Blog

Gardens in Highgate London

PGSD was asked to work on two gardens in Highgate, north London, by construction company Heydon & Carr who were converting one house into two separate dwellings.

We designed and planted both of the gardens and installed top soil, turf, trees, shrubs and perennials.

The plants, of which there were several hundred, included: Clematis Montana on 1.5 Trellis; Jasminum on 1.5 Trellis; Parthenocissus on 1.5 Trellis; and Hedra on 1.5 Trellis.

Architectural Shrubs and trees comprised Phormium 5L; Cordyline 5L; Yukka 5L; specimen Japanese Maple; Bamboo 20L pots; Olive tree 1.5m tall; and Betula multi stem 2.5-3m tall.

The borders contain a mix of shrubs, perennials and grasses in 3 to 5 litre pots: Agapanthus; Aster; Geranium; Heleborous; Heuchera; Kniphofia; Rudbeckia; Grasses 5L; Carex Evergold; Stipa Tenuissima; and Semperviren.

M40 motorway vegetation clearance and tree work

We have worked alongside Graham Construction on several projects. They asked PGSD to help with vegetation clearance, tree take-down (including climbing very large trees) and removal of stumps to clear an area for installation of Noise Barriers along the M40 motorway.

Work was started at the beginning of 2018 and is ongoing at several sections of the M40 between Junctions 3 and 8. Some areas are on high, steep embankments above the motorway.

This project included specialist arborist teams; equipment included chainsaws, track chippers, stump grinders and strimmers.

The client received a short lead-in turnaround and availability during night time and at weekends. Additional team members were made available, when required. The client has been immensely pleased with the speed and progress our teams have made. Throughout, PGSD has paid considerable attention to safe systems of working, including completing site-specific Risk Assessments each day due to the differing terrain and conditions.

Tree planting project in Church Street, Leatherhead, Surrey

PGSD was asked to help with a tree planting project in Church Street, Leatherhead, Surrey. This was a high profile job working alongside Mole Valley District Council.

Initially, the trees supplied were too large, which meant that we had to reject them as they would not fit in the tree pits designed and built by main contractor.

We planted four Box Head Lime trees. The new trees were anchored underground with irrigation pipe, back filled with tree sand.

The trees will enhance Church Street for many years to come.

Line marking service for schools

We were asked to smarten up the lines on the sports playing courts at St Mary’s School in Hertfordshire.

The work included four tennis courts, three football courts, as well as four basketball courts.

PGSD is always happy to help when it comes to marking sports surfaces, including running and athletics tracks and playing courts. This can include cleaning, marking and maintaining sports surfaces all of which makes it that much easier to decide who has won that all important point!

St Mary’s is an 11 – 19 co-educational, comprehensive school with Academy status and an admission number of 240 for each new Year 7 cohort. The school is one of four Church secondary schools in Hertfordshire within the Diocese of St Albans. The school is well recognised in the local community for its high quality provision and outstanding inclusion agenda.

Johnson & Johnson tree care

Johnson & Johnson had a semi mature oak on their grounds close to their only pedestrian access footpath to their site.

PGSD identified a suspect looking pair of cavities on the trunk of the oak. We recommended that a Resistograph was undertaken which would show, via the resistance of penetrating a special drill bit, if there were any cavities within the trunk. Having undertaken the Resistograph we recommended that the tree needed to be removed as a matter of urgency.

Having already undertaken a TPO check with the local authority, the PGSD tree team was deployed the following day to dismantle the oak tree and leave the wood stacked in habitat piles.

Once the tree had been dismantled, we were able to see the extent of decay present within trunk. The cavities and decay were on the sweet spot of the trunk. This is the worse place the decay could have been as this section is where the greatest amount of stress is placed on the tree.

The amount of decay present had a diameter of 40cm, the diameter of the tree was only 60cm, the linear length of decay was approximately 200cm.

Thames river bank Chiswick, Hounslow Council


We were asked by Hounslow Council to visit the site to clear the sloped concrete river bank leaving 20% of the foliage for cover. The project included pollarding (i.e. pruning, during which the upper branches of a tree are removed; the result is a dense head of foliage and branches) two large London planes to allow light to reach the Chiswick shore trust building.

In addition, we cleared an area to prepare for some foliage to be treated. The trees required a considerable amount of man power and experience as we needed to rig large limbs into the bank and over the rail. However, our Smart winch lowering device made easy work of this, helping the team to work safely and efficiently.

CVU West Cromwell Road

 

Over the past 12 weekends, we have been attending West Cromwell Road for a large job of repollarding 13 fully mature London Plane trees (Platanus ×acerifolia).

Most of the trees were touching properties, so we had to use all of our experience to lower, and speed line the branches over the wall, therefore avoiding properties and garden furniture.

CVU is a joint venture between VolkerHighways Colas and AECOM and is currently delivering the Central London Highways Alliance Contract (LoHAC) for TfL (Transport for London).

 

Tree pruning at GlaxoSmithKline

We were asked to attend the site by GlaxoSmithKline to reduce 13 small red oaks by twenty percent. The objective was to allow security cameras to see the main entrance. This was a tricky job as the branches we were pruning were very small, so getting out to the best growth point took patience and skill.

GlaxoSmithKline plc (GSK) is a British pharmaceutical company headquartered in Brentford, West London. The company was created in 2000 following a merger between Glaxo Wellcome and SmithKline Beecham.

New build care home horticultural project

PGSD Limited was asked to help with horticultural work by Castleoak for Oak Manor, a new build care home for their client MHA in Shefford, Bedfordshire.

The project included the installation of topsoil, 200mm deep for grassed area, 300mm deep for planters and 500mm deep for tree planting.

It also included

*  The planting of some 2000 plants
*  1000 bulbs
*  1000m2 of turfing
*  Mulching
*  18 semi mature trees
*  150m of post and rail fencing
*  100m of closeboard fence

*  Gates

Oak Manor has been designed to enhance the independence and dignity of residents. Oak Manor is a 64 bedroom care home that provides residential and residential

dementia specialist care with features such as an on-site hairdressers, cinema room and coffee shop.

MHA is a well-established charity with over 70 years’ experience and is one of Britain’s most respected care providers. MHA provides a range of accommodation, care and support for almost 17,700 older people nationwide.

Artificial lawn for Heston Primary School

PGSD Limited was asked to quote for circa 300 metres of artificial lawn by Heston Primary School.

Having been awarded the project, we dug 65mm below the concrete edging and laid 50mm of type 1 base which was compacted down with a roller.

Our team then added 15mm of sharp sand compacted.

We then laid the Ascot lawn to the prepared areas.