lifted the ban on the third runway, allowing a planning application via a Development Consent Order to go ahead.However as of 2023 largely post-COVID pandemic, falling passenger numbers and concerns about investment costs have stalled the project.

6 UNCERTAIN GUERRILLA GARDEN

(“Grow Heathrow • [Squat!net],” n.d.)

While grow heathrow was evicted in 2021, Its team members continue to work on projects in the harmondsworth town.

(new Forest Garden, 2024)

The guerrilla gardening near Heathrow Airport has undergone a transition from radical squatting (gray area in the diagram) to volunteer-led activities (colorful area in the diagram). Throughout this process, the purpose of the activities has remained unchanged: to protest against the construction of the third runway in a sustainable manner. However, the stakeholders involved in individual guerrilla gardening have increased.

Apart from the support and guidance of the Transition Network, other artistic organizations and schools have also built connections with individual guerrilla gardeners. This has contributed to the sustainable development and expansion of gardening activities, thereby influencing the decisions of local governments.

8

guerrilla gardening toolkits

COMPARISON OF USING SEEDBOMB AND TRADITIONAL CULTIVATION

dry compost with fungi and soil microbes

dry mixed seeds

Using seed ball: no seed digging/ low maintance in primary stage

Traditional way: change the terrain

dry red or brown clay, finely powdered and sifted

CASE: SMILING HOGSHEAD RANCH, NEW YORK

REGENERATE SOILS Seed bomb is a method of planting without re quiring people to visit the site as they would in traditional planting m et h o d s . T h e y bombs require less preperation work, such as tilling and maintenance. What is more, they contain nutrients that support seed germination and growth, reducing the need for additional fertilization.

Use fungi for mycoremediation in order to clean polluted soil (adapted from Millson,2023)

Use drainage pipe for windrow composting (adapted from Millson,2023)

WATER CATCHMENT WITH EARTHWORK: SWALE STEP1: EVALUATE SLOPE

STEP2:LAY OUT THE SWALE LINES

ur conto lines

TEMPORARY LANDSCAPE&RECONSTRUCT CASE: GROW HEATHROW

50mm

Deciding whther to turn Site A from the current community garden into green space surrounding the future runway will take approximately 15 years. compost This process is highly unbiochar(2-4%) predicable. However, peoaeration hole ple will have enough time topsoil to change it through guerrilla gardening methods Site photo of making compost in grow Diagram of how the biochar-compost work before Site A is changed. heathrow ( Charlotte,2014) During guerrilla gardening, the designers often use local materials to construct temporar y landscapes.

These practices can be referred to for the process of constructing site A. These graphs show how people collect tree branches from the site to build the structures inside the tents. After the tents are abandoned, these branches become People collecting willow branches to make the basic structures of a tent in grow heathrow (Paul,2019) composting materials.

9 UNCERTAIN GUERRILLA GARDEN

use A-frame to locate the contours on the land STEP3: DIG OUT THE SOIL

ance

s enh

plant

There are many sustainable methods that can be used to regenerate soil in community gardens, such as using fungi for mycoremediation and windrow composting. The former enphysize the purifying power of fungi, while the latter recycles drainage pipes to provide suppoting materials for compost.

Such practices not only reduce costs but also decrease pollution.

<1:3

slope

m construction, the design, layout, and implementation of swales are quite affordable. They can How the swales work on sites with different slopes How to dig the soil for swales (“Install Swales be established on gentle | Permaculture Conversion,” n.d.) (“Install Swales | Permaculture Conversion,” n.d.) slopes ranging from 0 to 15 degrees. (Barnes, n.d.) bio-swale:cobble, stone & gravel mixturé

vegetation selected to tolerate wet & dry conditions roots to stable the soil

Typical section of a vegetated swales (www.Deercreekliving.Com, 2011,redrawn by author)

10

current situation of community near heathrow airport

Roadside Unregistered Land 2

Building

2

Water Body Green Space 2

OLD GROW HEATHROW SITE

3

Agricultural Land

New Grow Heathrow

Refilled Land For Airport Construction 2

Sites

Harmondsworth Recreational Ground

Average Noise Level(Db) Community Boundary team members of Grow Heathrow transfer to work on this new site after they got evicted in 2021

1

1

2

3

Harmondsworth Moor

Sipson & Harmondsworth are villages in the London Borough of Hillingdon, the westernmost borough of Greater London, England. It is on the north side of Heathrow Airport.

Due to the proximity to Heathrow Airport, there are many waste management facilities around the community to centrally handle waste, such as construction debris and household garbage. Meanwhile, because of the preparation for the construction of a third runway, some pits in two communities have been filled in and turned into agricultural land. Some quarries are still in operation.

There is also a wetland park in the community, converted from a landfill, designed to attract birds.

According to noise map in 2024, the average noises of the two towns reach up to above 60dB and 68dB seperatly. The World Health Organization (WHO) defines noise above 65 dB as noise pollution.

Demolition Waste Recycling Facotories Heritage Site: Harmondsworth Barn

HEATHROW AIRPORT RUNWAY

0

11 UNCERTAIN GUERRILLA GARDEN

250m

500m

12

site analysis OF harmondsworth recreation ground A

Green Space

Harmondsworth Moor

D

site activities

Refilled Land For Airport Construction Agricultural Land Road Buildings Water Body

Harmondsworth Moor is owned by British Airways.

The open parkland contains a variety of habits including meadows, rivers, lakes and ponds.

B

Sports Ground

Local residents visit the site primarily for outdoor activities such as dog walking and tennis.

E

‘Grow Heathrow’ community garden

refilled agricultural land

A

PROPOSED 3RD RUNWAY F

B

C

A

A’ D

The former volunteer group continues their work in the recreation ground, primarily focusing on tree planting and cultural restoration.

C

The area surrounding the site is mostly agricultural land. This picture, taken by the author, shows Brassica carinata being planted on these fields.

E

primary school

F

0

A The main users of this site are primary school students from the surrounding schools.

13 UNCERTAIN GUERRILLA GARDEN

50m

local community

100m

A’

Moor

Site

Residential Area

Agricultural Land

The residential area faces an uncertain future with the possibility of eviction.

14

noise pollution around harmondsworth recreation ground From a north to south, the site is located between agricultural land and residential area, with no vegetations or terrains to block noises coming from the south. From an east-west perspective, the site is surrounded by a wetland park, residential areas, and a stretch of agricultural land. Trees in the wetland can help reduce the noise slightly.

In the future, this recreation ground has the potential to block noise for the surrounding community.

90(dB) B’

80 70 Noise pollution level

65

65

60 50 40

30

0

5

10

30

60(min)

Noise recording on site for 60mins B

B Section B-B’ From Highly Noise Polluted Areas To Lower Polluted Areas

15 UNCERTAIN GUERRILLA GARDEN

B’ 0

100

200m

16

site analysis OF NEW GROW HEATHROW A

Green Space

demolished materials from Grow Heathrow

D

Transformable green spaces

Refilled Land For Airport Construction Agricultural Land Road Buildings Water Area

Demolished bricks and wooden boards from the old Grow Heathrow site are currently stored near the new Grow Heathrow site. Photo taken by the author.

B

Apart from Grow Heathrow, other unregistered roadside spaces in the Harmondsworth community could be transformed in the future using unofficial horticultural methods. Photo taken by the author.

Transformable Unregisterd Land

future usage

unmanaged land

A

A

reference: skip garden

A’

A B

C D

As unmanaged land, this small space is filled with overgrown plants and litter discarded by passersby.

C

reference: manor garden allotment

D

By practicing guerrilla gardening on these unmanaged sites, people have transformed them from neglected areas into thriving gardens. These efforts provide a blueprint for others in the UK who want to assert their right to engage in productive planting.

fence

0

10m

20m

Elevated Road

An aging steel fence separates the site from the road to the south.

17 UNCERTAIN GUERRILLA GARDEN

Local Community

Site

Agricultural Land

18

future of runway construction & two sites Proposed Runway Added Route Presevered Community Boundries Future Buffer Green Space

0

19 UNCERTAIN GUERRILLA GARDEN

200m

Due to the expansion of the third runway at Heathrow Airport, If the proposal to build a third runway is approved in the future. Nearly 1/3 part of Harmondsworth and Sipson will become the preperation lands for runway in the future.

As a result, many new green spaces will be created: some of them will be partly built on the basis of gravel pits in refill sites. Most of the community in Sipson will be preserved, while the buildings in Harmondsworth Village will be demolished. Additionally, the expansion of the airport will add a new road within the area. (picture redrawn from heathrow airport expansion – consultation document, june 2019)

400m

20

key ambitions

1. SELF-SUSTAINABLE

An self-sustainable site will be established for local residents to provide natural resources, offering the necessary food for daily living.

21 UNCERTAIN GUERRILLA GARDEN

2. PROTEST LANDSCAPE

By creating gardens and land art in public spaces, the local residents’ demand for unpolluted land is communicated to the outside world. It is conveyed by daily activities of people who squatting here.

3. HANDLE UNCERTAIN FUTURE

In preparation for the uncertain future of the garden 15 years from now, materials will be gradually transferred over the course of the next 15 years.

22

design strategy of two sites

STAKEHOLDER COLLABORATION MODES

SQUATING ON SITE CONSTRUCTION PROCESS

CITY COUNCIL

contact

ies

LOCAL COUNCIL

lic po

The original two plots of land are part of the community green space, mainly intended for residents’ activities.

g

in

d un

f

t ac nt co

In the construction phase, the local councils will publish relevant policies after consulting the local community and provide funding to construction firm. During this process, the local community will also provide feedback on earthwork.

overall policies

RECREATION GROUND

k

c ba

d fee

COMMUNITY

CONSTRUCTION FIRM

SOIL

SHED

WATER

Provide soil needed for residents to cultivate.

Provide shade to cover the water bodies, compost, and tools within the site.

Provide water needed for both people and plants during squatting.

SUPPORT ORGANISATION

MANAGEMENT GROUP

g

bo

lar

in

tio ra

in tra

n

communicate

ize LOCAL SCHOOL

ize

n ga or

COMMUNITY

SQUATTING ON PRODUCTIVE LAND

l co

Once the entire site is fully constructed, stakeholders will collaborate on its management. The Transition Network and other social organizations associated with Post Grow Heathrow will provide support for managing the site.

n ga or

ART ORGNIZATION

23 UNCERTAIN GUERRILLA GARDEN

24

construction steps of two sites RECREATION GOUND

PRE OCCUPATION

0-4Months

4months-1year

EARTHWORK: SOUND BARRIER

PLANTING: SOUND BARRIER

Transport Routes

OCCUPATION

POTENTIAL DISUSE

1months-15years

15 years URCERTAIN GUERRILLA GARDEN

Fill

Landform

CUT

Vegetation

Noise Reduction

Produce Food

Rain Water Collection Type1: Crop ridges

NEW GROW HEATHROW

Type2: Swale Ponds

Type4: Micro Gardens

Type3:Shed

tranport

COLLECT DEMOLISHED WASTE

Human Activities

PRUNE&EXCAVATION PERMENANT GARDEN

WOOD Old ‘Grow Heathrow’ Site

Demolished Waste From Waste Management Factory

PAVEMENT/ PLANTER/ TIMBER PILE

BRICKS

STEPS

CONCRETE

RUBBLE CONCRETE

STEEL

tranport

Protest Landscape

Habitat Restoration Near Airport

PEA TRELLIS Restoration Of Productive Planting

25 UNCERTAIN GUERRILLA GARDEN

SOIL/ PLANTERS

PLANTS

The design strategy is divided into three distinct stages.

In the first stage, earthworks and planting on the recreation ground site will be completed. During this period, preparations including the co l l e ct i o n o f d e m o l i s h e d waste materials and pruning on the new Grow Heathrow site will also be finished.

In the second stage, people will be invited to occupy the recreation ground, which features four main landscape typologies serving different functions. Simultaneously, materials such as seeds and planters will be transferred from the recreation ground to the new site during this period of time.

In the future, if the campaign for the third runway continues, the recreation ground may be abandoned, while the new Grow Heathrow site could be preser ved as a permanent location. Alternatively, if the recreation ground receives approval from the local council, and the third runway is not going to be constructed. It will be maintained as a permanent productive space for community members.

Restoration Of Natural Habitats

28

recreation ground design strategy-earthwork

model scale 1:400 29 UNCERTAIN GUERRILLA GARDEN

30

earthwork steps

cut and fill balance

Step 1: Cut Excavate soil from the site to shape a sunken landform, and use the excavated soil to create a sound barrier. turning radius width=5.5m Plan the shape of the main roads by having diggers and dumpers move along fixed routes on the site. route created width=1.2m Excavated and added soils.

Step 2: Fill Water-concentrated areas

Sunlight duration low high

Raised swales provide shade for the water pond, preventing evaporation.

Analyze the site’s sunlight exposure and water accumulation patterns to determine the location of water catchment areas, and create shade with raised berm swales.

A 3D-printed model to simulate the supporting structure within the landform.

31 UNCERTAIN GUERRILLA GARDEN

Final Cut: 7500M^3 Fill:8840M^3 Unbalanced Amount=1340^3 (Supplemented by demolished waste)) 32

EARTHWORK TO REDUCE NOISE A

distance between two lanform=11m

B

B’

Use berm in landscape architecture for reducing noise in airport (Fabrique, 2010)

11m is equal to the length of sound wave made by aircrafts

A’

Prototype A: mounds

cut landform to form noise reduction

0

10m

20m

0

10m

20m

Prototype B: cut landform to enclose underground activitie, extra soil used for plantation crops. Rainwater collected from the terrain is gathered in bioretention channels for irrigation. Any excess rainwater is discharged back into the river channels of harmondsworth moor

33 UNCERTAIN GUERRILLA GARDEN

34

recreation ground master plan

A1 A11 A2

A3

A4

A5 B2 A6 A2 B1

A7

A8

A9

A10

C5

C1 C4

C2 C2

C3

C6

C7

A. COMMUNITY GARDEN

B.POND GARDEN

C4

DRAINAGE CHANNEL

SWALE POND

C5

TERRACE THEATER

PORTABLE BEE HIVE

C6

OPEN LAWN

C7

NOISE REDUCTION FOREST

0

10m

COMPOSTING/STORAGE SHED

A7

GUERRILLA GARDEN STALL

B1

A2

POCKET GARDEN

A8

WILDLIFE POND

B2

A3

AMPHITHEATER

A9

BAMBOO PAVILLION

A4

WHEAT FIELD SQUARE

A10

SAND PLAYGROUND

C1

SEED STORAGE LAB

A5

WILDFLOWER MEADOW

A11

TENNIS COURT

C2

TARGET GARDEN

A6

BIORETENTION CELL

C3

ELEVATED WALKWAY

A1

C.RIDGE PARK

POTENTIAL ASPHALT RUNWAY

B

A A C

20m POTENTIAL BUFFER GREEN SPACE

35 UNCERTAIN GUERRILLA GARDEN

36

HOW PEOPLE OCCUPY THE LAND A

A’

B u i l d te n ts o n to p o f curved ground to provide shadow. The place is used for tool storage and composting.

S l o p e sta b l i zat i o n b y adding concrete retaining walls or pile retaining wall. People will be ensured with safe places to do horticulture in micro gardens.

Plant floral meadows on the topsoil of noise reduction landforms to create habitats for bees and butterflies.

E n h a n ce p ro d u ct i v i t y by shaping the topsoil of noise reduction landforms into ridge system.

A n e l e vate d w a l k w a y atop the cur ved-down landform serves as both a tourist attraction and a site for seed restoration.

Residents help prune the plants in noise reduction area.

A

A’

0

37 UNCERTAIN GUERRILLA GARDEN

10m

20m

38

planting palette

DECORATION LAWN

common bent

CROP RIDGES

red fescue

carrot

cabbage

lettuce

The selection of plants mainly focuses on three points: 1 Revegetation to create different habitats. 2. Attract local residents’ participation by using various forms of field ridges and planting beds, allowing them to grow plants they can consume themselves. 3.functional planting, including noise reduction barrier vegetation.

1.DECORATION LAWN& FLOWERAL MEADOW:

-community residents are invited to maintain and play inside -providing space for insect pollination -Providing shelter for invertebrates

2.CROP RIDGES& TARGET GARDEN: NOISE REDUCTION BARRIER

-stablize the soil on the ridges -community members are invited to grow their own plants to consume

TARGET GARDEN

3.NOISE REDUCTION BARRIER:

-Dense forests can better absorb noise from aircraft takeoffs and landings -with a rapid growth cycle, no need for longterm maintenance bamboo

oak

ivy

cabbage

spinach

onion

4.POND/MARSH:

- Provide habitat for birds in Harmondsworth Moor - Stabilize the bank -Purify water

SEASONAL CIRCLE

POND/MARSH

reeds DECORATION LAWN

CROP RIDGES

NOISE REDUCTION BARRIER

0

39 UNCERTAIN GUERRILLA GARDEN

10m

TARGET GARDEN

POND/MARSH

FLOWERAL MEADOW

water lily

Alisma Orientale

Meadow Foxtail

lavender

coneflower

FLOWERAL MEADOW

20m

42

circulation-water

WATER RESTORATION

water catchment SWALE REST O R AT I O N POND

BIORETENTION CELL

The water from irrigation on crop rifges will be collected and recycled.

IRRIGATION DRAINAGE CHANNEL DRAINAGE

FLOW OF WATER

43 UNCERTAIN GUERRILLA GARDEN

To manage rainwater flow from the landforms on the site, a stormwater management system has been implemented. This includes a bioretention cell, water restoration ponds, and drainage channels. Part of the collected water will be used for irrigation, while the remainder will be redirected to Harmondsworth Moor.

44

circulation-management

PRODUCTIVE WORK

MOW LAWN

PRUNE TREE

ROUTE OF MANAGEMENT

MAIN ENTRANCE

45 UNCERTAIN GUERRILLA GARDEN

The main maintenance tasks for the site include mowing and pruning. The lawn area, depending on the vegetation species, should be mowed every two weeks. Additionally, the vegetation used for sound barriers needs to be pruned every 3 to 4 months.

46

circulation-material

RECYCLABLE

BRICKS

47 UNCERTAIN GUERRILLA GARDEN

RUBBLE CONCRETE

Bricks and concrete from demolished construction waste can be recycled into hard materials for use on the design site or transferred to another location for future use.

LOCAL MATERIALS

LODON CLAY

London clay is easily to be found near Heathrow Airport. It’s impermeable feature allows it to be used as a pond lining.

LOW MAINTENANCE

WOODEN PLANK

Remove the nails and coating from the wooden planks, and ensure that the beams and boulders are securely joined with gravity, roots, and the ground.

Case: rooted in clay _ WYgarden, Canada

48

zoom-in:RIDGE park & SWALE POND

Main route for human activities

This page discusses how to integrate productive landscapes with recreational landscapes on functional landforms.

A combination of local groundcover plants, shrubs, and trees is used to block noise.

NOISE-REDUCTION FOREST

PRODUCTIVE FIELD

A Crop Ridges, they are situated on the ridge, and the excess irrigation water is collected in channels for viewing and reuse in irrigation.

RAIN WATER COLLECTION

CIRCULATION ROUTES Drainage channel

B

GUERRILLA GARDENING PLAYGROUND

ZOOMED PLAN

rainwater transfered for irrigation

Swale pond for rain water restoration

seeds are collected for storage

Viewing platform, with the space below used for storing and making seed bombs. The seeds from the trees on site are transported here for storage.

49 UNCERTAIN GUERRILLA GARDEN

50

A

VIEW A: RIDGE MEADOW WITH BEE HIVES DESIGN DETAIL: TRANSPORTABLE BEE HIVE

solar panel

bee hive

SOUND BARRIER

steel trellis

FLORAL MEADOW A meadow of perennial flowers is ideal for supporting bees and butterflies.

MIRCRO GARDEN

EDIBLE PLANTS

BEE HIVE A meadow of perennial flowers is ideal for supporting bees and butterflies.

BAMBOO THEATRE The bamboo theater provides a space for rest and gatherings for people protesting at the site.

Use disposable, detachable steel trellises as the supporting structure for the beehive, and solar energy to power other mechanisms on the site, such as water pumps.

DESIGN DETAIL: RETAINING WALL

concrete gabion corten steel REMOVABLE PLANTER Growers draw water from the swale pond to irrigate the flowers. The base of the removable planters is made from wood recycled from the old Grow Heathrow site. Wood chips and food waste are placed inside to create a fertile environment for plant growth.

51 UNCERTAIN GUERRILLA GARDEN

54

B

VIEW B: TARGET GARDEN ENRICHED SOIL

DESIGN DETAIL: TARGET PLANTER

IVY GROUND COVER Long perennial landcover together with bamboos will remain green in winter time. It provides habitats for insects such as spiders.

wooden pile

WOODEN PILE branches of trees will not only help stablize the slope but also provide protection and surface for vegetation on the bankside area.

PLANTER EXAMPLE

By placing targets above the terrace planting beds, visitors are encouraged to throw seed bombs. A planting bed already filled with plants grown from seed bombs can be set up as an example, encouraging people to throw seed bombs into other planting beds to achieve similar results.

GROWING PLANTER WITH SEED BOMBS

The bamboo theater provides a space for rest and gatherings for people protesting at the site.

55 UNCERTAIN GUERRILLA GARDEN

58

Crop Ridges

community ravine garden The ravine garden is built on an excavated landform. The main design strategy of the site focuses on two aspects: protest and functional planting.

Portable stalls provide tools for residents to engage in guerrilla gardening.

Meadow which provides habitats for bees and butterflies Main route for human activities

HABITAT RESTORATION Fertilized soils are transported for planting

Communal gardens

PRODUCTIVE FIELD

Memorial wheat field for harmondsworth barn

RAIN WATER COLLECTION

D

Rainwater transfered for irrigation

Accessible ramp C

CIRCULATION ROUTES

GUERRILLA GARDENING PLAYGROUND

ZOOMED PLAN

A detachable tent provides a space for gardeners to rest and store tools. Composting also done here.

59 UNCERTAIN GUERRILLA GARDEN

60

C

VIEW C:STORAGE SHED/WHEAT SQUARE DESIGN DETAIL: GUERRILLA STALL solar panel

planter WATER DRAINAGE Use a pump to draw accumulated water from the sunken areas of the site to irrigate the plants.

MEMORIAL WHEAT FIELD created in order to commemorate Harmondsworth Great Barn.

holticultural tools

COMPOSTING BIN Soil, wood branches, algae from the pond, and trimmed plant debris will be transported here for composting to provide soil for the plants on site.

STORAGE AREA The shade created by the tent provides a suitable space for storing production tools.

wooden pallet

TERRACE THEATRE

Guerrilla stalls are constructed from wooden pallets salvaged from demolished sites and Heathrow Airport. Users can collect horticultural tools from inside the stalls and store their own planters for guerrilla gardening on the site.

61 UNCERTAIN GUERRILLA GARDEN

64

D

VIEW D:MICRO PIT GARDEN/ RAINWATER GARDEN DESIGN DETAIL: EXCAVATION

BUILD BIRD HABITAT The wetland environment helps attract waterfowl from nearby Harmondsworth Moor, increasing biodiversity on the site.

FLORAL MEADOW

MICRO GARDENS The edges of the gardens are constructed from excavated soil and rubble. An exposed trench connects the garden to the bioretention cell, guiding the surface flow of irrigation water.

prepare basic landform

cut the retention pond, use the soil refill to build the edges of micro gardens

SMALL FRUIT TREES Small fruit trees, such as pomegranates, are planted inside to provide color and shade for people gardening.

BIORETENTION CELL marsh plants such as reeds, Marsh Marigold are helpful for stablize the bank and do water filtration.

RUBBLE RETAINING WALL Rubble concrete from demolished waste is recycled and remolded into retaining wall blocks.

grow plants

SURFACE CHANNEL

65 UNCERTAIN GUERRILLA GARDEN

68

master plan -new grow heathrow The design of New Grow Heathrow primarily handles the various plants and hard materials transported from the recreation ground.

These scattered green spaces provide local residents with areas where they can engage in daily gardening and connect with nature.

2

1

B

A

BAMBOO PLANTER

A’ 3

A-A’ PORTABLE VERTICAL GARDEN B’

B-B’ PLANTING SHED BETWEEN HIGHWAY AND REFILLED AGRICULTURAL LAND 4

1

SCHOOL GROUND

2

REFILLED AGRICULTURAL LAND

0

69 UNCERTAIN GUERRILLA GARDEN

5m

3

ROADSIDE LANDFORM

4

ARBOR GROUP: OAK AND ELM

10m

70

DESIGN STRATEGY: bamboo garden VEGETATION FROM RECREATION GROUND: BAMBOO

YEAR 1: PLANTATION

YEAR 2

YEAR 3-4: MATURE

BAMBOO TRELLIS

HARVESTING

YEAR 5: GROW

TIE WITH STRING

NAIL MADE BY BAMBOO BRANCHES

m

1.5

bamboo’s growth speed is quite fast, suitable for a temporary landscape

BAMBOO FENCE

Bamboo is a plant with a short growth cycle, typically maturing in about three years. Once mature, bamboo can be crafted into fences, trellis, and other structures, depending on its thickness.

1.4m 0.4m

0.2m

0.8

m

0.3m

71 UNCERTAIN GUERRILLA GARDEN

72

DESIGN STRATEGY: Portable Vertical Garden bamboo fence separate New Grow Heathrow from the surrounding refilled land

marsh plants and reeds help filter the rainwater before residents take them for irrigation their crops.

St e p s m a d e f r o m r e claimed concrete and wood planks from the recreational ground.

The local residents are harvesting beans and vine plants from the vertical tower. These towers were converted from bee hive towers on the recreational ground. Little soil and maintenance are needed for them.

The stalls in the recreational ground were dismantled, and the remaining pallets were used to create movable planters.

Edible plants like carrots and lettuce are being grown there.

A

A’

The site’s original terrain lines have been utilized to collect water, while the abundant planting beds create ample gardening spaces.

2m A

A’

0

73 UNCERTAIN GUERRILLA GARDEN

1.25m

2.5m

74

75

PLANTING SHED BETWEEN highway and refilled agricultural land

B

B’

The original driveway is now more effectively separated from the New Grow Heathrow site by bamboo fencing and shrubs. Also they provide habitats for wildlifes.

HÜGELKULTUR PALLET PLANTER

76 UNCERTAIN GUERRILLA GARDEN

77

phasing of occupation

1 day

1 week

1 month

1year

what’s the future of the landscape?

Once the noise reduction landform construction is complete, people begin to take the gardening tools they need from the guerrilla stalls in preparation for the occupation.

People begin greening the site and take their own garden sites.

A complete production system begins to take shape on the site, including planting, irrigation, fertilization, and storage.

Through pruning and maintaining the recreation ground site, people gradually begin transferring materials to New Grow Heathrow, where they establish smaller-scale guerrilla gardens.

This depends on whether the recreation ground can effectively function as a protest landscape. If it succeeds in halting the Heathrow runway project, the sound barriers will be permanently preserved and expanded throughout the community to shield residents from noise generated by the existing Heathrow runway. If the protest fails, New Grow Heathrow will still serve as a permanent site and provide a model for constructing guerrilla gardens in other parts of London.

SCHEMA 2: BLUEPRINT FOR OTHER UNMANAGED SITES IN LOCAL COMMUNITY

SCHEMA 1: EXTENDING NOISE BARRIER

78 UNCERTAIN GUERRILLA GARDEN

81

THANK YOU! (APPENDIX NEXT)

82 UNCERTAIN GUERRILLA GARDEN

83