Giant Hogweed | Life in the English Cotswolds

July to the end of December already is a memory and rapidly becoming a distant one at that. Just five days into January and Christmas seems further back in the mind than it is in reality. 2014 has arrived and I am optimistically looking forward to all that it may bring. Not that the last one was disappointing or sad in any way; just that with time flying by it is essential to make the most of every moment. Of course, I’m very fortunate: I have my health, I have a great job, friends and family I can always rely upon and I live in a superb part of the English countryside. Long may all those things last!

July: The highlight of my year occurred this month. An exciting and memorable launch of my first book to be published – a gardening book – Why Can’t My Garden Look Like That? took place in Chipping Norton’s award winning bookshop, Jaffe & Neale. Would anyone turn up? As it happened, very many did with people overflowing onto the street, the warm, sunny evening and the wine contributing to a street party feel to the occasion. If you wish to find out more of the book or would like a signed copy you can find details here.

Many people are attracted to the magnificent looking but dangerous Giant Hogweed, also the subject of a post this month. I was delighted when photographs from it were used in an educational video by the Hamilton County Soil and Water Conservation District (New York State). Take heed of the messages if you come across the plant!

August: Travelling around the Cotswold Hills as I do every day in the course of my work you would think I would know most of what goes on there. Nevertheless, I was surprised when I saw Tibetan flags fluttering in the breeze. Further investigation found Alain Rouveure’s galleries and tea room. Of course, I couldn’t leave until I’d tried out their lunch…

September: Street fairs have been held for hundreds of years throughout England and Chipping Norton has an annual one that dates back to medieval charters. Originally the time when livestock was sold and labour sought, these days they are purely held for pleasure. Traffic has to be diverted around the town as the centre is blocked off by the rides and stalls. Noisy, crowded and well lit they are great fun but I found myself completely alone in darkness walking around it late one night. It was an eerie experience, described here.

October: The appearance of the secret valley was changed dramatically when the willow trees that line the banks of our little winding river were pollarded. This dramatic ‘haircut’ is carried out only when necessary, the last time about fifteen years ago. Suddenly, the view in the header of this blog has become wide open as every branch was removed leaving just the trunks standing. The secret valley looks naked now but ‘new clothes’ will grow rapidly this coming spring.

November: History isn’t just about learning dates of battles, the most interesting aspects are those that we can so easily relate to. Yet so much of this is forgotten over time and it takes teams of dedicated people, often volunteers, to literally unearth it. A now deserted and seemingly empty part of the Exmoor National Park was, one hundred and fifty years ago, teeming with people and was at the very forefront of Victorian technology. It was quite extraordinary what these engineers achieved and their story featured in two posts which created much interest and comment. They can be found by clicking here and here.

December: The blogging year ended on a cuddly note – looking after two adorable but naughty beagle puppies. If you are a dog lover there is nothing better than to be mauled by puppies. If you’re not over-keen on dogs then you won’t understand the attraction! You could try to find out, however, by clicking here.

So what’s going on in 2014? Lots, hopefully. There is a new racehorse, more gardening, more travel, a lot more writing; it will be a busy year and how it pans out time – and this blog – will tell.

Thank you all so much for following my blog. Over one hundred thousand of you have looked at it since its inception which I find quite extraordinary and very humbling. Please continue to do so and to tell all your blogging friends to come and pay me a visit, either on here or at my full website www.johnshortlandwriter.com . I am also on Facebook and Twitter where daily updates can be found. You are always very welcome to contact me with your comments or queries and I will do my best to answer them all.

Wishing you all a very happy and healthy New Year.

Turn and run! Nothing can stop them. Around every river and canal their power is growing.
Stamp them out! We must destroy them. They infiltrate each city with their thick dark warning odour*.

Plant hunters have over the centuries introduced many beautiful plants to our gardens but they have also brought in others that have, as they escaped from its confines, become troublesome weeds. Japanese Knotweed, Fallopia japonica, creates problems by damaging river banks and pushing up through concrete, even entering houses; Himalayan Balsam, Impatiens glandulifera, is pretty enough with their hooked pink and white flowers but smothers native plants. Both are difficult and costly to eradicate. But the one that can cause the most trouble – and is undoubtedly the most impressive – is Giant Hogweed.

Long ago in the Russian hills, a Victorian explorer found the regal hogweed by a marsh … he came home to London and made a present of the hogweed to the Royal Gardens at Kew*.

Giant Hogweed, Heracleum mantegazzianum, was introduced to Britain from the Caucasus in Victorian times and soon became a popular addition to parks and gardens for, although similar in appearance to our native Hogweed, Heracleum sphondylium, these were giants in every way. Huge flower heads above equally large leaves reaching way into the sky – up to twenty feet or more in exceptional specimens – were something to marvel at. A hardy perennial, the plants shot up over the course of just one summer adding to its popularity, although it can be a few years before the plant flowers after which it dies. With up to 100,000 seeds from each plant, it soon multiplied and before long had found its way back to the marshy land adjacent to rivers and canals as in its homeland.

I wonder how long it took the Victorian gardeners to discover the problems associated with the plant for it not only spreads rapidly, it also is extremely toxic. Covered in sharp bristles that scratch the skin it is the sap from the plant that can cause major injury. Skin contact with the sap when exposed to sunlight results in severe dermatitis: itching and redness develop into blisters and dark wheals. These can last for several years. Contact with the eyes is even more dangerous for permanent blindness can follow.

So what do you do if you find Giant Hogweed in your garden apart from turn and run? It can be treated with weed killer and the ideal time to do this is when the plants have a large leaf area but before they flower. It is essential not to handle the plant at any time – even when it is dead – for every part of it including its roots will injure you. If you are tempted to carry out control yourself (and it may be wiser to call in a specialist eradication company (please, not me!)) then you must wear a complete coverall and full face and eye protection. You also need to remember that the clothing will also be contaminated and should be destroyed.

Fortunately, Giant Hogweed is rarely encountered in gardens. You are more likely to find it growing in waste places in the wild and it may be wise to report its presence to your local environmental agency. Attitudes toward it vary from country to country for this is not just a British pest – it is found in many other temperate regions of the world including the USA and Canada.

Perhaps at this point, I should remind you all that the majority of garden plants are harmless enough and that gardening and plants give a huge amount of pleasure. Happy gardening!

* The Return of the Giant Hogweed: lyrics by Genesis, 1971