Tuesday 29 May 2018

Bravehearts


By ‘C’:

‘Why couldn’t it have been Green Gym yesterday?’ is a common enough lament from a session photographer. 

Somehow the light is always better the day before, or will be tomorrow.  Yesterday, a lingering mist may have disappointed some bank-holiday-weekenders.  For shutterbugs, however, the unusual light-conditions leant an eerie beauty to the Chilterns landscape:

(Dampness also meaning one could be walk all morning and meet with any number of rabbits and skylarks – both species supposedly in decline in Britain: evidently not in rural South Oxfordshire – but as for humans … Well I saw just three cyclists, two hikers, and one dog-walker; oh, and a wingwalker.)

The mist did, eventually, clear.  After warm sunshine in the afternoon, topped by a glorious sunset, it seemed reasonable to hope that conditions would be good today as well.  But no!  Good for doing Green Gym; not brilliant for recording it for posterity …

The site warden had told us he had “a range of interesting, challenging tasks which members of your team would not want to miss.”  If there was an element of gently irony in that statement, there was nevertheless a spread of tasks for volunteers to choose from, as we gathered on the banks of a characteristic Chilterns chalk stream.

If it had been a bright summer’s day, it would have been an idyllic scene.  You can let your imagination play with these images?





Even on a grey day, it was really rather a lovely place to be.  Especially as we were lucky enough today to have an acoustic backdrop of gentle birdsong, but almost nothing else bar the sound of the wind in the wild grasses, and the patter of the odd cute bunny scampering out of the way.  And it could have been quite challenging: witness, the surprise amber rain warning posted by the Met Office this morning.  Fortunately, Green-Gym fell into the category of the 30% of occasions when the prevailing conditions did not result in a downpour.


One option for volunteers today was to do some raking: to remove cut material from “patches” in the wildflower meadow, and transport it to the compost area.  The patches had been generated by an exercise to try to knock back the Meadowsweet (Filipendula ulmaria).  As the name suggests, it is a sweet-smelling flower; and does very well by the neat trick of producing a heady fragrance (which for many people is the scent of summer in the wild), but no nectar: the insects keep visiting it regardless.  Unfortunately, at this location it has been doing rather too well, and threatening to monopolise the meadow.

Two Green-Gymmers promptly peeled off to set about raking.  Then returned about 30 seconds later, remarking a little sheepishly, “We might need rakes.”  A sentiment with which their colleagues readily agreed!

Once fully equipped, the rakers did rather a good job:


Task 2, which absorbed most of the manpower available, was to weed a section of the stream which is supposed to be devoted to watercress:


Looking at that photograph, you may wonder what the curious object is, which can be made out in the background (top edge, in the middle).  It is in fact what I would call a ‘bug hotel’.  Only this one is more superior, and is billed as an ‘Insect Palace’:


The weeding is still done by hand, as it was in the days when this was a working watercress-bed:


The weeds are then moved – like the cut materials from the wildflower meadow – by muscle-power and wheelbarrow to compost heap:



And the definition of ‘weed’ in this context?  It was not as simple as ‘any plant which is not watercress’.  For the beds being worked on are substantially colonised by Crowfoot (Ranunculus aquatilis), aka White Water-Buttercup.  Which would normally be quite desirable in a stretch of Chilterns chalk-stream, just not in a zone right outside a Watercress Beds Visitor Centre!  OTOH, it is difficult to eradicate, and Green-Gymmers’ time and effort were better directed towards other species.

Which species, precisely, was a question which came up throughout the morning.  This specimen, for example, which one Green-Gymmer carried round the site looking for someone to identify it, and decide its fate:

It was with a friendly smile (or it would have been impossibly rude) that, inevitably, at least one Green-Gym colleague called out, “Are you sure that’s not too heavy a load for you?”

Not that I personally was of much more assistance.  All I could say was that it was a water-plant, but not watercress.  For if some of my fellow Green-Gymmers will cheerfully admit to being “botanically challenged”, they have nothing on me, who sometimes has difficulty telling animal from vegetable from mineral.  Yesterday, for example, I had no idea that this slimy blob on top of a poppy flower was not some creature which was going to bite or sting me if I examined any closer:

It was, almost certainly, just the outer covering of the flower which, in poppies, (usually) falls away as the flower opens.  Which just goes to show that this Green-Gymmer can be about as smart as a stick.  [Well you said it – Ed.]

As for the mystery plant in the stream, that was assigned to the category ‘weed’: “probably Mimulus [guttatus] – Monkeyflower.  It’s a garden escape.  Pretty, but a real pain.”  According to the NNSS (Non-Native Species Secretariat, a Defra agency), it is “very stoloniferous and so tends to form extensive stands in suitable conditions.”  In its native western USA, Canada, and Alaska, it is in the wild limited to eking out a living in marshy areas and high-altitude meadows.  In Europe, it grows rampantly beside river, rill, or stream, alongside ditches, on wet pastureland, in disturbed ground, etc.

Meanwhile, as the morning advanced, the third team was progressively reinforced until it became a regular chain-gang.  The gang was engaged on what had been billed as the mystery task of the day.  “Path levelling” the site warden had said: “major earth moving job – not for the fainthearted.”

He was not kidding.  I had not supposed that he meant this kind of ‘not for the fainthearted’:

And we know I can be as bright as Alaska in December.  Even so, I do not think I was the only one at Green Gym who had not envisaged the immensity of the operation.  It really was to remove an entire embankment – just like building a railway.  Unfortunately, impossible to convey the sense of scale by photographic image!

First item, vegetation removal:


(On the left, behind the brash heap, you may be able to make out one of the rakers on the wildflower meadow.)

Then earth-shifting:


Followed by … a break.  Being a navvy made even the strongest Green-Gymmers need to pause and take a breather, while being briefed on the bigger picture of the project:


The line of the new path was surveyed:


Then back to the hard toil:

– For those who were still stout-hearted, that is.  As for me, I don’t mind admitting that half a dozen spells on that were as much as I could manage. 

It was at that point I swapped mattock & shovel for camera again.  There was, after all, some vital photo-reportage to bring to a conclusion: to show how much was achieved over the course of the morning.  Results from raking are more easily seen by the naked eye than through the lens of a camera – sorry!  The effectiveness of navvying and weeding, though, yes that I could document:
Before

After

Before

After

Tuesday 22 May 2018

Botany for Beginners



Our outdoor classroom today: the churchyard of St Leonard’s. 

That’s the one with the tower, which can just be spotted from the River Thames, downstream of Wallingford Rowing Club; and a site well known to us.  Very handsome it looked too in the morning sun:

A botanist could have an interesting study of the types of plants and their rate of growth amongst the graves in this churchyard.  In the open sunny area the grasses had predominated, growing to the height of the gravestones.  Together with brambles, nettles and various weeds they obscured the interesting engravings on the stones as well as preventing visitors from walking amongst them:


On the other hand, under the shade of the trees there was very little grass.  On the sloping part, cow parsley had predominated this year, sharing the space with nettles and other weeds: 
On the flat part of the tree-shaded area there was very little cow parsley, but plenty of nettles, ground ivy, weeds and a few struggling seedling trees.

Unfortunately, although the churchyard was very pretty …
it was seriously overgrown.  Green-Gymmers may have some botanical knowledge between them, but our task was to get the rampant growth under control.    

Most of the group charged in to tackle the grassy area at the west end, which is the first part that visitors to the church see.  They – the volunteers, that is – promptly disappeared from sight.
A smaller group fought the cow parsley which had covered both the graves and the path around the slope.

By tea break time most of the grassy area was cut.

Some Green-Gymmers remained to put finishing touches to that section before moving on, eastwards.

The big ‘hippo’ bags were rapidly filled, necessitating an emergency trip to a neighbouring church to ‘borrow’ another bag.  As they were filled they were dragged around to the wall beside the road, ready for collection the next day.  That caused a degree of concern, as some of the bags were so full they were much too heavy for one person to lift over the wall.   A rapid phone call to the collector was slightly reassuring as he should have another person to help, but it would still be difficult.

When even the extra bag was full, but there was time to spare, there was still the sloping area to finish – and the flat area to tackle.  The first question was what to do with the cuttings?  It was decided to spread some of them over the lower slopes to dry and decay, and gather the rest together as the site organizers nobly volunteered to come back later and take them away.  A large number of bags filled, and still more cuttings being generated, is not a new problem for Green-Gym visits here.
Spring collection, 2017
The second question was what to do about the very young trees that were springing up.  After a learned debate it was decided that as the majority were hazel, we should coppice them in the traditional manner.  One brave little oak (where had it come from?) was left: we must look for it on our next visit!