Pocket parks

Bristol is very much a 'green city' because of its green spaces 
- many of them very small spaces indeed:
Street Pockets: Create change in your community - Bristol Green Capital

For example:

RESEARCH QUESTION: 

HOW CAN ABANDONED POCKETS OF URBAN SPACE BE RECLAIMED FOR COMMUNITY USE THROUGH PARTICIPATORY DESIGN PROCESSES?

Ebenezer Gate Pocket Park — Hands-On-Bristol
The "Hands on Bristol" project transforms the Bedminster district

There's even a bearpit in Bristol:
pocket park Archives - Incredible Edible Bristol

Even these small spaces are vulnerable, though:

The end of parklife as we know it? The battle for Britain’s green spaces

Britain’s parks are in crisis. With councils such as Bristol cutting spending to zero, and land being lost to developers, what’s happening to our public gardens?

The end of parklife as we know it? The battle for Britain’s green spaces | UK news | The Guardian

Even though the UK government is trying to sound encouraging:
Green light given to over 80 pocket parks - GOV.UK

Which gave us something in Honiton:
THG garden gains Pocket Park status | Thelma Hulbert Gallery

Meanwhile in Sidmouth:
Futures Forum: A sensory garden for Sidmouth >>> funding to help project revitalise a rather tired part of town

Finally:
Pocket park - Wikipedia
Chasing Pavement: Why Cities Are Big on Pocket Parks - TIME
Amanda Burden: How public spaces make cities work | TED Talk | TED.com
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