July 2024 - Eastbourne ECO Action Network

Eastbourne Food Partnership’s community engagement stall.

At a recent community fair at the Langney Community Centre, at which the Eastbourne Food Partnership ran a community engagement stall with regards to the new community garden being developed outside the centre, I chatted with Martin Hills, the gardener employed part-time by the centre to help design and develop the community garden on land owned by Eastbourne Borough Council. Martin is a qualified permaculture designer and is applying his knowledge of permaculture design principles to help design the community garden, which is about 0.75 acres in size. As he says in his garden plan: “The aim is for a thriving, self-sustaining ecosystem that meets the needs of its inhabitants – including human. To this end, it will be a place where people want to be, a place of beauty, a place that appeals to all the senses, a place where some human food can be grown, a place to play, a place to sit and quietly reflect, a place to connect with Nature”.

Martin Hills with his community garden design.

Martin standing in front of the community garden.

As the garden design incorporates vegetable beds already partly prepared, and an orchard already under development, as well as a forest garden that would contain plants that can be foraged, I asked Martin about how the food growing systems in the garden would cope with the extreme weather events now more frequently occurring as climate change accelerates. He replied that the key is diversity of planting and designing in resilience to the garden. The greater the diversity of food crops and plants grown within the garden, the more likely that there would be some crops in any year that would survive extreme weather events, even if other crops failed in that year, something that would have to be expected and accepted to some extent as climate change progresses. Increasing the chance of survivability would be made possible by the extensive use of no-dig methods, deep-rooting plants (especially perennials), and cover-mulching (with compost and humus produced on-site) to protect the stability and quality of the soil as well as ensuring enough drainage to prevent the soil from either drying out too much or becoming too wet. The site is on a slope, and elevated above the Eastbourne floodplain, so it does not suffer the kind of extensive flooding during extreme rainfall events that, for example, some of the allotments sites in the lower part of town do.

Google satellite image of Langney community garden.

The addition of forest gardening principles within the garden also helps as it increases biological sustainability and plant diversity, attracts pollinators and other beneficial wildlife, helps keep pests and diseases under control, and provides leaf litter, leading to increased nutrient resistance and drought resistance (particularly useful given that Eastbourne is in a water-stressed area and increasingly severe droughts are a feature of climate change in the south east of England). This helps to ensure the garden can flourish without large amounts of watering. The other useful feature of forest gardens is that they also allow for continual food output without annual tilling, pesticides, fertilisers, or other high inputs of chemicals or energy. Another good example of how a forest garden works can be seen at the Pevensey & Westham Community Forest Garden, a very short distance away from Langney.

Martin standing next to the copper beech tree in the community garden.

The community garden already has an abundance of mature trees around the edges, including a magnificent copper beech tree providing valuable cool shade. There are also some new tree saplings planted by Treebourne, which will provide valuable shade along the side of the garden next to the road. Trees help protect young crops by providing wind-shelter against winter storms and cooling shade during summer heatwaves, invaluable as the UK now experiences warmer, wetter winters and hotter, drier summers.

Martin explained that, as the community garden develops, whatever surplus food is produced by it will be directed to the foodbank and community larder hosted by the Langney Community Centre each week, helping to ensure that there is a regular, fresh supply of healthy organic fruit, nuts, and vegetables to supplement surplus food brought in from elsewhere. This will help to build local food security and food resilience in Langney, one of the relatively more deprived areas of Eastbourne, and this is so important given that national and international food supply chains are increasingly coming under stress due to the impacts of climate change.

Martin at the edge of the circular lawn.

The creation of a large, circular lawn in the centre of the garden would facilitate outdoor community gatherings as well as workshops to educate local people about matters such as foraging, crop processing, plant identification, etc. The Langney Community Centre is keen to facilitate this education, as evidenced by the explanatory signs in the Edible Garden already developed on a small patch of land immediately in front of the centre and maintained by a keen band of volunteers.

Martin’s top tip for growers is to avoid digging the soil as much as possible, as digging disturbs the soil life that is essential for good plant growth and efficient drainage.

Pevensey Bay is a low-lying coastal community in East Sussex, next-door to the large resort town of Eastbourne. The shingle bank along Pevensey Bay’s seafront provides protection from the strong storm surges that often come its way, especially in winter. But the village also experiences flooding inland, as several drainage channels run through it, helping to drain the large water catchment area known as the Pevensey Levels, a freshwater wetland renowned for its wildlife. Because the village is more or less at the level of the high-water mark, the water in the drainage channels can sometimes only be released out to sea when the ebb tide falls below the level of the water in those channels, which can be very full in periods of intense rainfall, periods which will become ever more frequent and intense as anthropogenic climate change accelerates. This can lead to the channels overflowing their banks at times.

To explore this phenomenon further, following on from my previous investigation on climate change impacts on local food growing, in collaboration with the Eastbourne Food Partnership, I paid a visit in June 2024 to some allotments at Pevensey Bay owned by Pevensey Parish Council, situated off Waverley Gardens. These allotments are next to the Salt Haven, one of the main drainage channels running through the village, and therefore had a history of flooding incidents. From my conversations with some of the allotment holders on site, it was clear that many of the allotments there are flooded at least once every year, but that the winter of 2023-24 was the worst in living memory for flooding, as there were about 4 or 5 very severe flooding incidents. Not all the site gets flooded, as about half the allotments are on higher ground as much of the site slopes gently upwards from the Salt Haven. But all those allotments that back directly onto the haven do flood every year.

The main impact of the flooding is that growing vegetables is pretty much impossible in winter on the areas that do flood, but it was noticeable that there were many large, mature fruit trees and bushes on the areas that experienced flooding every year, and that they seemed to be flourishing, with plenty of fruit developing on them, which seemed to indicate a high degree of tolerance to the flooding than if vegetables were planted, perhaps indicating how the allotment holders had adapted to such flooding by earmarking those areas just for fruit growing. Certainly the allotment holders I spoke to were phlegmatic about the flooding situation, accepted that only fruit trees were capable of surviving the flooding and just planned most of their vegetable growing higher up on the slope above the flooding level. But they reported that because there had been so much rain over the previous winter, the whole site was so waterlogged that most vegetable planting had to be significantly delayed until May, shortening the growing season quite considerably. The difficulties for growers on the site is reflected in the fact that the rental charges for the allotments are much lower than on other allotments in the area, especially in Eastbourne. However, it was clear from my site visit that, once planting had finally got under way, the productivity of the site appeared to be high, with most allotment plots demonstrating a healthy abundance and growth of crops.

pipe outlet that exacerbates allotment flooding

One allotment holder was keen to show me a drainage pipe outlet that was below the haven bank as it apparently aids the flooding of the site by allowing the water to flow easily onto the site well before the haven breaks it banks, leading to a much more rapid and more frequent flooding of the site than perhaps should be the case. It appears that there is no tide flap (or the tide flap is damaged or malfunctioning) on the haven side of the pipe to shut off the flow when the water level in the haven rises above the level of the pipe. I heard that there are probably several other similar pipes on site within the bank undergrowth with the same or similar issues, which has been raised by some allotment holders with the local Environment Agency staff to no avail apparently.

It does raise the possibility of whether a survey could be done at some point (perhaps by the Blue Heart Project or an organisation funded by it?) to investigate what kind of pipe drainage does actually exist along the Salt Haven and how it affects water levels both within the haven and beyond its banks. Such a survey would presumably involve extensive clearing of the undergrowth along the bank to check where the pipes are and what condition they are in. But it would perhaps generate valuable data about how the haven actually functions in a critical stretch of it before it reaches the sea, and also create more accurate data about how fluvial flooding impacts Pevensey Bay generally, as many of the gardens elsewhere in the village also experience flooding from the drainage channels.

Month: July 2024

growing food in a changing climate: a community centre view

growing food in a changing climate: an allotment view