Furze

There is a fresh feeling to the countryside this week. Much needed rain is putting a touch of green back into the yellow-brown grass and the daffodils are beginning to open out, giving a wonderful golden-yellow display in our gardens to supplement the still-flowering remnants of snowdrops and crocus. Spring is here. Of all the plants of spring, my own favourite is one that barely gets a mention in most gardening and flower books – the spiky furze, or gorse.



We cultivate broom, its less dangerous cousin, which fits nicely into any sizeable country garden as well as colonizing wild areas, but you can be sure there would be vociferous objections from many in the family if you tried to introduce clumps of furze with its long branches covered in sharp-spined thorns. So the poor old furze tends to be an outcast, left on the edge of civilization, flourishing only in wild heathland, open grassy areas high up in hill country with only a few sheep and cattle for company. But what a magnificent display it provides at this time of year. As the road from Thurles to Nenagh climbs higher, the landscape from the Devil’s Bit across to the hills beyond Templederry is ablaze in a fiery yellow swathe as the furze flowers in its wild beauty.



It makes wonderful cover for wildlife. Canoeing on a lake one day, we enjoyed great views of a fleeing fox with hounds and huntsmen in close pursuit. Large patches of furze sprouted across the open moorland; the fox ducked into one for a few minutes’ rest, and then slipped unseen to the next while the dogs gathered on the perimeter of the first, apparently intimidated by the ferocity of the bristling spikes on the furze. For the best part of an hour the fox toyed with its pursuers, who could never quite pin down where it was hiding (we were not going to tell them) as it moved from cover to cover before eventually escaping to live another day.



Furze is a reminder of the natural wildness in the environment, helping us remember that our cultivated farms and gardens are all unnatural creations of the last few thousand years, and that the plants we grow for food and beauty are almost all bred by man from original species that slowly evolved over countless millennia.

Linnaeus the great Swedish naturalist visited Britain in the 1730’s and is supposed to have fallen on his knees and given thanks to God when he saw his first furze-covered common, so overcome was he by the sheer beauty of the scene.



So enjoy the furze, which will flower for most of the year and will give the bees an early source of pollen. If you make your own wine, gather its flowers and you will find it makes a wonderful, fragrant dry white. Use the plant to reconnect with untamed nature. Walk around Cabragh Wetlands and you will find a number of bushes; note that the flowers grow from leaf nodes and smell of cocnut. And you may enjoy putting that wonderful old saying to the test – “When furze is in blossom, kissing’s in season”.

A Lecture on Soil

Cabragh Wetlands is getting down to the basics at its next evening talk on Tuesday 23rd March starting at 8.00pm. The speaker is Stella Coffey, an organic farmer from Cahir; she has a BSc in Biological Sciences and her subject is “The Wonder of Soil”. This is a topic that most people will recognise as being of prime importance, especially for those interested in the quality of the food they put on the family table and in sustaining healthy biodiversity. Stella has one of the oldest organically certified herds (of Aberdeen Angus cattle) in the country. If you value the health of your garden, are starting out on a new allotment, enjoy the fruits of the Farmers’ Market or are concerned about the state of farming and use of chemicals on the land, then this is a key evening for you to attend. All are welcome and entry is free.



At the heart of any consideration about the health of our soil is that most undervalued of creatures, the humble earthworm. Though surrounded at home and Cabragh by books on wildlife, it is alarming that so many contain no indexed references to this crucial little fellow. The normal public reaction to a wriggly worm is almost invariably one of disgust, and total failure to recognize the key role played by worms in the development of life on earth. The sprawling compost heaps in my garden are a constant source of fascination. They act as breeding grounds for worms, which live in their thousands, eating their way through remains of plants and other biodegradables thrown on the heap. Material passes through the body of the worm, is cast out and gradually transformed by the action of bacteria into humus, that essential ingredient of fertile soil.



In a day a single worm will eat about a third of its bodyweight, well under a teaspoonful. Insignificant on one level, but on another perhaps the most important day-to-day activity on the planet. Every ounce of organic vegetable mould has passed through the body of worms many, many times. Worms alter the composition of the soil, improving its ability to absorb and contain moisture, changing the balance of microorganisms and nutrients. Through these processes they determine the ability of soil to grow particular kinds of plants, thus playing a key role in deciding which plants grow above the surface of the earth, and in turn influencing the type of insects, mammals and birds that can evolve and live in any area.



The worm moves through the ground, eating tiny particles of decaying organic material, which it ingests with a few grains of clay, creating a permanent burrow. At night it comes to the surface, leaves a few milligrams of castings and then searches for new material (leaves, grass, anything organic) to drag underground and break up. As well as acting as a miniscule plough, worms will, piece by tiny piece, shape the landscape above the surface, burying items left on the ground. That key you dropped, those stones you flung in a corner of the garden, that path you laid, all will be buried by the action of worms. Given enough time and enough worms, collapsed houses, towns and whole civilizations will disappear under the ground. Is it an illusion that things sink below the surface? Surely worms are causing the level of the surface to rise? Archaeologists having to dig down several feet to find their lost treasures are surely clear evidence of the unlimited power of the humble earthworm to shape the landscape above.



Charles Darwin spent his last years studying and writing about worms. This most humble of creatures has a strong case to be considered the most important and indispensable creature on the planet. There can be no doubt that it plays a far more important role in sustaining life on earth than humans. Come to Cabragh Wetlands on Tuesday 23rd to reflect more on “The Wonder of Soil”.

Biofuels

As part of a vast raft of ideas to reduce carbon emissions and greenhouse gases, stop global warming and save whatever we can of the huge range of life on earth, the European Community is legally committed to ensuring that a steadily increasing proportion of petrol and diesel used in road transport is sourced from renewable sources. This will mean more electric vehicles, but most (it is anticipated) will come from plant-based bio-fuels, including soy, sugarcane, rapeseed and palm oil. The advantage of plants grown for fuel is that they are renewable year-by-year, and that each litre of green biofuel burnt will reduce carbon emissions by 35% compared with a litre of traditional fossil fuel (coal, oil).



This sounds wonderful, but inevitably problems are emerging. The fuel-crops mentioned above are mostly tropical plants, and palm oil (apparently the most efficient for biofuels) can only be grown in regions like Indonesia and south-east Asia, west Africa, Brazil and the Amazon rain forest. To grow crops for biofuels to reduce greenhouse emissions, rainforests are being cut down at a frightening rate – rainforests which soak up carbon dioxide emissions as they grow. To meet desirable emission targets in Ireland, Britain and the EU, millions of acres of pristine forest are being logged, burned and converted to palm oil plantations. In Indonesia alone an area the size of Wales is being deforested every year. The orang-utan, one of our closest relatives, has been driven to the verge of extinction in Sumatra, and the survival of many tropical species of plants, insects, animals and birds is in doubt, including species only recently discovered – and probably others that we have yet to find and study.



We are now at the stage when studies are emerging which suggest that it is better to burn oil in your car than green biofuel, because of the environmental cost of producing palm oil, which is directly causing an acceleration of the loss of rainforest habitat. Burning rainforest releases greenhouse gases and reduces Earth’s natural ability to soak up carbon dioxide. A Danish study says that it would take 75-93 years for the benefits to the climate created by switching from fossil to biofuels outweigh the terrible damage caused by converting tropical forest to palm oil plantations. Apparently it will take 840 years for a palm oil plantation to soak up the carbon emitted from trees and soil by clearing forest to plant the crop.



This is a problem of horrible complexity. What is becoming clear is that palm oil is not likely to be a magical solution, despite massive lobbying by the multi-billion dollar business. Needless to say there is also evidence of corruption, violence and trampling on the rights of indigenous peoples. Can we ask those who are experts on these issues to share their expertise and perspectives with the general public? Are there crops that could be grown for fuel in the Irish climate? Certainly our farmers seem to open to chances to diversify with traditional agriculture struggling at the moment.