Category Archives: Gardening

Conservation, Environment, Gardening

London Orchard Project’s 5th Birthday Party, in City Hall

City Hall and the Shard
City Hall and the Shard

In the evening I went down to Tower Hill and walked across Tower Bridge to City Hall, where the London Orchard Project was celebrating its 5th Birthday.

The City and The Tower of London: 1000 years of growth
The City and The Tower of London: 1000 years of growth

The amount of new development is a shock after the relative quiet of west London, but I had a strong feeling (presumably the City Hall architect’s intention) of being right at the centre of a great and bustling city.  Across the river is the quiet symmetry and antique military splendour of the Tower of London: it’s even beautiful in its stern way. But right next to it is the bulging, up-thrusting, grey glass, steel and concrete disharmony of the City, former giants like the NatWest tower and the Gherkin already dwarfed by newer demonstrations of financial might, brazenly shoving their manhood  up into the sky. It’s jarring.

But then, I reflected, there are Roman walls near the Tower and at the Barbican: this city is 2000 years old. It was already ancient when the Normans came and rudely shoved the White Tower with its four-square pinnacles and Might Makes Right foreign invaders’ pennants to fly high over a thoroughly defeated, despondent and disgusted Anglo-Saxon (i.e. English) nation.

Little Red Riding Hood (symbol of Idunn, goddess of Apples and fertility) would have been proud of the baskets of bright red donated fruit
Little Red Riding Hood (symbol of Idunn, goddess of Apples and fertility) would have been proud of the baskets of bright red donated fruit (image not enhanced)

Once inside City Hall, after the brisk initiation with airport-style security (at least I didn’t have to remove shoes and belt), it was down and round the ridiculously long spiral ramp – what a grotesque waste of space compared to stairs and lifts, but how distinctive also (presumably city politics takes you round and round and never seems to get anywhere, hmm), I stumbled into a meeting room decked out with fruity bunting, maps, photographs, fruit juice, cider, apples, apple cake and bowls of dried fruit and nuts.

Some of the Project's Apple Juice to try
Some of the Project’s Apple Juice to try

I learnt that London Orchard Project had been founded by two friends, Carina and Rowena, who had just realized that our parks didn’t have to consist of nothing but inedible London Plane trees and grass. They emailed a lot of people and within four days had 120 groups who wanted to join in! Since then, 12 old overgrown orchards have been saved and restored, and an extraordinary 83 new orchards have been planted all over our city: soon there will be 100. Even after 2000 years of urban growth and development, I reflected, there is still space and energy and enthusiasm and collegiality for a hundred beautiful spaces full of healthy, vigorous,  productive fruit trees.

Carina, Rowena, Lewis and Amber cutting the cake ... with a fiercely serrated pruning saw
Rowena, Kath, Carina, Merrin, Lewis and Amber cutting the cake … with a fiercely serrated pruning saw

All the talks were remarkably interesting. Lewis McNeill gave practical tips for healthy fruit trees, from pruning to fertilising, and gave away root cuttings of Comfrey, a herb which grows vigorously and gathers minerals in its leaves, making it ideal as a mulch for Apple trees. London Glider cider-makers described their first few years, going from newbies to experts: unlike beer, which you make, sell, and then do the next batch, cider is made in the autumn, sold in the spring so you need a lot of storage: they do 7,000 litres a year, the limit before paying excise duty on every litre.

Amber Alferoff, a project manager (she’s on the right of the photo) spoke on the folklore of apples – all those fertility goddesses like Astarte/Ishtar, Aphrodite, Freya, Idunn and the Roman goddess Pomona (that was an easy one) have names that mean Apple, apparently, while Adam and Eve are offered the Apple by the Snake/Dragon, a combination that goes right back to ancient Babylon long before the bible, apparently.

London Orchard Project founders Rowena and Carina cut the birthday cake
London Orchard Project founders Carina and Rowena cut the birthday cake

Carina and Rowena joined the celebrations by cutting the cake with a viciously sharp doubly-serrated 70-cm pruning saw (and the obligatory hard hat for tree work). There are 1200 volunteers; hundreds of Orchard Leaders; 50 public events; 3 tons of apples; a new apple variety, “Core Blimey”; and they even met the Queen. They worked fulltime for the project for a while but have now taken a well-deserved back seat as trustees.

In the driving seat now is Kath Rosen, Chief Executive, who spoke energetically about progress and the future, which most immediately is to start work in other cities including Manchester. That means the project has to be renamed to the Urban Orchard Project, as it’s no longer just London: growth indeed.

And Rich Sylvester, wearing quite a hat, told stories and made us sing an adapted version of ‘I’ve been a Wild Rover / For many a year’ only it was all about orchards.

But for me the most inspiring talk of the evening was given by the community team from the Orchard Estate in West Greenwich. The photographs told the story: a bleak estate of tall ugly brick-and-concrete towers surrounded by blank areas of grey concrete and dustbins. The residents never spoke to each other. Then in 2012 with the Olympics, money was on offer for a dozen projects, just a proposal was needed. They had a go and won: now there’s an outdoor gym area, popular with all ages; a large square of grass dotted with neatly mulched circles around handsome apple trees; and a veggie polytunnel and a dozen allotment plots, where neighbours come out to sit, chat and enjoy working together. The effect on wellbeing and genuine community (what an overused word that is) was immediate. Now the London Orchard Project has got them to act as tree nursery for the whole project, as they have enough land for it, and willing people too.  When they said that now they were extending the orchard with more trees every year in a new area of the estate, there was cheerful and rightly appreciative applause. We learnt, too, that visits to other orchards were always enjoyable, always a time to learn more. The name “Orchard Estate” had come, by the way, from a real orchard that the concrete had destroyed, the architect soullessly naming each hideous tower after a kind of apple – Worcester Pearmain, Egremont Russet and so on. Now, full circle, a tree of each of those varieties has been planted: all but one, now uncommon, which is being sought. Life goes on, and together, if we work as a community, we really can be in harmony with nature and each other.

 

Gardening, Natural History

Delicious Ornamental Cherries!

Yes, it’s ornamental cherry time again. Sitting at the breakfast table with a coffee, I watch two male Blackbirds perch on the garden table and chairs under the tree. One flies up, hovers for an instant, lands, and can be seen to have a small black cherry in its propped-open beak. It swallows, looks up, repeats the cycle.

There is a Blackbird nest exactly in the middle of the ornamental cherry, atop the end of a cut branch; it is not very well hidden from anyone walking in the garden, nor very far from night-prowling cats.

Less welcome are the Wood Pigeons that noisily flap into the tree’s slim branches, finding a wobbly perch before greedily guzzling the tiny cherries, the first fruits of the year. If they become numerous they will threaten to devastate the crop of real edible cherries from my ‘Stella’ tree. Stella is a good deep red variety, not as dark and bitter as Morello (but a great deal sweeter), though rather on the late side. The pigeons, of course, find it delicious. I always had to cover the tree with nets, until last year when there was hardly a pigeon or even Blackbird to be seen near the tree: I suspect a bird-killer cat used to lurk on the shed roof at night and stalk its avian prey.

Out the front, another bird-only cherry grows in the pavement. It is risky to park the car beneath it, the birds – mainly starlings – spotting roof and windows with rich purple-red stains made gritty and corrosive with white powdery uric acid.

Gardening, Natural History

Insect Pests and Predators on Spinach (and Gooseberry)

Leaf miners in Spinach Beet leaf. A strip of the leaf's upper epidermis has been torn back.
Leaf miners in Spinach Beet leaf. A strip of the leaf’s upper epidermis has been torn back.

Well, I usually try to take a pretty picture to start off a posting, but this one certainly doesn’t qualify. These leaf miners grow entirely inside a leaf, in this case of Spinach Beet. As you can see, as they grow they tunnel around below the leaf’s upper epidermis, which is a translucent layer of cells, leaving it intact to provide themselves with a ready-made cover.

Underneath that sheet, a healthy leaf contains a thick green set of palisade cells in one or several layers. These are the leaf’s (and the plant’s) factory, as they are full of chloroplasts, coloured green to absorb light: they synthesize the sugars on which life depends.

Not many people would want to eat this leaf, once the leaf miner larvae – mostly moths – have been at work. The palisade layers are entirely and efficiently destroyed wherever the insects have been. All that remains is an air-space and some dark frass: all, that is, but for the plump whitish cylindrical bodies of the larvae themselves.

Ladybird larvae and eggs on Spinach leaf
Ladybird larvae and eggs on Spinach leaf

Also nesting on the spinach are some ladybirds. These have incomplete metamorphosis, the young being able to walk as well as eat from their first stage or instar. Each time they moult they change in appearance as well as in size. They mainly eat aphids, troublesome pests of many crops, so they are useful to gardeners and to any farmers who don’t want to use insecticides.

Shield Bug on Spinach
Shield Bug on Spinach

This shield bug, seen here in close-up, may look conspicuous enough, but that is the camera’s view. The insect is actually rather well camouflaged, and it generally hides under a leaf where it is in some shadow. The camouflage consists first of a general colour resemblance to its background, with its overall grass-green coloration; and as seen here, it is also disruptively patterned, with the reddish brown of its wings tending to break up its outline. Perhaps it is also somewhat countershaded, with dots stippling its back.  Bugs suck plant juices, and their larvae can be quite destructive, but they never seem to do much harm to the spinach.

There are also some green caterpillars, excellently camouflaged with a pale cream stripe all along their sides. (It might be the Hebrew Character moth.) You might expect this to be conspicuous, but it seems to be a classic piece of disruptive coloration: the stripe appears like a sun-glint specular highlight on the shiny crumpled surface of the spinach leaf, rather than part of a solid, round-bodied animal.

A Sawfly ... not on Gooseberry
A Sawfly … not on Gooseberry

A pest I know is there is the Gooseberry Sawfly. There are numerous sawflies in the garden right now, but they are all flying around the Nasturtiums, nowhere near the gooseberry bush. However… plenty of the lower leaves of the gooseberry are badly damaged by sawfly larvae, some eaten right down to the petiole, pathetic little stumps with a few short branching veins all that remains of once green foliage. What to do about it? This isn’t a how-to-garden site, but inspect your gooseberry bush(es) regularly, looking especially at the lower leaves to see if they’re being eaten. If some are, check the edges for caterpillars. If you find any, spray the bush after sunset on a dry still evening (to avoid killing the bees that are pollinating your fruit) with a garden insecticide.

Five minutes of careful searching of half-eaten gooseberry leaves failed to reveal a single larva. The cause in this case is not so much camouflage as the incredibly intense predation by Blue Tits (and Great Tits). I estimate these little birds are a hundred times better at finding caterpillars than I am. They have the advantage of getting in close – they must be able to focus down to a few centimetres, their small eyes acting as short-focus wide-angle lenses – and of being able to perch anywhere in a bush. They also get up very early, and know instinctively exactly what food looks like: small well-camouflaged caterpillars on the undersides and edges of leaves.

Zoologists suppose that birds have a ‘search image’ of the prey they are hunting: perhaps this is much the same idea as the training images that computer scientists use to teach their neural nets to recognise patterns such as faces. Once you have such an image in your brain, you almost instantly recognise your target when it appears. To give a small illustration, I remember when I had a small motorbike, I always saw bike shops everywhere; now I never notice them. My eye was attuned, like a Blue Tit’s to a caterpillar.

Environment, Gardening, Natural History

The Foxgloves are early, the Nasturtiums flower all winter

 

Foxglove
Foxgloves, growing in a shady corner of the garden

My foxgloves are beautifully in flower. They began around the 11th of May and are now in full bloom. Most are dressed in traditional purple with the insides of the “gloves” spotted deep purple in white areas, as if the pigment had been dragged together into clumps. Some are in unspotted white: creamy when closed, dazzling greenish-white in full bloom. This is seemingly a naturally-occurring variation, with perhaps a single mutation preventing pigment development.

Nothing extraordinary there? The clue is the date. Back in the 1940s in Dorset, John Stuart Collis calmly states that Foxgloves come out in August.

The odd science of Phenology tracks the dates when natural events occur in different years, thereby building up an accurate picture of changes in many species. The idea is seen in one of the classics of natural history, Gilbert White’s Natural History of Selborne (1789), which includes observations of the first Swallow to arrive, and so forth, and in some editions actual tables of phenological observations. These are described as “A comparative view of the Naturalist’s Calendar as kept at Selborne in Hampshire by the late Rev. Gilbert White MA and at Catsfield near Battle in Sussex by William Markwick Esq FLS from the year 1768 to the year 1793.”  For the record, White notes Foxglove from May 30 to June 22; Markwick notes the same species from May 23 to June 15.

So in this case the anomalous datum looks more like Collis’s than mine. Still, flowering does seem to be earlier; explanations could include that London is warmer than the countryside, that plant varieties may differ, and climate change.

Mind you, even Gilbert White would have had a hard time recording the phenology of the Nasturtium this year. Without a winter frost, which usually kills them in December, the plants survived all through the winter, and have remained in flower essentially continuously. “1 January—31 December”, I suppose.

Nasturtium
Nasturtium, all natural. The colour is as the camera saw it, and the water droplets are rain or dew, where nature left them.

 

Gardening, Natural History, Wildlife

Even more on a Blackcurrant Leaf … Welcome or Not

Further to the World on a Blackcurrant Leaf, today the Ichneumons and the Harlequins were joined by two more conspicuous flying visitors, some green Shield Bugs (true bugs, Hemiptera) and some swift yellow-abdomened Sawflies, most probably Gooseberry Sawfly. Both of these are held in definite disfavour by many gardeners, the bugs for sucking plant juices and possibly weakening plants or spreading disease, and the sawflies for making caterpillars which in a bad year can totally defoliate gooseberry bushes — it only happened to me once, and it was quite a shock: from seeing the first little green caterpillars to leafless plants only took a week or so.

Since then I have carefully checked the gooseberry every few days for signs of sawfly damage (and actual caterpillars). If there are just a few, I remove the affected leaves and squash any caterpillars I find; this usually does the trick. If there are many, which has only happened once or twice, I consider spraying, choosing a time without wind, after sunset so the bees aren’t flying, and work close to the bush to keep the stuff local. The approach seems to work well for bees and berries.

As for the bugs, well, I rather like their handsome appearance and their confident swagger. There always seem to be enough currants so I don’t mind if the yield is down a bit on what it might have been.

Gardening, Natural History

To See the World on a … Blackcurrant Leaf

Apologies to William Blake and the world in a grain of sand and all that.

Today, being a May Bank Holiday Weekend, it is very sunny and bright but the temperature has plummeted. I went shopping with my bicycle — wearing a thick fleece under a windproof jacket, and a ‘silk’ balaclava under my cycle helmet. So much for ‘Cast Ne’er a Clout / Till May be Out’. (I’ve never been sure whether ‘out’ means ‘May has come out’, i.e. it has begun, or ‘May has gone out’, i.e. it has ended. Whichever, it’s remarkably cold.)

After all the nature reserve visits lately, it’s time to look for wildlife closer to home. The blue tits have a lot of hungry little mouths to feed in the nest box above the kitchen door, and the adults flit in and out every minute or two. Sometimes one parent is still feeding when the other returns, whereupon the returner goes and perches in the Apple tree, calling softly, until the feeder flies out. There must be at least 40 feeding trips per hour, and it could easily be more. Remember that next time you’re wondering how much trouble kids are.

Ichneumon Fly on Currant leaf
Ichneumon Fly on Currant leaf

The Blackcurrants are in full leaf now, and suddenly today each leaf seems to have an insect crawling over or displaying upon its upper surface. Some are certainly brief visits: smallish Ichneumon flies, about 10mm long and very slender, walk or run hastily about, on the lookout for caterpillars to parasitise with their eggs, a way of life disgustingly cruel enough to put Charles Darwin off religion for ever – leaving all the intellectual arguments aside, he simply found it sickening to imagine a loving creator doing anything so cruel. It’s interesting for such a careful scientist, able to spend 20 years marshalling arguments and evidence, that on a personal level, it was a visceral reaction that settled matters.

Harlequin Ladybirds mating
Harlequin Ladybirds mating

Other insects are clearly more like residents. Half-a-dozen leaves have a boldly coloured Harlequin Ladybird (or two: mating) in full view. It has been well said that insects fall into two camps: those that take good care not to be seen, and those that make sure they can be seen. Ladybirds, with their bold warning colours – red+black, yellow+black, red+black+white – are certainly in the conspicuous camp. This means they are signalling their unsuitability as food; the great pioneering zoologist E. B. Poulton coined the term ‘Aposematism’ (Greek ‘apo’ = from, ‘sema’ = sign, i.e. ‘warning off’) for this kind of warning coloration. In the case of the ladybird, they have bitter, foul-tasting or toxic chemicals in their bodies sufficient to make any predator gag, spit them out, and remember not to eat them again. This doesn’t necessarily save the life of the one they learn on, but it’s good for all the others. Each foul-tasting animal gets a better chance of not being tried out as a meal if it looks as much like other foul-tasting animals that predators may have had a bad experience with already. The result is Müllerian Mimicry (yeah, another famous Victorian zoologist) in which the vile imitate the vile as closely as possible. This is why bees look like wasps which look like bees: they all do better if they have the same obvious ‘don’t mess with me’ look.

2-Spot Ladybird, on the same bush
A native 2-Spot Ladybird, on the same bush

The Harlequin Ladybird is big and bold, advertising itself fearlessly. It is spreading rapidly through Britain, having been unknown here not many years ago. It hasn’t totally displaced our native ladybirds: in fact, my Blackcurrant bush is also home to several 2-spot Ladybirds, much smaller and red all over but for one big black spot on each wingcase. The Harlequins are so called because they have many possible patterns, from much like a 12-spot Ladybird to almost entirely black (the odd red patch remaining), but they always have quite a lot of white on the head, which the natives generally don’t.

A nearly-black Harlequin ladybird
A nearly-black Harlequin ladybird… one species, whatever the pattern

As if that wasn’t enough, several small rather triangular true flies (Diptera) are displaying on the same bush; these are probably males waiting for a mate. They lack the ‘pictured’ wings of the Celery Fly – I’ve got those too, worse luck, though they are pretty little insects, and it’s curious to see them in a mating pile-up, as rival males fight to get the female. What she thinks of it, nature does not relate.

All you have to do to enjoy diverse insect life in your garden is … not to spray. In fact, the insects I’ve seen today are a good reason why spraying is a bad idea. The ladybird larvae are powerful predators of aphids, while the Ichneumon ‘flies’ (parasitic wasps) are valuable biological controls of many damaging species of moth, killing their caterpillar larvae. In short, they are the gardener’s friends.

That’s a lot of the world on a leaf. Or at least, a lot of evolutionary ecology for a May Bank Holiday weekend.

Gardening

Sissinghurst Castle Garden: Nature or Art?

Sissinghurst's formal structure, informal planting
Sissinghurst’s formal structure, informal planting

We had the enormous pleasure of a spring day at Sissinghurst Castle Gardens, the six acres of superbly beautiful English garden deep in the Weald of Kent, complete with mellow red brick and oast houses.  It’s a celebration of nature as perfect as any botanical garden.

Whatever the structure of their curious marriage, Vita Sackville-West and Harold Nicolson collaborated perfectly on the Sissinghurst gardens, Harold working with ‘bits of paper and rulers’ to create the garden’s design, or in today’s inflated language its architecture, while Vita got to work on the actual planting, and continued to work in the garden – as well as writing a gardening column and numerous books from her study in the castle tower – for the rest of her life.

Sissinghurst tower and yellow garden
Sissinghurst tower and yellow garden

Harold by no means always agreed with Vita on the planting – but being Vita, and on the ground, she generally got her way with that – but they completely agreed on the contradictory principle of the garden, ‘the strictest formality of design with the maximum informality in planting’. This can be seen to be the reason why the gardens seem so fresh, and so English, today. The lines of the garden are razor sharp: crisp hedges, straight or circular paths, walls, arches, there is no ambiguity about the formality of Sissinghurst’s design. But Vita’s blazing colours and wealth of flower forms riot joyfully, insistently, triumphantly in and out of Harold’s ruled lines.

Here in Britain we are by now very familiar with the idea of wildness and rebellion in gardens; Lord Burlington introduced the daring approach by bringing William Kent back from ten years of study in Italy – along with knowledge of strictly formal Palladian architecture – to make Chiswick House and its gardens something for everyone to envy. To appreciate how revolutionary this was, think of a traditional French garden like Villandry, all stiff little hedges and formally planted flowers. Gardens used to be places of order and control, with wild nature outside the castle grounds. England was different: by the eighteenth century, the home counties were visibly tame, all straight hedges, parklike Oaks and Elms dotted about, and short well-controlled grass for the peacefully grazing animals. If the countryside looked like a park, then the aristocrat’s garden needed to look like a wilderness, and William Kent’s ingenious ‘river’ – complete with bridge and waterfall – along with Chiswick park’s bushy woods and wild-seeming vistas, gave just the right impression of rampant nature.

A Sissinghurst vista
A Sissinghurst vista

Sissinghurst does something different. Outside the garden, the Kentish woods are properly wild, if coppiced for centuries, so the garden has no need to pretend to be a wilderness. Instead, it celebrates the interplay of the natural and the man-made; there are vistas with brick walls and regular buttresses; cottages; the castle tower; pleached lime trees; paths and ‘doors’ between what Gertrude Jekyll called garden ‘rooms’. But in and around this structure, Vita’s plants climb the walls, draggle down them, or burst out above them in every shape and colour. Each view is carefully contrived, but a surprise for each visitor, fresh on each spring day, glowing with blossom, healthy with new leaf. As Harold Nicolson said, they had created a work of art. With nature, of course.

Gardening, Natural History

Bicycle Birding without Binoculars

Birding on a Bike without Binos, how is that possible? My mind fogged by editing, I took an hour off and cycled down to the river to get some air, space, sunshine and nature. It was a lovely bright spring day. A holly blue butterfly flew about the garden, and a buff-tailed queen bumblebee crawled about the grass looking for a hole to nest in – she was certainly a queen as she was very large, and she’s the only form of her species that is actually buff tailed, the rest are white tailed.

Coots, 3 cootlings and an egg in Chiswick Park
Coots, 3 cootlings and an egg in Chiswick Park

In Chiswick Park, a pair of mallard had at least six ducklings: the adults sat on the bank, with probably one more duckling (no binoculars today) while the six adventurous ones paddled nimbly about in circles not too far away. In the midst of William Kent’s carefully landscaped ‘river’ (a long narrow pond) was a coot’s floating nest; the sitting parent got up while I was watching, revealing three cootlings and one unhatched egg in the nest. A blackcap sang sweetly from the trees.

Down by the river, a solitary great crested grebe swam against the tide, glinting white in the sun. Goldcrests squeaked from the cypresses by the boathouse; allotment owners worked their patches of ground. A small tortoiseshell butterfly flew swiftly past the barbecues which were grilling kebabs. It did feel like spring.

Conservation, Gardening

How to Prune a Fruit Tree

Ice patterns in puddle, Huckerby's Headows
Ice patterns in puddle, Huckerby’s Headows

I arrived at Huckerby’s Meadows in the crisp early morning. No, I hadn’t heard of it either: it was round the back of the industrial estate at Cranford, squeezed in between the edge of London and the perimeter of Heathrow airport. The puddles were interestingly frozen, the looping pattern suggesting successive stages of freezing.

Wheels down: right under the flight path at the end of Heathrow's north runway
Wheels down: right under the flight path at the end of Heathrow’s north runway

The meadows have miraculously survived untouched by the rushing development all around them. In fact, it protected them – nobody wants to live exactly under the end of the flight path, just before the planes drop over the airport fence and shriek to a halt on the runway; and the airport itself may well have had designs on the land, buying it up just in case, but not sure what to do with it. Huckerby’s meadows are now leased by the airport authority to London Wildlife Trust. It discovered a hidden corner of England, taken over by wildlife: I saw muntjac deer prints, jays, a green woodpecker, mallard ducks, a singing song thrush, and fieldfares chattering in the hedges.

A carpet of crab apples - surely there for a reason
A carpet of crab apples – surely there for a reason

The meadows had become seriously overgrown with brambles, creeping across the grass from the hedges. Volunteers have now cleared most of them, revealing a curious sight: the meadows contain a large number of big, old crab apple trees in their midst, nowhere near the hedgerows, so they must have been there for a purpose. A possible clue is in the carpet of fallen crab apples: perhaps old Huckerby found them useful fodder for his pigs? The crab is so sour that it is barely suitable as human food – crab apple jelly about covers it – but pigs will eat them as a change from the swill they were presumably fed on, in those days.

We volunteers had been lucky enough to get a place on a fruit tree pruning course, run jointly by London Wildlife Trust and the London Orchard Project. The course tutor, Bob, had come down from Norfolk to get us up to speed. The pole saws we had to use were remarkable, extending to 12 foot long, with a viciously sharp curved saw at the far end – think of the scythe in the hands of the black-cowled figure of Death, and you have the general idea. Bob effortlessly lopped off an offending branch ten feet above his head. We wore awkward goggles and hard hats; fresh, sharp-edged sawdust falling in your eyes means an instant visit to casualty, and of course as you saw something and look up, that’s just where the stuff is going to fall.

Er, how do I hold this? LWT volunteers trying out pole saws for the very first time
Er, how do I hold this? LWT volunteers trying out pole saws for the very first time

Bob explained remedial pruning; you don’t want ‘a tree on top of a tree’, a new vertical shoot rising from the end of an exposed branch, or the tree will get topheavy and split. You can’t just hack away: the tree will go into emergency overgrowth mode if you cut away more than 20% of the branches in a year. If an individual branch is heavy, just slicing away from the top means it will split when you are halfway through, letting wet and fungi into the wound, so it is best to cut in stages, reducing the weight by cutting smaller branches further out. Then you can cut the main branch part-way through from the bottom, finishing off from the top for a neat job, a cut surface that will shed rainwater cleanly. And you want to shape the tree neatly, with no crossing branches: they should radiate out tidily, giving each other space. Suddenly there was a lot to think about, and we looked at trees with newly informed interest. Then it was time to try it for ourselves. It was a lot harder than watching Bob do it; the poles were tricky to manoeuvre through the tangle of branches, the sun was in our eyes, and sawing at a distance felt nothing like holding a handsaw. But with supervision and encouragement we got the hang of it, and were soon bringing sizeable lumps of wood safely down to earth.

Bob also answered our questions about fruit trees – I needed something to pollinate my Cox’s Orange Pippin apple as it wasn’t bearing much fruit. The pollinator needs to be a suitable variety, so the flowers are open at the same time and the pollen is not rejected as being the same – Coxes do not self-pollinate. Lord Lambourn, for instance, is a good choice, as it is a useful cooking apple to complement the sweet eating Cox, and the two varieties pollinate each other as the bees fly about the garden visiting flowers.

By the end of the day, I had learnt a great deal, realising that I was only just beginning to grasp the rudiments of a fascinating subject. Maybe I’ll try grafting next year.

Gardening, Wildlife

Upside-down Seasons

A barbecue in early March in cold, grey, foggy London? Surely not. But yes, that’s just what happened yesterday – not grey fog but grilled fish, right in my garden. The sun blazed down from a cloudless sky; shorts and a sun-hat were in order. The barbecue was damp and full of old ashes from months of disuse. I emptied the mineral-rich grey ash on to my spinach bed, in the hope that some of the potassium will still be there to help the veggies along (potassium, potash, pot-ash … that was the reason for the name). Then I collected some tinder-dry dead twigs from the vine that grows on the fence, snapped them into short lengths, lit a pine-cone and arranged some charcoal all around. It smoked a bit but eventually lit, and quite soon was hot enough for the fish. A barbecue next to the first daffodils of spring – actually next to some outdoor hyacinths and primulas too. The cooking was accompanied by a group of magpies – there is a family of 7 of them living in our road, with a big twiggy nest in the tallest tree. They seem to offer intense predation pressure, yet the small birds – blue and great tits, dunnocks, wrens, blackbirds, robins – survive and breed successfully. They must be good at hiding. As for the weather, it does feel like yet another piece of evidence of out-of-season behaviour. Climate change? Who knows. But the weather is becoming predictably unpredictable – anything goes, except the ordinary. It reached 20 Celsius, by the way.