Sunday, May 30, 2021

IT ISN'T JUST HERE! (INVASIVES 2.)

Motives for adding to our horticultural riches by plant collectors abroad can be economic.Other factors can lead to the unwelcome addition to our native flora by the rampaging habits of invasive alien plants  by pure accident,  or the wilful dumping of unwanted plants in the wider countryside.

 Japanese Knotweed (Reynoutria japonica, alias Fallopia japonica) must be the most notorious. It has such bad publicity that there are possibly apocryphal accounts of would-be house buyers having been refused a mortgage if this plant has been seen on the premises.

 

This says it all.

This herbaceous perennial appears as red spears in the spring.


Japanese Knotweed rapidly grows into a dense clump at least 6 feet high.

Its flowers form attractive foamy white sprays.

Introduced from Japan to Holland in 1850 as a single female plant, it was then given to Kew and passed into the horticultural trade. It has subsequently spread, naturalized and established throughout the gardening world and thus into the wild. All from the one original female clone!

It grows from a stout woody underground stem or rhizome which in time will produce an impenetrable mat just below the surface, smothering all other growth, aided by the tall dense overshadowing top growth. Nowadays its rampant behaviour is leading to efforts to spray and kill all reported colonies on public land and it is illegal to spread even fragments of the plant outside your own property.

Himalyan Balsam (Policeman’s Helmet) (Impatiens glandulifera) is another now unwelcome Far Eastern introduction. This hugely tall luxuriant annual plant with big handsome flowers attracts attention and curiosity. I’ve been asked several times if it’s an orchid, but it is in fact related to the Busy Lizzie.

 

Its showy pink or sometimes white flowers are a rich source of nectar for Bumble Bees.

It favours damp soil and it will rapidly spread throughout river systems. The capsules explode when mature, catapulting the seed many feet, to the delight of children and giving it another name, Touch-me-Not. The seed has a spongy covering so it floats on water and travels downstream where the seedlings will germinate the following spring and produce a dense smothering forest of robust plants, only controllable by pulling or cutting before the flowers mature.

Eucalyptus species  (mainly Eucalyptus globulus the Tasmanian blue Gum) have in the past been planted and grown in many parts of Portugal and Spain as a fast-growing commercial timber crop.

It matures, flowers and seeds prolifically and its hard leathery leaves when shed, make a thick layer on the ground, very slow to rot and so they smother and overshadow any native ground flora. Now there seem to be efforts to cut and eradicate this result of the law of unforeseen consequences but commercial interests always seem to ignore the well known 'Rabbits in Australia' lesson until it’s too late.


Eucalyptus grown as a commercial crop in Spain and Portugal.


Dense growth of Tasmanian Blue Gum in Spain. Once established, it will seed itself.

 

Another commercial use of Eucalyptus, an 'essential oil'.

 

Eucalyptus globulus (Tasmanian Blue Gum) flowers.


 

Sydney Wattle (Acacia longifolia) This attractive tree, endemic to SE Australia but now naturalized in SW Western Australia and introduced to South Africa as a plant regarded as suitable for stabilizing sandy soils and dune systems has been such an enthusiastic thug that strenuous efforts are being made in the Cape Province for example, to eradicate it.


Sydney Wattle.



Hottentot Fig.

Yet another genii that has got out of the bottle is Hottentot Fig (Carpobrotis edulis) this one a present FROM South Africa! A vigorous succulent plant, it has escaped from gardens and at least along the south coast of  Britain, where it is largely free from frosts, it has spread in numerous places to form impenetrable mats which again smother out the less vigorous native coastal plants.


 

Additions to a country’s flora have always slowly happened as a result of  chance, mostly only surviving for a short time before they succumb to conditions they aren’t suited to. It’s the very vigorous and adaptable kinds which survive and elbow their way in. The horticultural trade worldwide has exacerbated the problem, spreading unwelcome guests (and too often their pests and diseases too) across the planet.

 


Wednesday, May 19, 2021

ÖLAND in MAY

 

ÖLAND in MAY

Suddenly the lilacs are out and I am reminded of our stay on Öland almost twenty years ago when all the lilacs in the gardens there were a glorious froth of blossom. We stayed in a holiday cottage belonging to old friends of ours. Daughter Kim and her husband Gwydion and Robbie their son, then three years old, came too.

Öland is a long narrow island in the Baltic Sea, just off the SE coast  of Sweden across a 6km long bridge from Kalmar.

 

 

Oland is the long narrow island just off the coast from Kalmar.

 We drove there, by a combination of ferries and road, camping in the Swedish forests on our way. Sweden has a relaxed view about wild camping and it is permitted, even welcomed. It was Rob’s first experience of sleeping in a tent and brewing up over a little camp fire and he loved it. What a shame he was too young to remember anything but the name of the Dana Gloria, the big North Sea ferry which impressed him so much.

 

 

             Robbie waking up after his first night’s wild camping. The tent was dismantled round him!


The island, about 135kms  from north to south and about 16 kms across, is served by a peripheral road running round the coast and a few roads going across. Frank and Marlies’ house  was on the edge of the  small village of Åkerby Lopperstad near the east coast. 


 

Frank and Marlies' house in Lopperstad.

 From log 20.05.03 (M.)....we reached the house without any difficulty thanks to Frank and Marlies’ map. Quickly unloaded and sorted out. It is a pleasant wooden house, painted light grey and with a red-tiled mansard roof in about half an acre and with extensive outbuildings.

We had a cuppa and then a leisurely walk back up the road to unwind and look at the plants and the birds. The roadside is fairly open with short turf on sandy soil and opposite the house a small pine wood with an understorey of Gooseberry and Fly Honeysuckle bushes.

Then we came to a few houses and a farm or two. The houses are mostly fairly small with burnt sienna painted walls and neat gardens with lilac bushes.

Heard the clear loud song of what we first took to be Nightingale in the wood, but later realized was  a Thrush Nightingale perched high up in the trees. Abundant Pasque Flowers with lots of tiny Forget-me-nots, cresses , Rock Rose and Meadow Saxifrage (Fair Maids of France).

We went into one of the little windmills we had been seeing  frequently along the road coming here, and walked round the standing stones of an Iron Age burial ground. There are about 40 around here, some earlier barrows, and apparently ashes and some pottery shards have been found here too. Also found a delightful Linnets’ nest with three little speckled eggs in a Juniper bush. The high ladder stiles over the fences have a little gate at the top to stop sheep climbing up and over I suppose. Good idea. The sheep are fairly small and leggy with short curly fleeces of fine wool in various shades from whitish through grey to black.

 

The windmill at Lopperstad.

 

The southern part of the island is designated a World Heritage Site because of the medieval layout of the villages, still the same to this day.

 

 


The road ran along a low ridge with the farms alongside. Their red or white-painted barns are built along the road with a central gate opening to the farmyard with more barns each side of the yard and the house faces into the yard on the far side. The very extensive barns to house stock, fodder and machinery in the harsh winters, are sometimes thatched with an extra ridge strengthened with cross-pieces of wood and elegantly carved ‘crow posts’ to deter evil spirits at the ends.

 

From log 24.5.03  T....Stopped partway down to Triborg Moss to look at the birds. There was some open water with marshy margins. Lots of Black-headed Gulls nesting on little islets had first attracted our attention. We could stand back on a grassy bank and look through the bushes and trees at the water some thirty yards away. There were Coot, Tufted Duck, Pochard and Shelduck and best of all lovely views of a beautiful Slavonian Grebe, stunning in his breeding plumage. with bushy black and golden cheek tufts. We only see them  at home in their quiet winter dress.


 

The lake with Slavonian Grebes.

 

Slavonian Grebes in full breeding plumage.

 Later we turned North to look at the church at Resmo. Like all of them here it was rather a plain, whitewashed building with a tower at the west end, in a beautifully kept graveyard. We took it in turns to go in, as Robbie was sleeping in the car. The early church on the site dated from 1000 AD and it was altered and extended over the centuries. Very plain inside but with traces of medieval paintings on the walls.

 

 

The little church at Resmo.
  

Stopped for a few items at a small shop on the way home. Gwyd did the talking as thanks to his musical ear he was able already to pick up a bit of, to us an incomprehensible language, and make himself understood.

The central Stora Alvaret. This area of limestone pavement, the most extensive in Europe is open and bleak, dotted with small bushes of Juniper and Birch. The thin soils overlay a reddish limestone bedrock with turf studded with flowers including masses of Orchids (yellow and magenta forms of Elder-flowered Orchid, Burnt, Military, Early Purple.....) pink Everlasting, yellow Milk Vetch, a little yellow Tulip, Twayblade leaves and a host of other species.

From log 25.5.03 M... we left the car and walked all morning on the Alvar. The Junipers were smoking every time you brushed past them, they were shedding so much pollen. We’ve seen Yew do this at home. Robbie had a lovely time smiting them with his stick. Quite a few handsome Rose Chafers about.


 

Rose Chafer on Dropwort.

 We stopped for our picnic by a wet place, which came as a surprise. The water issued from between rocks and ran away to a little stream and disappeared under more junipers. It was very clear and a small pool had little black tadpoles and large black leeches, one of which came out in pursuit of Robbie! It reminded Kim and I of the little ones in the Malaysian jungle which gave Kim and I the heeby jeebies. You didn’t know they had got you till you felt the blood run down your leg from where they had fastened onto you!

 

Picnic on the Alvar with Tree Pipits, Birds-eye Primroses and leeches.

There were numerous Lesser Whitethroats around and a good view of a Cuckoo and a Red-backed Shrike. Skylarks sang overhead.

 

 

Clump of Pulsatillas or Pasque Flowers.

 
Elder-flowered Orchid

 

 

 

 








 

Small yellow Tulip.








Red-backed Shrike.


 Coastal fields 

 From log, M.....After tea one evening we walked from Akerby just up the road, and down a track to the sea. It was a couple of miles between long narrow fields divided by rounded boulders of gneiss, granite, basalt (all abandoned by the ancient ice sheet) as well as slabs of the native limestone. No grazing, it was all spring corn and a grass/lucerne mix for fodder. Hares, Whinchats, Skylarks,Yellowhammers; quite a few Shelduck grazing, then Oystercatchers, Redshank and Ringed Plover as we got nearer the sea. Nearer the sea the ground was uncultivated and a few young cattle were grazing. A few Cranes were feeding in a damp place, Greylag Geese flew over and a great Sea Eagle flew over as it patrolled the shore. At the coast was a small group of red-ochre-painted fishermen’s huts all very neat and well kept but still looking closed up, as if they hadn’t yet woken up from winter. The land just gently merged into the water, with rounded granite rocks running out into the shallows. Lots of Mute Swans and Eider. It was a long walk for Robbie but he managed most of it. His ‘trailer’, a stick pulled  along behind him, making a squiggly mark in the sandy soil, keeps him going for miles!


 

The Jackdaws were bothering the nesting Lapwings and the Hare was chasing them.

 

Going down the track to the coast.

 

The land just gently merged with the sea.


 

A Sea Eagle was patrolling the shore.

 Flowery Meadows and Wood Pastures

From the log, M.....We decided to go northwards today. We passed several meadows full of Cowslips. Never seen such a show. We stopped up a track for our elevenses. Here it was Hazel coppice with standard trees of Oak and Ash. Below were more cowslips, Solomon’s Seal. Yellow Anemones. Herb Paris and a wealth of other flowers and lots of fungi that looked like Morels.

 

Yellow Anemones.

 

 

 

 

 

 

 

 

 

 


 

Toadstool like a Morel.

 

 

 

 

 

 

 

 

 

 

 

 

Robbie and I found a Wood Warblers’ nest in the bottom of a hazel bush. The bird flew off a few yards and we peeped in to see the little speckled eggs.

Further up the road we came across a Nature Reserve in more of the wood pasture. Quite a few people about here. R. was upset that we wouldn’t let him pick the flowers here. I told him that if everyone picked, there wouldn’t be any for other people to look at and enjoy or take photos. He pointed out that no-one had cameras! How do you deal with the logic of a three-year-old? He was soon diverted by the pretty pink flowers he found next and was amused by their long scientific name Cardamine hexadactyla! These woodlands on calcareous damp soils are a feast of flowers. The nearest I’ve ever come across in the UK is Wolves’ Wood in Suffolk, and some of the woods in France.

 

Wood Pasture.

There were numbers of archaeological remains all over the island. Great numbers of granite boulders marked grave sites, the most striking were the ‘boat burials'.

 

 

Stones marking a 'Boat Burial' dating from about 900AD

 Here and there was a ‘Rune Stone’ with the inscriptions now picked out in red paint.


Robbie reading the runes!

 From log May 26th   T....We went to Ismansdorp and walked a short way along a track through scrubby woodland till we came out to a  wood pasture with carpets of orchids and cowslips and in one place more of the lovely yellow tulips. Visible through the trees was the tumbled stone of a wall surrounding an Iron Age fort. It had obviously at one time been a very considerable structure. Inside it was stepped but the outer side was a vertical face about ten feet high. Roughly circular, the enclosure was 130 metres across (I paced it) and we calculated, after much discussion and re-working of our maths, that it was about a hectare in area. There were several well-constructed openings in the outer wall. The interior was almost entirely divided up into rectangular enclosures some 7 by 20 metres , which we felt was generous for habitation but perhaps also housed stock  and fodder stores. There were alleyways between groups of these enclosures and the outer compartments backed direct onto the surrounding wall. A most impressive and intriguing place.

 

 

Aerial view of the Iron-age fort at Ismansdorp.


From log a couple of days later.   T...Then on to the Iron Age Fort at Ektorps Borg. This has been considerably restored, the outer wall re-built to 20ft high with battlements on top. Inside, the wall is stepped like that at Ismansdorp, and there are three entrances, the main one though a towering archway. Don’t know how much the restoration is conjectural. But it is thought that in the Iron Age in places there was considerable Roman influence, for example the portcullis. Inside there were various styles of dwellings, storehouses and animal housing which had been built on the original foundation walls and employing various construction methods and styles of roof covering. The buildings back onto the outer ring wall and are radially arranged with common side walls. Mary expressed doubts about the practicality of this arrangement...what happens about the rainwater which would collect in the valleys between the adjacent roofs?

 

Thatched dwellings within Ektorp Iron-age fort
 

Some of the woodwork and construction of the houses and furniture was fascinating, especially the  arrangements for penning of the animals.

The fort was extensively excavated in the 1960s and three stages of development and occupation have been uncovered dating from early Iron Age to the post and plank walls of the early medieval which are still used today!

One building of stone and thatch was a museum with some of the 25000 finds from the excavation (including three tonnes of bones!). There were models of the three stages and it seems as if the forts were largely to protect the property and family of the larger local farmers although it seems as if there was also some military presence in the third phase.

There were several staff around dressed in medieval costume and demonstrating various crafts to a group of school children who were also dressed up. Another group was playing a game tossing horseshoes, and yet another was grinding corn and making damper. Robbie liked the hen-house with delightful hanging nest boxes of woven willow. Roaming around were two primitive-looking pigs and some small horned sheep and a few poultry. Robbie made great friends with the pigs. 

Though it was all a reconstruct, it was interesting to see how it might have been, but we were glad to have been to Ismansdorp first with its ancient and rather special atmosphere, whereas this place was disconcertingly like a film set with its newly quarried stone and dressed up ‘inhabitants’. Yet it was fascinating and informative.

The two week visit went all too quickly, leaving lots of places un-visited and places we would have liked to go to again. We were so pleased that our very good friends Frank and Marlies had opened up their house for us and we were able to reciprocate a little by tending their garden and doing a few house repair jobs. Sadly, they have both subsequently died but live on in our memories with many shared experiences over so many years.

Our journey back through southern Sweden and Denmark, with another good wild camp, completed a very enjoyable holiday.

 

Evening walk on way home through the Swedish forests.

Last Camp.

 THANK YOU KIM FOR YOUR DRAWINGS.

 

Blogs I follow:

 www.musingsfromhigherdowngateandelsewhere.blogspot.com 

www.downgatebatman.blogspot.com

www.northcornwallnaturalist.blogspot.com