Linescapes: Remapping and Reconnecting Britain’s Fragmented Wildlife by Hugh Warwick

This year, I have set myself the very modest challenge of reading 12 books about my field. Not limited to horticulture, I’m excited to explore more nature writing, conservation literature and – unexpectedly – books about animals. When you change career, it can be tempting to develop tunnel vision for your new industry, but it is important to explore the periphery too. So to kick this off, I have done exactly that.

In this book, ecologist and hedgehog expert Hugh Warwick uncovers the history of the lines that have fragmented British land, from the reaves in Dartmoor dating back 3,500 years to the rail network cutting a patchwork pattern in all directions. While anyone with a modicum of interest in conservation will be familiar with the high-profile challenges we are currently facing, habitat fragmentation is not nearly as mainstream, considering its enormous impact.

Habitat fragmentation is a fairly straightforward issue – when impenetrable man-made structures such as fences, canals and train tracks are put in place, once sprawling land becomes finite. Resources become depleted, predators face more competition and animals may be forced into urban settings to find food, a mate and shelter.

Fragmentation is much more complex and has bigger implications on the delicate network of nature for me to explain, but when I first started reading this book, I was acutely aware of the parallels that exist between fragmented wildlife in Britain and the ever-narrowing plains in sub-Saharan Africa. Urban expansion – and the consequential transport and energy infrastructure that comes with it – have forced animals into land that shrinks year by year.

When I think about some of the issues I am most interested in, they all come down to the same thing: the natural order has been disrupted. Where animals once fed on vegetation as they moved through the land, boundaries now keep them confined to a space with limited resources to feed growing populations. We often see this as a driving force in elephant culling. Vegetation is destroyed faster than it can recuperate and this leads ecologists to deem a cull necessary – to protect the plants and maintain the ‘delicate balance’.

Let’s just say I have questions.

  • What if we used a variation of crop rotation, a familiar vegetable growing technique, to give the soil, trees and organisms a chance to recuperate?
  • Would it be possible to ‘rotate’ these animals around different parts of the larger nature reserves?
  • Would this allow the important vegetation time to recuperate?
  • Does it need to recuperate, when we know that dead vegetation created a habitat for a humungous range of organisms?
  • Would all of this simply be creating more fragmentation?

I don’t know, but this book has brought a lot of questions out of the woodwork for me, which I think is the tenet of any good book. So if you saw this in your local bookshop and were on the fence about grabbing a copy, make sure you do. But be warned, by the end of it, you’ll want to rip that fence out of the ground and plant a species-rich hedge instead.

Gardening Journal – Entry 9

Tuesday 29 September 2020

We started the day off with a lovely bit of constant drizzle. Not enough to rain off the day and study from home, but definitely enough to soak you through on your 40-minute cycle in.

We started the day catching up on Learner Journals and updating our time logs. Then we worked for a few hours on stripping out more bedding and soil cultivating, only this time on some raised containers. This was good news for our backs and shoulders.

The rain actually worked in our favour, as by the time we got out there, it had stopped drizzling but the soil was soft enough that the plants came out very easily. I started by removing the edging plants, which were tougher to get out, and then I worked towards the centre. The sub dots were scent marigolds and they came out of the soil really easily. Lastly, we used a border fork to remove the dots: cannas. These were tricker to remove but eventually came out after some teasing. When removing plants from a display, it is important to tap off any excess soil, as this prevents too much soil from being lifted and helps to keep the green waste bags light. We set the cannas aside for one of our colleagues who runs a plant recycling and reusing scheme.

We then used the same border fork to simple dig the containers, lifting and turning the soil methodically across all the containers. After getting the soil level and removing the roots left behind by the plants (and in particular the cannas), we created an edge and swept up.

Then it was back to the study bunker to work on our plant idents and complete some learner journals. Just as we were about to leave, the sun came out for our cycle home. Perfect; still in our wet clothes from the morning!

Gardening Journal – Entry 8

Monday 28 September 2020

Today was a really good day, and a great way to kick off the week. Between pandemic fatigue and not feeling very inspired, I needed a day like this to get me back into the swing of things.

I started off with a litter round first thing, while Laurence worked on stripping out one of the summer bedding displays. Then, we worked on raking off any leaves, stones or pieces of plants removed before. After that we began simple digging.

Unlike single digging – which involves digging a trench as deep as one spit length and backfilling the trench with the next row of soil – simple digging is not as time ( or back) intensive. It involved lifting and turning over the soil. This can be done by thrusting the fork into the soil and flicking it around using the shaft as a pivot. Otherwise, if the soil is more compacted, you can use your foot to push it in to a spit’s depth and lift the soil clear of the ground before dumping it in upside down.

Soil cultivation is important in gardens like the ones I work in, where sites see a lot of foot traffic and, as a result, suffer from compaction. Cultivating the soil also helps to aerate it and allows for gaseous exchange within the soil. When planting bedding – and in particular when planting winter bedding, which requires lower depths for bulbs – it is important to prepare the area by single or simple digging. Otherwise, if you are short of time, a rotavator can be used. Nonetheless, it is important to note that while rotavators quickly cultivate the soil, they cause compaction in the subsoil and should only really be used once per year, either for summer or winter bedding.

Once the soil had been dug over, we roughly raked it to get a decent level before treading. Treading is important in helping the aerated, ‘puffy’ soil sink down somewhat. Without treading, as soon as plants are watered in or it rains, the soil will sink down in an irregular way and could lead to water pooling in certain areas. You tread in by walking methodically across the soil, putting your weight in your heels. It should create almost a herringbone pattern when done correctly.

After that, we began to rake again. Initially, we were raking to collect up any detritus, such as leaves, rocks or dried clumps of soil. I learnt last week at college that you can use your rake to collect together any larger lumps of soil and bash at them with the rake and it breaks them down nicely. It also feels good to give something bit of a bash after digging and raking for two hours!

The final rake is the most important one, and what usually takes the longest. The aim is to create a level. Sometimes, it can be difficult to create a level if digging or rotavating has lifted the soil height too much. In this case, it is best to create a gentle gradient upwards towards the middle, as this will not be noticeable once planted and will help drainage towards the edges.

After lunch we worked on another bed, in exactly the same way. We stripped out and raked off any debris. However, due to time constraints, we used a rotavator to cultivate the soil. At the beginning of my apprenticeship – and on a chaotic day where everything went wrong and the shouting was WAY too much – I used a very old and very confusing rotavator that had about 10 levers too many and had bits falling off it as we used it. (If I have learnt anything in my nine months’ experience it’s that old machinery needs to get replaced).

Luckily for everyone involved, this machine was newer, lighter and very simple to use. Before our colleague started it up, he said, “Just to let you know, it’s quite fast,” and was immediately dragged about 5m into the bed. Important information: this man is the tallest person I’ve ever met and with legs twice as long as mine. Needless to say, I turned it right down to a modest Gear 1 before taking it for a spin.

To get the best out of a rotavator, it is worth bouncing weight down on the handles, as this helps the blades penetrate deeper in the soil. It is also advisable to switch off the blades when moving it back into position, or you’ll give Lili a heart attack as she sees the blades spinning over concrete – and your feet.

After that, we raked – following the same steps as above. Then we called it a day. I’m really glad the weather is changing and making hard work like today much more bearable. I didn’t even break a sweat while digging, raking, rotavating or lugging tools around in a wheelbarrow. I’ve got autumn to thank for that.

Gardening Journal – Entry 7

Thursday 24 September 2020

Today I woke up to the sound of rain on the roof of the boat and I half expected to recieve a message telling me to stay at home and study. (Un)luckily, there was no message and the rain had slowed to our work day started as usual.

This morning we completed some individual risk assessments to ensure that health and safety measures put in place meet our specific needs. After that, we returned to the lavender beds near the river Thames to cut the lavender back to the crown. Usually, this is not advised and only to be done in our circumstances – when the alternative is losing the plant entirely.

The rest of the day has been spent studying and working on Learner Journals, which track specific activities we have done and require researching related topics, as well as a plant profile. For example, when I produced my LJ on planting bedding, I researched colour theory in garden design and focused on a Millet plant.

Tomorrow is a ‘study from home’ day, which means getting another LJ finished and working on some website content. Happy days!

Gardening Journal – Entry 6

Tuesday 22 September 2020

Today was another busy day spent hedge cutting down by the river Thames. We worked on cutting back the Trachelospermum jasminoides, which is attached to a wire frame above beds of lavender.

We used the long-arm hedgecutter to cut the jasmine back to the bed size beneath it, keeping the sides well trimmed. Unfortunately the T. jasminoides above two of the beds was in a poor stte, with a lot of yellowing leaves and plenty of dead branches. These were more tricky to work with, as there was less wiggle room when it came to finding the ‘lowest point’ to cut into. Finally, we cut the tops of the jasmine, nonetheless, as it was trained to climb towards an upwards slope, ever bed became more and more challenging to cut, without the use of a platform ladder.

Initially, I used the harness as it is meant to help take some of the weight off the machine and make it easier to manoeuvre. I did not find this to be the case, as the harness was too big for me and did not fit on my back. Instead, it pushed my head forwards when I was working and made it difficult to looking up a the plants without straining my neck. This is another in several examples of manual handling aids causing more issues. Eventually, I used the machine without the harness and – while this made it a lot tougher on my arms and shoulders – it helped my keep the lines (and my neck) straight.

We worked on these hedges for four hours straight and by the time we had finished, we were absolutely shattered. Bear in mind, this included lugging the machinery, cones, green bags, 150m of hose and the rest up and down two flights of stairs; hello manual handling hazard! Just when our arms were about to give out, we lugged more wheelbarrows about to cut the lavender under the jasmine. The lavender is on its last legs – and quite leggy at that – so we gave it a hard prune back. It usually isn’t advised to cut back into the woody part of the plant, however, it can be a way of extending its lifespan, when left unpruned for years.

This week so far has been very hard on our bodies and I’m full of aches and pains again, like I was when I first transitioned into this job! I’m not sure how a whole day of practicals at college is going to go tomorrow but I can’t wait to see our class and tutor again and work on a different site. In the meantime, keep my arms and shoulders in your prayers.

Gardening Journal – Entry 5

Monday 21 September 2020

After a lovely but busy weekend, waking up this morning was a bit of a struggle and I feel like the fogginess of the morning stuck with me throughout the day.

Today, we kicked off the week with a litter round. Seeing as the country feels days from a huge lockdown, people went ham with the public drinking last weekend and we collected two full bags of rubbish.

After our first break of the day, we went back to Greyfriars to finish cutting the low Euonymus japonicus hedge. I also worked on three Ilex topiary balls and managed not to make them look like eggs on their sides like last time!

This afternoon, we spent some time cutting six Taxus baccata hedges. When cutting Taxus, you tend to cut at an angle, creating a wider base and a tapered top. This allows more sunlight to reach the base of the hedge, encouraging vigorous growth and promoting overall health for the hedge. As the hedges were almost as tall as me, Laurence worked on the tops of the hedges using the long-arm hedgecutter and I cut the sides with the normal hedgecutter.

I’m starting to feel more confident cutting different species and heights of hedges and if the feeling in my arms right now is anything to go by, I’m going to be JACKED by the end of this apprenticeship.

Gardening Journal – Entry 4

Friday 18 September 2020

Fridays are always busy, even though I only work until 12:30pm. This is because on Friday I go to the launderette to do our washing and catch up with any work I’ve missed during the week. 

Today we had a discussion about COVID concerns for the team in the morning and then Laurence and I went on our litter round. Since our litter round was shortened a few months ago, it usually only takes about half an hour to complete. As such, we treated ourselves to a coffee before our tea break and looked through some of our plant idents. 

After tea, I worked with my supervisor on some of the raised lavender and Trachelospermum jasminoides beds. As we didn’t have much time, we worked on the lavender exclusively and will start cutting back the T. jasminoides next week. 

When left unpruned, lavender becomes leggy and woody and eventually, very little of the stems bear flowers. Usually, lavender has a lifespan of four to five years. In order to encourage the lavender to produce some new growth and extend its life, we cut back all the diseased, damaged and dead before pruning back to any new growth at the base, keeping any remaining stems to 5-10cm. Hopefully in a few months, we will start to see some fresh, new growth and we can wait a few more years before having to replace the plants. 

After I finished at work, I spent the afternoon wrapping up some of the assignments I didn’t have time to finish on Wednesday. This included my assignment on Health and Safety legislation and the costing of planting five different species of hedge. I particularly enjoyed working on the latter, as it was fun to work on a hypothetical gardening project.

Gardening Journal – Entry 3

Thursday 17 September 2020

Today was a bit of a stressful one, as we may have a COVID case at work. With no testing available in London, it’s a waiting game – my least favourite. I worked on hedgecutting, which I have done a couple of times before. However, this time I used a long-arm hedgecutter, which was new. This also involved getting into the the harness contraption that helps take on some of the weight of the machine. All in all, it was a good day of learning, albeit quite tiring.

The long-arm hedgecutter helps you cut taller plants, such as the Trachelospermum jasmioides we worked on that was climbing a tall structure. You can adjust the angle of the arm to help to reach tight spaces and avoid bending too much. I found it a lot more fiddly to work with that the usual hedgecutters I’ve used in the past. This was largely due to being smacked repeatedly in the face by a dangling carabina I couldn’t reach.

We were also working on trimming some of the Euonymus japonicus low hedge we had planted in winter. I found this one a lot trickier to cut, as it was only about 30cm tall. I eventually switched from using the long-arm hedgecutter to the normal one, which made it a lot easier to level out.

Finally, I was given the chance to trim an Ilex topiary ball. As I was using a hedgecutter, it was not as precise as I would have liked but I managed to make a general sphere shape. It didn’t help that the holly was in very poor condition, with quite a lot of defoliation due to underwatering. This produced a less compact hedge, which didn’t provide any bounce when cutting it.

All in all, I enjoyed using a new machine, however, I think I definitely need more practice using both the harness and the long-arm hedgecutter.

Gardening Journal – Entry 2

Tuesday 15 September 2020

We were back at the park today, and it was absolutely roasting. There were moments where I could even see the swirls and waves of hot air coming off the sports pitches! The person training us was at one point wearing four layers, including a gilet and some black plastic waterproof trousers. It was hot just to look at him!

Today we worked primarily on line marking. This involved overmarking a football pitch, both ‘eyeballing’ by using the previous line as a reference, and the more precise string and stake method. We used a manual line marker and the typical watered down white emulsion paint typically used for this job. The line marker works using three rollers that are in contact with each other and pass the paint up from the reservoir and onto the bottom roller, distributing the paint on the grass. There is a brush feature on the roller, which can be used to regulate the amount of paint you apply. On dry days like today, there is no need for a reduction in paint flow. However, if it were a rainy day or the ground was wet, you may reduce the paint flow to 50% or 25%, to prevent the paint from spreading.

To set up the string and stake, you need some string on a line marking reel and two stakes. First, the reel is set up behind the beginning of the line, leaving enough space to work around it. Then the end of the string is pulled to the other end of the line, with a stake in tow. The string is looped onto the bottom of the stake and the stake is pushed into the ground on the corner of where the previous marked line was. You can then return to the reel at the beginning of the line and pull the string taught, to check if the line is straight. Once it is lined up, you can create a slipknot and stake the string at the beginning of the line, keeping the string as taught and straight as possible. On longer lines, it is worth walking to the middle of the line and ‘pinging’ the string, making sure it is not caught on any bumps in the grass.

Then it’s time for the fun(ish) bit – using the line marker! As there are stakes and reels in the way at the beginning and ends of the line, it is best to start about 1m in and work backwards towards the stake. After that, you can turn around and walk the length of the string, making sure the bottom roller is in line with the string at all times. I found it easier to check this by walking to the left of the machine, where the string was more visible, however, some people prefer to walk behind the roller. I’m just not a fan of the penguin waddle you have to do to keep from walking on the fresh paint!

We covered all the lines on the football pitch, including the circle and semi-circles, which had to be overmarked using the eyeball method. For the smaller corner curves, it is easier to lift up the back wheels and simply use the front wheel to keep the quadrant tight.

After that, we got into the maths portion of our day, as we marked out a rectangle for an events area. While it is helpful to know the width and height of the rectangle you are marking out, using Pythagoras theorem is the best way to ensure every corner is at a right angle.

Pythagoras theorem is an equation used to find the length of a triangle’s third side, when you know the lengths of two other sides. The equation is as follows (where x is the unknown side and y and z are the known sides):

x = √y²+z²

As such, when we were told to mark out a rectangle measuring 8m by 6m, we found the square of each side by multiplying 8×8=64 and 6×6=36. Then we added those together: 64+36=100. Finally, we found the square root of 100, which is 10.

This is how those numbers matter when marking out a right angled rectangle: once you have marked out the first line (8m) and staked both points, you take two tape measures, one measuring from the first stake and another measuring from the second stake. You know that the next side you are marking will be 6m, so you can measure this out. Then, you know that the diagonal line will have to be 10m, so you measure this out too. Finally, you pull the tape measures to the point where the 10m and 6m mark are overlapping. This is the exact spot where your next stake has to go. To finish off the rectangle, you simply pull the measuring tapes across to create another diagonal line and line up the 10m and 6m again. You have now staked out a rectangle!

To mark this out with the line marker, you pull a string tightly around the outside of all four stakes and pass the manual line marker around the outside of the string. You can remove the stakes and finish off any bare patches you may have missed.

We also worked on marking out a circle, which is significantly easier and faster! Once you know the diameter of the circle and where the centre of your circle should be, you place a stake in the centre point with some string looped to the bottom of it. Then, you halve the diameter of the circle to find the radius. Our circle had to be a total width of 4m, so we halved this (2m) and marked out this length on the string. Then we simply pulled this string around the stake, followed by the manual line marker, creating a circle with a radius of 2m and therefore a diameter of 4m.

Just as the sun started bearing down on us, we worked on creating a new cricket pitch, as an end of season booking had been made. This involved marking out an area… again. I can confirm that it was way too hot to be remembering measurements and working out squares and square roots, but nonetheless, we persevered. It is important to know the typical dimensions of a cricket pitch, although these can change depending where you work. Usually, a cricket pitch will measure 20.12m long and 3.05m wide, with a minimum of 1.22m behind the stumps. We worked to a width of 3.4m and lined up our wicket area with that of the adjacent pitch.

First of all, we used the string and stake method to mark the two long lines and this area was mowed using a cylinder mower, initially on a higher cut of about 8mm and then on the lowest cut of 3mm. Usually, this would be done over the course of two or three days, to allow the grass to recover. Unfortunately, we did not have much time before the cricket game, as a it was a last-minute booking. One thing that is important to note is that unlike mowing on amenity areas, or even the rest of the cricket square, a cricket pitch must be mown twice over the same line. In other words, there should be no decorative lines like you would find on other turf.

After passing over the grass with the cylinder mower, we used a calibrated frame to mark out the wicket areas. We used two long planks of wood lined up against the frame and sprayed in between the planks and the frame with white line marking spray paint, to create a sharp, straight line. Once everything had been sprayed in, including the middle wicket line, we were finished!

It was a long, but very informative day and I’m glad to be at home. I must say that I’m excited to return to our familiar depot and to not have to cycle across all of London. Nonetheless, I had a great time learning more about sports turf and cruising around the park in a golf cart.

Gardening Journal – Entry 1

Monday 14 September 2020

Today, I worked at a different location – in an actual park! It was my third visit, after a site trip in February and two days working there last week. These work-away days give us some experience on sports turf maintenance, as the sites we work on day-to-day are for amenity use only.

We have just moved our boat to Little Venice so my commute has got significantly longer; instead of the leisurely 15 minute cycle I had started to get used to, I cycled for over an hour today! You know it’s going to be a scorcher when the sun is already beating down at 7am. And it proved to be really hot day – perfect for a spot of toiling outdoors and heavy lifting!

We worked exclusively on the cricket square today, starting our day off with a mix of brushing the turf, watering the drier patches of the cricket pitches and passing over the cricket square with a scarifyer. The machine we used to scarify the turf was a much older model of the one I’m used to. Between spewing out black smoke and flames from the exhaust (yes, actual flames) and its clippings collection box falling off at every turn, I felt myself missing our sleek scarifyer back at the depot!

The purpose of scarifying is to remove a buildup of thatch, which has a series of negative impacts on the sward such as not allowing rainwater to penetrate through to the soil and encouraging weeds and moss. Scarifying also cuts through the grass rhizomes on the soil surface, creating a stronger sward while also very lightly aerating the soil. Scarifying usually takes place at the end of the cricket season as part of the turf renovations. In the UK, this tends to be around September, when the football season really kicks off.

Following that, we worked on aerating the cricket square (excluding the pitches with less grass on them). We used a Groundsman spiker with solid tines. This is the first time I had used this brand of machine and I found it uncomfortable to work with, although doable. This, in part, was due to the hardness of the ground as a result of the warm, dry weather. Although we had watered the area beforehand and allowed the moisture to absorb over our lunch break, the ground still felt solid. This led to a lot of vibration and enough shaking to make your arms buzz for a good 20 minutes after. In some very dry areas, the machine actually rocked from side to side with the shaking. Maybe it was a combination of the heat and not enough sleep but Laurence and I couldn’t stop laughing at the sight of the aerator bouncing around the corners.

We used solid tines as we wanted to reduce the compaction in the soil resulting from a season of use in cricket games. Tomorrow, we may have time to use the machine with hollow tines, which remove cores from the turf, allowing for even more aeration, as well as creating an ideal environment for top dressing.

Last week, I spent two days at the site working on the cricket square and marking out a football pitch. I found it really helpful to use the line marker and set up a pole and string to get the line perfectly straight.

I’m excited for tomorrow, as I heard that we may be using the roller machine, which I have used once before. Why is it so much fun to drive a vehicle with a steering wheel knob? I don’t know. Maybe it’s the casual elegance of it. What I do know is that I need to improve my reversing when I have a go on it next as I was all over the place last time!