Disclaimer: The views and opinions expressed in this article are those of the author and do not necessarily reflect the views of the Arboricultural Association.

Share this story


#ARBatwork #ArbMatters #PledgeLessPlastic & 12 Faces of Arb 1987 storm 2 Rope 2018 30 Under 30 3ATC 3ATC UK Open 50th annual AA AA award AA Awards Aboricultural Association Accident accreditation advice AFL aftercare AGM Agrilus Biguttatus aid air quality Alert Alex Kirkley All Party Parliamentary Group on Horticulture amenity Amenity Conference Anatomy Ancient Tree Forum Annual Awards APF APF 2020 app APPGHG application Appointment apprentice apprenticeship Apprenticeships Approved Approved Contractor Approved Contractors ARB ARB Approved Contractor ARB Approved Contractors ARB at work ARB Magazine ARB Show arb training ArbAC ARBatwork ArbCamp Arbor Day Arboricultural Association Arboriculture arborists Arbsafe Ash Ash Archive ash dieback Asian Hornet Assessments atf ATO Australia Autumn Review award Awards Barcham Trees Bark Beetle Bartlett Bartlett Tree Experts bats beetle beyond ism Bill Matthews biochar biodiversity biomechanical biosecurity Book Prize Book Shop Books Bookshop boundaries branch Branches brand Brexit bs5837 Budgeting Tool bursary business Call for Abrstacts Call for papers Campout Canker stain of plane carbon career Cavanagh CCS Cellular Confinement Cellular Confinement Systems CEnv CEO Ceratocystis Ceratocystis platani chainsaw chalara charity Charles charter Charter for Trees Chartered Environmentalist chelsea Chelsea Flower Show Claus Mattheck climate climate change climber climbing Cofor Colleges committees competition competiton conference Confor conifers conservation Consultant consultation Continuous Professional Development Contractor Contractors Cornwall Cornwall Branch Coronavirus Coroner Council Countryside Countryside Code Countryside Stewardship Course for beginners COVID-19 CPD cross industry news Crown & Canopy Cryphonectria parasitica Cumbria DART Date for your diary deadwood death debate Debt defra Design Devon Director disease diversity document donate dothistroma downloads draft Dutch elm EAC East Anglia ecology Economic Report economy Ecotricity education EFUF Election elections Electricity Elm yellows Emerald Ash Borer England England Tree Strategy English Elm environment environmental EPF equipment Europe European Arboricultural Council European Forum on Urban Forestry European Wood Pastures Event exeter Exhibitors Fall from Height Fatal Fatality felling Fellow Fellow Members Fera Field Trip Finance Fine firewood First Aid flood flooding for Forest Research forestry Forestry Commission forests freelancers FSC Fund4Trees funding fundraiser fungal fungi Future Flora Futurebuild gardening GDPR Geocells Gold Medal Gov.uk government grant grants Green Brexit Green Infrastructure Green Infratructure Guarantee guidance Guidance Note Guidance Note 2 guide guides Hazard Tree Health heart-rot hedges Helliwell Help Henry Girling Henry Kuppen History HMRC HOMED Homeworking Honey Brothers honours Horse Chestnut HortAid horticulture horticulturists HortWeek housing HRH HRH Prince Charles HS2 HSE HTA ICF ICoP identification Immigration import industry Industry Code of Practice industry skills Infographic InfraGreen Initiatives Inspiration Insurance Intermediate Tree Inspection International Urban Forestry Congress International Women’s Day International Year of Plant Health Investigating Tree Archaeology Conference Ips typographus Irma irrigation ISA iso i-Tree IUFC IWD21 Job job opportunity judgement JustGiving Karabiner Kew Kit land-based Landsaping Landscape Institute Landscape Show landscaping Lantra law Leaf Minor Lectures legal legislation Letters Liability licence London longevity LTOA Magazine manifesto maple Mayor of London MBE Melbourne Member Benefit Membership mentor Midlands moth' motion Myerscough NASA National Geographic National Tree Safety Group National Tree Week NATO Natural England NatureScot Netherlands New Year’s Honours News NHS nominations Northern Northumberland Notice notification NTIS NTOA NTOC NTSG Nurseries oak 'oak Oak Processionary Moth Oak-boring Beetle obituary Observatree occupation online opm Padua Papua parks parliament Perennial Pests & Diseases Pests and Diseases petition photo Phytophthora planning Planning Law Plant Health planting Plantsman Pledge Plumpton College policy poll Poster Power PPE Preston Twins Prince Charles Prince of Wales processionary Product Recall Professional Members prosecution Protect and Survive protected tree protection Qualifications Quotatis ramorum RC Reg Harris Registered Registered Consultant Registered Consultants Rememberance Day renewal REnvP Report Rescue research Research grant Resilience response results retrenchment review RFS rhs RHS Chelsea Flower Show Ride for Research Ride4Research rigging Rodney Helliwell rogue tree surgeons Royal Forestry Society RSFS Safe Working Practice Safety Safety Bulletin Safety Guides Saftey Sale school Scotland Scotland Branch Scottish Branch SDG Accord security seminars Share Sheffield Show Sierra Leone Site Guidance skills skills survey SocEnv soil soils South East South West SRT SRWP staff Standards statement Stationary Rope Stationary Rope Technique statutory STIHL strategy student Student Book Prize Student Conference Study Trip Sub-contractors Supporter survey Sustainable Soils Alliance Sweet Chestnut sweet chestnut blight symposium T Level T Levels Tatarian maple TDAG technical guide Technical Guides Technical Officers Technical Team Technician Members Technology Ted Green tender Thames & Chiltern The Arboricultural Association The Woodland Trust Thinking Arbs Thinking Arbs Day Timbersports Tony Kirkham Tools top-handled chainsaws,Elcoat, TPBE4 TPO Trading Standards trailblazer training transport Tree Tree Care Tree Champion Tree Council Tree Fayre Tree Health Tree Health Week Tree Inspection tree loss tree management Tree of the year Tree Officer Tree officers tree planning Tree Planting Tree Protection tree register tree species Tree Supply Tree Surgeon Tree Surgeons Tree Week Tree Work at Height Tree Workers Zone Treeconomics tree-felling TreeRadar trees trees' Trees & Society Trees, People and the Built Environment trust' trustee Trustees TrustMark Two Rope two-rope UAG Uitlity UK favourite ukas UKWAS urban urban forest Urban Forestry Urban Tree Challenge Urban Tree Challenge Fund Urban Tree Cover Urban Tree World Cup urban trees Utility Arboriculture Group UTWC vacancy VETcert veteran trees video Videos Virtual ARB Show volunteer voting VTA WAC Wales Warning Watering watering solutions Webinar webinars website Western Westonbirt Wharton White Paper WIA Witley Women Women in Arb women in arboriculture woodland Woodland Carbon Code Woodland Carbon Guarantee woodland trust woods Workshops World Environment Day Xylella young young arborists Young People’s Breakfast Event zoo

Northern Branch at Yorkshire Arboretum

Author:  Tim Beckley
Last Updated:  03/12/2019

In July the Northern Branch visited the Yorkshire Arboretum at Castle Howard in North Yorkshire. A total of 34 members were given an extensive guided tour around the 120-acre (48-hectare) site by the Arboretum Director, Dr John Grimshaw, and Collections Manager Jonathan Burton.

Dr John Grimshaw showing Northern Branch members the Wollemi pine (Wollemia nobilis) which was discovered in 1994 in New South Wales, Australia. (photo: Jo Ryan)

Dr John Grimshaw showing Northern Branch members the Wollemi pine (Wollemia nobilis) which was discovered in 1994 in New South Wales, Australia. (photo: Jo Ryan)

The arboretum was founded in 1979, with the first plantings of trees carried out by George Howard and James Russell. In 1996 the Castle Howard Arboretum Trust was established by the Castle Howard Estate and the Royal Botanic Gardens Kew. The trust holds the site on a 100-year lease from the estate. The trust also manages the woodland garden in Ray Wood at Castle Howard.

The arboretum is very popular, with visitor numbers increasing every year. It contains over 6,000 trees of more than 1,200 different species from the various temperate regions of the world. Species originating from North and South America, Europe, Asia and Australasia are represented in the extensive tree collection. Much of the original planting stock came from Hillier’s Nurseries. Many of the species planted at that time are now rare in cultivation. Since then this notable tree collection has expanded and developed considerably, and the majority of the species now planted come from seed collected in the wild. This wild source material is of great scientific importance as it demonstrates the wide variation and genetic diversity of wild tree populations around the world.

The arboretum’s website now contains a very comprehensive database of the entire tree collection and an interactive map enabling the locations of the trees to be identified by those wishing to find and study them. The practical management of the arboretum is aided by a large number of regular committed and knowledgeable volunteers who carry out a wide range of tasks across the site.

Strong links with Fera Science Ltd and the Animal and Plant Health Agency have been forged in recent years. Both of these organisations are based at Sand Hutton, which is close by on the outskirts of York. John and his professional team are engaged in strengthening these links. The new innovative Tree Health Centre, shortly to be built adjacent to the existing Visitor Centre, will be used to provide a wide range of training courses and other educational functions. It will be a key asset in providing exciting developments for the successful future arboretum.

On our tour of the arboretum John and Jonathan showed us numerous interesting and notable specimens in the collection. For example, we saw many interesting oak species including Quercus canariensis (Algerian oak), Quercus dentata (Daimio oak), Quercus mexicana (Mexican oak) and Quercus nigra (water oak). I would encourage any tree enthusiast to visit the Yorkshire Arboretum.

This article was taken form Issue 187 Winter 2019 of the ARB Magazine, which is available to view free to members by simply logging in to the website and viewing your profile area.