
California’s Giants Are Burning.
Your Sequoia Can Thrive for Centuries.
This October is your last chance to plant a Giant Sequoia in the UK before our next season in March 2026. Only 300 trees remain.
The World’s Giants Are at Risk.
California’s wildfires have already claimed entire Sequoia groves - trees that survived thousands of years are vanishing in one season. These giants, officially listed as Endangered by the IUCN Red List, are running out of time. Once thought untouchable, they now need a safe home beyond fire lines and climate chaos.
Here in the UK, stable soils and low wildfire risk give Sequoias a second chance to not only survive, but thrive in a safe haven.
✔️ Backed by independent audits and certifications (Soil Association, FSC) with every tree GPS-marked and monitored for centuries.
✔️ Already established: over 2000 Giant Sequoias planted across three UK groves, alongside 6000+ native trees for biodiversity.
✔️ A long-term vision: planting a 100,000-tree grove across the UK to ensure these giants survive for centuries to come.
A Safe Haven for Centuries.
How It Works
Adopt Your Sequoia
Choose your Sequoia today. Secure your place in one of our dedicated groves and put your name on a tree that will outlive us all.
We Plant & Protect
We plant your Sequoia alongside thousands of native trees, creating biodiverse forests. Each tree is GPS-marked, independently audited, and guaranteed lifetime care.
Your Legacy Lives On
Your Sequoia becomes a living monument. With a personalised plaque, GPS coordinates, and updates from the grove, your story grows every year.
Always traceable. Always verified.
STATUS : Planting 95% complete
PLANTING: 1500+ Giant Sequoias, 6000 UK native broadleaves + other conifer species.
The site is a previously felled coniferous commercial woodland that we will be replanting with a mix of Sequoias, nurse crop conifers, and native broadleaves. Existing trees on the boundaries of the site are very large for their respective species indicating excellent soil conditions.
View the interactive map below to track tree height and verified carbon sequestered by each individual Giant Sequoia.
Get Involved Today
Select the plan that works for you
Pay Upfront
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100m2 plot of land
3 UK native trees for biodiversity
20 other ‘nurse crop’ trees to help protect the Sequoia from frost and wind.
An engraved wooden plaque with your tree coordinates and planting date
You can come and plant yourself (optional)
Your tree listed on our site Register
Growth updates every 5 years with satellite and drone images and height + volume data
Tree maintenance and stewardship by our team
Month by Month
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100m2 plot of land
3 UK native trees for biodiversity
20 other ‘nurse crop’ trees to help protect the Sequoia from frost and wind.
An engraved wooden plaque with your tree coordinates and planting date
You can come and plant yourself (optional)
Your tree listed on our site Register
Growth updates every 5 years with satellite and drone images and height + volume data
Tree maintenance and stewardship by our team
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After 85 months your subscription ends and there are no further payments required. Your Sequoia is now big enough to look after itself and our team maintain the site and surrounding trees.
Alternative monthly subscriptions available for a shorter term.
Contact us at team@thegreatreserve.org
Your Name. Your Legacy. Your Sequoia.
Every tree comes with a named plaque, a GPS location so your family can always find it, and updates as it grows for centuries to come.
For many supporters, this isn’t just planting a tree - it’s planting their story into the earth.
Official Partners with Archangel Ancient Tree Archive.
The Archangel team are the world’s leading experts on Giant Sequoias. Our partnership with David Milarch and his team in the US is explained in an interview on FOX NEWS.
The Sequioas Can’t Wait.
Step inside The Great Reserve’s mission. This short film reveals why the world’s most iconic trees - now officially Endangered - are losing entire groves to wildfire, and how we’re securing their future in the UK for centuries to come.
Got Questions? We’ve Got Answers.
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Each Sequoia is planted in its own 100 m2 plot (about the size of a 2 bed apartment) together with c.20 other nurse crop treess of varying species to provide protection from frost and wind. We plant 3 native trees for every Sequoia to promote biodiversity. The trees are protected from browsing wildlife by methods recommended to us by our forestry experts overseeing each grove to promote maximum growth and success.
We use local forestry contractors for each of our groves to support the local communities, and have donated Sequoia trees and provided education sessions to local schools to help with environmental awareness and learning.
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We ensure we own the land the Sequoias are planted on to control the site. Furthermore once we have reaached our goal of planting 100,000 Sequoias we intend to incorporate a foundation/charity to become the steward of the trees for their remaining natural lifetime.
In the event any Sequoia does not survive we replace it with a new sapling. Sequoia trees are notoriously hardy and we do not anticipate many losses of mature trees.
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Our primary goal is to create a network of old growth Giant Sequoias in the UK to replicate what few are left in their native habitat in the USA. Effectively an insurance against the worsening impacts of climate change that has brought about droughts, superheated wildfires, and greater bark beetle fatalities. Sequoias were native to the UK pre-Ice Age. More recently they returned here during the Victorian period by those facinated by their size and magnificence. We now have many thousands of Sequoias in the UK and they have proven to be entirely non-invasive.
We get asked regularly about why we are not planting exclusively native species. Our response is that we are facing a very real climate emergency caused by an increasing amount of CO2 in the atmosphere. We need to find a response to this escalating issue that is in proportion to the cause, the mass burning of fossil fuels. There is currently no industrial viable solution on offer, so we must turn to nature and plant trees. The primary resource that trees use up that is in scarce supply is land, or more accurately land with owners who are willing to give up any commercial use and dedicate their asset to tree planting for carbon capture. As land is the limiting factor for tree planting, we must plant trees that are the most efficient at carbon capture per acre. The species most capable of carbon capture per acre is the Giant Sequoia, due to its massive volume accumulated over time. Even over a 100 year period, a Sequoia grove can capture in the region of 10x more CO2 vs. a native tree woodland. We are not ignoring the plight of native trees, we care deeply about them and would never cut down or harm a native woodland. In fact we plant three native trees for each Sequoia at our sites to promote biodiversity. Oak is our predominant tree of choice given it supports more biodiversity than any other native tree. Two little known facts are that Giant Sequoias were once native to the UK pre-ice age, and they do not propagate in the UK due to a lack of wildfires needed to open their seed cones. They are totally non-invasive for that reason. Bottom line is the world is heating up at an alarming rate. That in itself is a major threat to UK native woodlands. Our project is a response to today’s climate emergency by unleashing the power of the most mighty CO2 capturing tree on earth, that not only removes CO2, but holds onto it for over 1000 years. We care deeply about native trees, but we also care about our planet, and this is our way of doing the maximum to save it, and the diversity of species and ecosystems that it supports. We are looking big picture, and long term.
To put this in further context, according to Timothy J. Fahey, professor of ecology in the department of natural resources at Cornell University,
“An approximate value for a 50-year-old oak forest would be 30,000 pounds of carbon dioxide sequestered per acre,”. That is 15 tonnes. By comparison a Giant Sequoia grove will be closer to 200 tonnes over the same period, using UK growth rates seen in Sequoias that have been in the UK for over 150 years.
Reference link here: https://www.nytimes.com/2012/12/04/science/how-many-pounds-of-carbon-dioxide-does-our-forest-absorb.html
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We have planted groves in Hampshire, Abergavenny and Brecon. Our current planting site is near Abergavenny in Wales.
In order to future proof our groves from drought we now only plant in locations with 1 meter or more rainfall per annum. Future locations under consideration are Devon, Lake District, and Scotland.
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We are creating and upholding the highest standards in the industry with the following approach:
Our forests, starting with Abergavenny, have their FSC forest management certification demonstrating that we comply with world leading standards for responsible forest management.
Our carbon removal is audited and verified by the Soil Association on behalf of the FSC.
We have Treeconomy and their Sherwood LIDAR technology using drone scanning of our sites to provide accurate data on a per tree basis of how much growth (and therefore carbon removal) has occurred. This groundbreaking approach takes all the guesswork and inaccuracies out of the carbon reporting process to provide hard and true results.
We publish a register for each site with a clear allocation of each Sequoia tree to its respective owner.
We invite our partners to come and plant their trees themselves. There is no more ironclad evidence as to the quality and real nature of our project than seeing it with one’s own eyes and planting the trees in person.
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Giant Sequoias grow best in temperate climates where there is adequate rainfall. They are native to the Sierra Nevada moutains in California, however their habitat there is proving less viable for their survival due to the impacts of climate change - witnessed as worsening wildfires and extended periods of drought.
Since the Victorians started bringing over and planting Sequoias in the 1850’s, the UK has proven to be suitable for them to thrive. The species can survive temperatures as low as minus 40C, and are extremely resilient to disease.
Our best example of Giant Sequoias growing in the UK are the RFS site in Leighton, Wales. These were planted from 1853 onwards as a combination of Coastal Redwoods and Giant Sequoias
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The UK Forestry Commission quotes that within 100 years a woodland planted today would sequest 400-600 tonnes of CO2 per hectare. A Sequoia grove where the trees were growing in line with existing UK specimens, where each tree could expect to reach a 100 year volume of 50 tonnes, would sequest over 5000 tonnes of CO2 from the atmosphere between 100 trees.
Read our full article on using Sequoias to make the UK carbon neutral HERE.
Giant Sequoias are a non-invasive species as they have not proven to propagate in the UK due to a lack of wildfires, a necessary component for them to breed in nature.
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We grow all our own saplings from seed in partnership with a select few professional UK nurseries familiar with the Giant Sequoia species.
2025 Planting Ends 12 October
Once October ends, the next planting window won’t open until March 2026. This is your only chance this year to have your name in Grove #3.
Get Involved Today
-
100m2 plot of land
3 UK native trees for biodiversity
20 other ‘nurse crop’ trees to help protect the Sequoia from frost and wind.
An engraved wooden plaque with your tree coordinates and planting date
You can come and plant yourself (optional)
Your tree listed on our site Register
Growth updates every 5 years with satellite and drone images and height + volume data
Tree maintenance and stewardship by our team