“The BestGarden TunnelI’ve Seen!” Ron MacFarlane

National Vegetable Society Judge

T h e U l t i m a t e i n T u n n e l G r e e n h o u s e s

and ThankYou forrequesting ourGardenTunnels brochureHaygrove are established soft fruit growers producingstrawberries, raspberries and cherries, mainly organically, attheir farm near Ledbury in Herefordshire. We are majorsuppliers to Marks & Spencer, Waitrose, Tesco and Sainsbury’sand have received a number of national awards for the qualityberries we produce.

In the early 1990’s, exasperated by the lack of quality Britishsoft fruit available due to our unpredictable weather, wedeveloped the Haygrove Tunnel. 20 years on, HaygroveTunnels are used worldwide by commercial growers requiringstrong, quality, innovative crop protection.

The development of Haygrove Garden Tunnels began in 2009.Harnessing our experience in large scale greenhouse structureswith our passion for growing, we aim to provide a qualityproduct, competitively priced and incorporating featurespreviously only available to commercial growers.

We hope you enjoy reading through our brochure and inparticular our customer testimonials of which we are veryproud.

If you would like to talk through any aspects of our GardenTunnels please call us on our local rate number 0845 269 6395.

“I took a long time todecide which tunnel tobuy & I’m sure I’ve gotthe best”

Cindy Carlton,Bicester

“Commercial technologyhas reached the ordinarygardener, well done it’s agreat product!”

Anthony Day,Faversham

Welcome

Structure and VentingStrength

Spring steel hoop clips ensureeasy clipping of the plastic ontothe steel frame.

The Garden Tunnel is built on agalvanised steel base, strongenough to be moved later ifrequired. Thanks to 10 strongvolunteers, this 4m x 8m tunnelis on the move across acustomer’s garden!

The cover is UV treated toensure we can guarantee it forfive years against UVdegredation. The material has88% light transmission meaningit performs better than glass,with a light transmission of 65-85% depending on pane sizeand glasshouse structure.In addition the cover has theability to diffuse or scatter lightas it enters the tunnel. Thismeans the tunnel is cooler in hotweather and plant scorch riskdramatically reduced, as lightpenetrates deeper into theplant’s canopy. This is bestdemonstrated on bright sunnydays when there is littleshadowing in a Haygrove Tunnel.

No concrete base is required,the structure is built on agalvanised steel skid anchoredwith 800mm (2’ 6”) longanchoring posts. In each 2mtunnel section, four steelanchors are driven into theground, each anchor beingmade from 18mmm galvanisedreinforced steel bar.

Galvanised SteelStructureGalvanised steel is usedthroughout the Haygrove Tunnelframe, including doors, sidevents and the base anchoringsystem. The grade of steel isspecified as Z35, the structuralsteel grade used in theconstruction industry and notthe mild steel grades often usedto cheapen products. It isgalvanised to the BritishStandard of 275grams/m2 with aHaygrove Tunnel you are buying astrong, long lasting structure,giving excellent resistance to rustand strong wind conditions. Nowood, No nails, No Nonsense!

Tunnel CoverHaygrove Garden Tunnels arecovered with a unique, highquality, coated woven polythenecloth. With a breaking strengthof 18kg per 1cm2 it’s strongenough to sit on!

SMART Venting SystemRoll-up, roll-down ventilation designed across the complete lengthof each tunnel side. This means the structures can be completelysealed for earliness and frost protection but fully ventilated forsummer production. The net below each vent protects againstinsects such as thrips and whitefly so you can fully vent aHaygrove Tunnel whilst still retaining a pest free growingenvironment. Allows the air in, keeping insects out!

Very impressed with thework rate of theconstruction team.Polytunnel looks verygood, it will be a mostuseful addition to theallotment.”

“We were batteredyesterday on thewest coast ofScotland with someof the highest windsI've felt here in 15years and my wee3m x 4m Haygrovepolytunnel stood upto all the mightygusts. Inside it wasan oasis of calmwhilst trees werecrashing down,ferries werecancelled and roadswere closed. I'mdelighted to reportthat the tunnel is asgood as new.

Alison Duncan,Greenock

Fiona Blakey,Oban, Argyll

“Excellent build andquality.”

Mr & Mrs Williams

Function andFlexibilityDesignDesignHaygrove Garden Tunnels are designed in modular steelsections, simply choose a 2m, 3m or 4m width and add 2msections to the length you need.

The tunnel profile gives a height of over 2m (6’6”) even at thesides to maximise growing space and prevent aching backs!

All tunnels have a 1m wide steel framed door, ideal for largewheelbarrow and wheelchair access.

Steel Frame

Technical Specifications

Steel Outer Diameter (OD)Steel Grade

Galvanisation

40mm (35mm for 2m wide tunnel)

Extra Strong StructuralGrade275g per m2

pre-galvanised steel

AnchoringSystem

Anchor Specification

AnchorsAnchor base plates

800mm length x 14mmdiameter4 per 2m section18mm pre-galvanised steel

Trellising Kit Hanging Basket PointsTrellis cross cables

5 per 2m section2.8mm self tensioningsteel cables

Plastic Plastic WeightLight TransmissionDiffusionBreaking StrengthUV StabilityVenting net weightVenting net mesh size

172g per m2

88%45%>18kg per cm2

5 years warranty80g per m2

0.78 x 0.6mmCreates a pest free growingenvironment protectingagainst insects such asTobacco Whitefly(Bemisia-tabaci), Aphids &Thrips

Options Number of sectionsDoors

Trellising Kit

Potting Tables

Built in 2m modular sectionsAvailable at one or bothendsInternal steel self tensioningcablesAvailable to hang inalternate 2m sections

2 metre (6’6”) Tunnel 3 metre (9’8”) Tunnel 4 metre (13’1”) Tunnel

“Excellent build.Excellent workers,would definitelyrecommendHaygrove to others.”

K Wakefield

tailoredto yourrequirements

2515

2000

30702000

Ventilation800

1000

2000

Ventilation800

655

10002000

2495

2000

4070

2100

Ventilation800

1000200

0

2310

“The Haygrove gardentunnel is strong & robust,Many thanks to theconstruction team fortheir help and guidance,a great team!Highly recommended.”

R Lawerence

Ease and Service

ConstructionThe Haygrove Garden Tunnel isdesigned to be constructedeasily by two people using only a13mm spanner (included withyour tunnel) and a mallet tosecure the anchoring posts.

Construction ServiceAlthough the Haygrove GardenTunnel is designed to be straightforward to build, we appreciatesome customers may prefer topurchase a constructed tunnel.To get a fixed fee quote for theHaygrove Construction Service,specific to your postcode call theoffice or look on our website.Construction is undertaken bytwo trained technicians, whodeliver and build your gardentunnel within the same day. Youdon’t have to provide any toolsor labour although refreshmentsare always welcome!

Plastic Zip-LockingThe plastic is secured by zip-locking into a specifically designedchannel in the steel frame, no burying into soil or nailing intowood. This ensures a tight fitting cover can be easily achievedand allows easy re-skinning when the plastic needs replacing.

“The service provided byHaygrove was absolutelyfantastic - take up theconstruction offer!”

Mrs Payne,Pembrokeshire

“We are delighted withthe Haygrove GardenTunnel and theprofessionalConstruction team.”

Mr & Mrs Friel,Market Rasen

“An excellent job welldone!”

Chris Mountain,Beamish

Features1 HangingBasket Points

2 Steel TrellisCable

3 Hinged PottingTable

4 SMARTVentingSystem

5 All GalvanisedSteel Structureand Anchoring

6 1m wide SteelFramed Doors,for easyaccess

7 Tall SidedDesign,maximisesgrowing area

8 Light DiffusingPlastic Cover

9 Insect ProofGrowingEnvironment

10 UniquePlasticZip-LockSystem

12

34

5

6 7

8

9

10

“I have been intending tocontact you to expressmy appreciation for thework done by your staffin erecting ourpolytunnel. They wereextremely pleasanthelpful and efficient. Mywife, daughter and I arevery pleased with thepolytunnel - it appears tobe a quality product andpleasing in appearance.”

Mr & Mrs Reed,Exmoor

Take a closer lookat Haygrove’sFeatures andBenefits on our

DVD

Welcome

www.gardentunnels.co.uk

Garden Tunnels

Tel: 0845 269 6395

“We are thrilled with thepolytunnel’s quality andthe high standard ofworkmanship”

Mr Green,Knighton

Accessories Schools

Additional DoorAll Haygrove Garden Tunnelscome with one 1m wide steelframed door. An additional dooris available for customers thatrequire a door at both tunnelends, such as with this 20m longgarden tunnel pictured above.

Potting TablesPotting Tables fit into each 2msection and can be positioned ata height to suit you (sitting orstanding). They are hinged tostore flat against the tunnel sidewhen not in use to free up valuablegrowing space underneath.

Trellis CableSelf-tensioning steel rope cablesare available to clip onto thetunnel frame for supportingclimbing crops etc.

A number of schools are working with Haygrove tocreate a fantastic outdoor classroom for pupils of allages. The strong construction provides a lowmaintenance structure with stray footballs bouncing offthe plastic cover without damage! The tall sided tunnelprofile maximises working space with 1m wide doors providinggood access for wheelbarrows, wheelchairs etc. During warmerweather a cooler environment is created by venting the tunnel andthe light diffusing covers take away the uncomfortable glare oftenproduced by other plastics. Not only is this a great way tointroduce children to growing fruit, vegetables and flowers someschools are also selling on their produce, or using it in theircanteen. For those able to claim back VAT don’t forget allHaygrove prices are quoted inclusive of VAT so yourorganisation may well be able to benefit from this. As anadditional help to all schools and charity fund raising projects,Haygrove will add a free potting table to each Garden Tunnelordered, height adjustable for smaller growers!

Haygrove price all their Garden Tunnels as complete units ready to useinclusive of VAT, UK mainland delivery and all unique features such asanchoring, venting etc. We do however have some additionalaccessories such as those shown below that can be ordered with thetunnel and fitted at a later date.

We are always updating our range of Garden Tunnel accessories, for more information please call our local ratenumber 0845 269 6395 or take a look on our web site www.gardentunnels.co.uk

“Fantastic product &service, staff mosthelpful, highlyrecommended”

Ian Wilson,Sowerby Bridge

“A helpful, courteous,flexible & obligingcompany, we are verysatisfied.”

Mr & Mrs Roberts,Shrewsbury

“Completed with minimumhassle, very pleased withend result”

Caroline Munro,Malpas

Park Community School,Wrexham

Frequently Asked QuestionsHow tall are the Tunnels?At the apex - all between 2.3m and2.5m depending on the width.At the sides - all 2m tall, which meansyou can work right to the edge of thetunnel without bending over.

What are the door options?You have a choice to select a door forone end or both ends. All doors aremade in steel and are 1m wide solarge wheelbarrows, gardenmachinery, wheelchairs etc are easilyaccessible.

How long will the plastic last?The plastic is guaranteed for 5 yearsagainst UV degradation, although ourexperience is that growers are using itfor longer.

Do I need hot spot tape toprotect the plastic from thehoops?We recommend placing anti-hot spottape over the section of the hoopwhere they are bolted together. Thiswill prevent any undue wear on theplastic covers. The required amountof anti-hot spot tape is provided withthe covers.

What happens if the polythenegets damaged?The only real way that the polythenewill tear is if someone cuts it with aknife or a very heavy objects falls onit. If you do get a tear we can supplya polythene repair kit.

Will the steel rust?No, all the steel is galvanisedincluding the anchors that are driveninto the ground. The steel frameshould last at least 15 to 20 yearsdepending on how close you are tothe sea.

How do you secure theplastic onto the steel frame?At each end the plastic is securedonto the gable ends using sprungsteel hoop clips. At the base theplastic is zip locked into a steelchannel. These are both proventechnologies used in the commercialgreenhouse business.

How resistant is the Tunnel tosnow?The tunnels are built to withstandany normal snow storm that occursin the UK. We do recommend thatsnow is brushed off the tunnel as aprecaution to stop any further buildup later.

How resistant is the Tunnel towind?Haygrove Tunnels are built towithstand gale force winds of 60mph (90km). Following last winter anumber of our customers who haveour tunnels on exposed sites, havecontacted us to say that theirstructures remained intact at speedsgreater than this.

How is the structureanchored to the ground?No concrete or foundation work isrequired. The structures areanchored using 800mm (2’6’’ long)reinforced galvanised steel bars thatare driven into the ground.There are 4 anchors for every 2mtunnel section.

How much does areplacement cover cost?The covers are about 20% of thecost of the tunnel.

What can I grow in myTunnel?Flowers, vegetables, fruit – prettymuch anything. For many crops,such as strawberries it is possible toextend the growing season from 6-8to 22-24 weeks.

Can I use heat?Yes, the plastic will withstand heat.For the best results we wouldrecommend a plastic baffle or falsewall is dropped from one hoopinside the tunnel to create aconfined space for more efficientheating.

How do I clean my Tunnel?The plastic cover is best cleanedwith water and a soft brush.Heavier dirt can be removed using amild washing-up liquid solution witha cloth or soft brush.

Good positioning of your Garden Tunnel makes abig difference to how it functions. Consider thefollowing when deciding where to site yourstructure.

To maximise light availability, don’t site your tunnel directly undertrees and hedges. Apart from shading, leaves will get onto theplastic covers and allow mould and lichen to take hold. If possibleavoid north facing slopes where light levels are worse. Asheltered site is good to protect tunnels from heavy winds. Thediagram below illustrates the value of windbreaks to reduce thespeed of wind and provide natural shelter for the Tunnel.

For example if the wind break is 3m (10ft) high then the windspeed will be only 25 to 50% of it’s open field velocity up to 15m(50ft) from the wind break.

Wind behaves like water. This means that if thewind is forced through narrower areas it willdramatically pick up speed. Therefore it isimportant, where possible, to avoid building thestructure directly in front of a gateway or gap inthe hedge where the wind will be forced toaccelerate.

A Haygrove Tunnel is much more forgiving than a glasshouse andwill easily work on gently sloping land. However, ensure that anyslope it consistent and not undulating by filling in any dips with soil.

80-90% 50-70% 70-80%

Wind direction

1

25-50%of openfield velocity

Questions “Super service with asmile, fully recommendthis company”

Elaine Middlemass,Suffolk

“Efficientlyconstructed & verypleased with overallproduct and service”

Gillian Beadell,Lincolnshire

“It’s a hellovah greenhousefor the price and wecan’t thank you enough!We can recommendHaygrove to anyone!

Steve & BarbaraWilliams,Somerset

Grower toGrower

Tim Crossman has beeninvolved in fresh produce andflower production for over 20years and is experienced ingrowing to the highest standardsexpected by major UK suppliers.He is also a keen gardener witha Garden Tunnel just outside hisback door! Tim is a regularcontributor to the AllotmentSociety magazine where headvises on growing undercover.

Since graduating from BathUniversity, GrahamMoore hasworked on a variety of horticulturalprojects. He is one of the UK’sleading agronomists specialising inorganic production and is indemand as a speaker on organicfruit growing worldwide. Graham isthe Head Agronomist at Haygroveand is key in the design anddevelopment of the Garden Tunnel.You can follow Graham’s blog “TheFruit Doctor” on our website.

Rolly Whatton is the ProductDevelopment Manager atHaygrove, who combines hisexpert engineering skills with theneeds of our growing andagronomy experts. For allgardeners, small holders andcommercial growers, thedevelopment team ensure youhave a first class productspecifically designed for yourneeds.

Haygrove is committed to responsible farming,whilst maintaining high environmentalstandards and protecting our native wildlife,with almost half of our farm registered withThe Soil Association for organic production.We work closely with independent groupssuch as FWAG (Farming and Wildlife AdvisingGroup) and LEAF (Linking Environment and Farming) who auditour farming operation annually. The business is dedicated totaking positive measures to improve our surroundings, such as:

• Water margin habitatdevelopment aroundfarm lakes

• Responsible hedgerowmanagement

• Planting meadow grassconservation areas toattract insects such asbumble bees

Across the farm Haygrove manages over 4,000 trees including anOak Arboretum, with a 20 year environmental plan to plant manymore native species.

Haygrove are first and foremostgrowers with an establishedtrack record of producing qualitysoft fruit and flowers.

Uniquely amongst tunnelsuppliers, we can pass on to ourcustomers first hand the benefitsof our experience in growingunder tunnels.

“Efficient, hard working andfriendly, can’t fault the staffor the product!”

Abbey Hay Allotments

“Good solid structure,excellent helpful service”

Paul Ravenhill,Wokingham

Tunnel Tips

SpringSpring temperatures can vary enormously with large day tonight variations. Haygrove’s unique venting system allows youto regulate the temperature within the tunnel reducing peaks and troughs.Combining this with insulation and heat during spring allows you to start early planting. As the woven plastictunnel cover diffuses light, tender seedlings have protection from bright spring sun, allowing a strong plant todevelop. Before you can be sure of frost free nights use the hanging basket points to start getting your summerbedding established.

AutumnAlongside improved crop quality andconsistency, the biggest advantage ofgrowing in a protected environment isthe ability to extend your growingseason. The blue line on the graphshows the temperature achieved within aHaygrove Garden Tunnel, compared withthat outside (green line) during a day inOctober. At 2pm the internal temperaturewas 6°C higher than that outside thetunnel and with insulation this heat canbe easily retained to extend the mid-daypeak. There are many improved varietiesdeveloped for autumn planting to allowcropping right through the winter months.

WinterAs daylight decreases don’t forget to clean off your tunnel tomaximise light availability to plants.A Haygrove tunnel doesn’t need specific cleaning products, amild detergent solution and soft brush will do just fine.When temperatures are at their coldest its important to seal yourtunnel, using the hoop clips to secure the side vents to the steelframe. In addition to insulation, for growers who need to maintaina constant heat for sensitive crops additional heating can beused. For those who don’t need to heat the whole tunnel a ‘room’can be made by attaching a plastic baffle curtain to the internalhoops on each 2m section. As well as winter growing your tunnelalso provides a great storage area to overwinter pots containingdelicate plants.

SummerManaging temperature and relative humidity is one of the biggest challenges facing the grower. This may seemremarkable in a British summer but we know that most crops turn off their metabolism when they get too hotand sweaty.In warm weather plants cool down by transpiring through their leaves but when relative humidity increases, theatmosphere’s ability to absorbwater is reduced and so plantsstart to ‘shut down.’ When theoutside temperature is 18°C(average UK Summer) the insideof your tunnel can quickly exceed25°C. This is why as experiencedgrowers we designed tunnels tohave full ventilation along bothsides with a protective thrip netto ensure the fully ventedstructure remains insect proof.Experience will show that evenwhen temperatures of 18°C areforecast growers should reactearly and open vents to ensurethe tunnel keeps cool and yourplants are fully productive.

�#+��

� +��

��+��

��+��

�+��

� �21 October

We have included some hints and tips to maximise your useof a Haygrove Garden Tunnel throughout the year. For moreinformation take a look at the links for growing undercover offthe home page of our website www.gardentunnels.co.uk

“Job well done, verypleased”

Philip Dickinson,Caldicot

“My Haygrove Tunnel hasregularly had 8ins of snowon it over the winter withno detrimental effect”

Colin Mc Andrew,Scottish Highlands

“I’ve been straight in thismorning to start plantingmy veg seeds, it’s reallycold outside but feelsabout 70° in the tunnel;I’d love to stay in here allday!”

Mrs James,Carmarthen

Proven to besnow proof!One of a numberof HaygroveGarden Tunnelssurviving a harshFinland winter

Tel: 0845 269 6395(charged at local rate)

Haygrove LtdRedbank • Ledbury • Herefordshire HR8 2JL

www.gardentunnels.co.uk

Visit a Haygrove Garden Tunnel Near You!We have a large number of customers who are happy to

show their Haygrove Garden Tunnel to prospective buyers.If you would like to visit a tunnel near you please contact

us on the number below to arrange an appointment.

We welcome enquiries from overseas and have anumber of Garden Tunnels established in Europe.

For overseas enquiries please call +44(0)1531 635041

Haygrove is pleased to support the Woodland Trust, the UK’s leading Woodland Conservation Charity.