Towards a Celtic Rainforest Economy

Towards a Celtic Rainforest Economy

Manx Wildlife Trust are creating a new temperate (Celtic) rainforest on its largest (105 acre) nature reserve at Creg-Y-Cowin. Once the trees we have planted become established, cows and sheep will return to rainforest to create a productive, biodiverse and wild habitat. But could more Celtic rainforest be productive for us in more ways, promoting our economic future and food security? Here we look some of the natural produce a Celtic rainforest can give us.
Hazel nuts Harvested from Crossags

Manx Native Hazelnuts from Crossags 

Hazelnuts.

Hazel trees are still uncommon on the Island (though thousands of years ago they would have been a dominant land cover). We are planting lots at Creg-Y-Cowin and in five year’s time they will start to produce hazelnuts. Around ten years from now they will be in full production, with a good bush producing a basket-full of nuts every year. One hectare of hazel trees can produce upto a tonne of nuts per year, which compares favourably (per ha) to cattle or sheep in fat and protein productivity.

The Island has one secret to hazel-nut production, and that is we have no grey nor red squirrels. Squirrels tend to eat hazelnuts in vast quantities and take them a week or two before they are fully ripe, so their absence makes the Isle of Man uniquely perfect for nut production.

Birch Woodland in Ramsey Forest

Downy Birch Trees at Glen Auldyn 

Birch sap

A quick look at the internet shows that you can buy bottled birch sap from Lithuania or Sweden for £10-£15 a pint. This naturally sweet mineral-rich health tonic drink is produced in late winter and early spring as birch-sap rises before leafing out in April. A large tree can produce a few gallons of the stuff every year. Birch happens to be one of the most common trees in a Celtic rainforest and is also one of the fastest growing, with sustainable production possible after around 15 years.

Tapping birch sap is a low-tech process, but the wound can damage the tree, so it is best to tap the trees that are going to be thinned out. Because birch is a fast-growing, short-lived and light demanding tree, they need regular thinning to give the remaining trees space to thrive, so tapping the sap is just part of a larger woodland management process.

Blaeberry at east Baldwin

Bird-sown Blaeberry in Gate Post at East Baldwin

Blaeberries.

Every July and August our family hit the best plantations (like Arrasey, Earystane and South Barrule), where parts are reverting to temperate rainforest, to forage for blaeberries. We can easily fill a lunchbox full and our lips and fingers will be stained purple from tasting the goods before the rest are baked into muffins.

Blaeberries (or bilberries) are common in acidic upland woodlands and replace heather and gorse in shaded areas of former heath. Blaeberry bushes grow to 1m high. They flower in spring and provide such good nectar that we have two native bees (the bilberry bumblebee and the bilberry mining bee) that depend on its nectar. Blaeberries spread easily via birds to new habitats, so new temperate rainforest habitats will have carpets of fruit laden bushes developing after a decade or so.

Blaeberries are a great ingredient for pies, jams, beverages and much more. People from Scandinavian countries have long had the knack of harvesting them from the wild using special combs, perfect to harvest our Celtic rainforest bounties. 

Celtic Rainforests can keep producing Manx livestock produce, but they also have the potential to be fully carbon negative and financially robust, diversified enterprises. They are more resilient productive habitats in the face of more extreme climate as they become productive earlier in the season and are much more resistant to drought than open farmland.

Turning produce in products requires entrepreneurism, but it need not be about getting products onto shelves (though that helps). Eco-tourism is a lucrative route in, with many people wanting to experience an immersive foraging and food crafting experience. Even if a product is not monetised it helps our local economy; a hazelnut foraged locally is not a hazelnut imported from Italy or Turkey, and the act of foraging helps maintain our Island’s mental and physical health as part of our free natural health service.

The bounty need not stop here; from timber to forest mushrooms, to crab apple jelly, biochar and even gin, the complex, layered productivity of a Celtic rainforest is an agroforestry treasure trove.