National Trust's Sky Gardening Challenge 2025

Let's green Greater Manchester's Skyline together. Help nature thrive from your balcony or window box.
So whether you’re a gardening novice or a planting pro – if you have a balcony or window box, you can green the city above the ground. The sky really is the limit.
That’s why we’re encouraging Greater Manchester residents to welcome nature into their skyline space. To help nature bloom on every balcony.
To help you get started, we’re working with growing experts to bring you inspiration, guidance and gardening challenges to have a go at.
Sign up to National Trust's Sky Gardening Challenge 2025 to receive a free expert balcony gardening guide and monthly Sky Gardening Challenge newsletters via email or post.
Our Digital First Approach
We have limited stock of our print materials which we are trying to reserve for those in need of them the most, so if you are able to, please sign up for digital communications.
ND: Make sure you check the terms of your lease and get relevant permissions from your housing provider/building owner before making any changes.
From Thursday 12 June, you can enter the National Trust's Sky Gardening Challenge competition for a chance to win exciting prizes. More info coming soon via the link below.
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Get updates about National Trust's Sky Gardening Challenge and access extra balcony gardening advice by following us on Instagram and Facebook @NTSkyGardeningChallenge
Essential Information
33
Together, all the balconies in Greater Manchester cover an area the size of more than 33 football pitches.
1.4 million
Greening just ¼ of Greater Manchester’s balconies could host enough flowers to support 1.4 million pollinator visits.
152
In 2024, 152 types of garden plant were grown on 60 balconies across Greater Manchester.

Contact us
Email us for a paper sign up form, or any other questions.
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