Tree Planting Media | Soils | Aggregates – GreenBlue Urban
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Tree Planting Media

Our recommendation will always be to provide tree roots with the substance nature intended. In the long term, urban tree health is inextricably linked to the soil the roots are growing into. GreenBlue Urban are continually studying this subject and our goal is the provision for the urban tree of a soil which mirrors, as closely as possible, a ‘forest floor’ soil condition and content.

Our studies have led us to excavations in natural forests as well as urban tree planting sites around the UK, seeking out the most favourable rooting conditions – and their common characteristics. This has revealed that uncompacted, free draining fertile loam soil is the most root friendly substance on the planet.

Sand alone is not sufficient – or the Sahara would not be a desert. Rocky terrain likewise – without soil in, is not conducive to a healthy long-term rooting structure.

Roots in rock soil substrate mixtures, tend to be artificially elongated as they have to travel further to access nutrient and moisture – hence the need in this type of system for huge volumes (typically -50 cubic meters per tree, provides approximately 12 cubic meters of actual soil for roots.)

Our Solutions

Aggregate selected specially for its free draining characteristics and structural performance.

  • Provides base and side aggregate stabilisation required for load-bearing urban tree pits.

Aggregate selected specially for its free draining characteristics and structural performance.

  • Provides base and side aggregate stabilisation required for load-bearing urban tree pits.

RootStart is a wide-spectrum mycorrizhal innoculant which gives most common species a helping hand during the establishment phase.

  • Reduces mortality
  • Better drought tolerance
  • Earlier and better root growth

RootStart is a wide-spectrum mycorrizhal innoculant which gives most common species a helping hand during the establishment phase.

  • Reduces mortality
  • Better drought tolerance
  • Earlier and better root growth

GreenBlue Urban, following months of extensive research in the field and laboratory, has developed a unique, market-leading blend of soil for rain gardens and SuDS tree pits.

  • Reliability of hydraulic performance
  • Consistency of material
  • A soil blend you can trust

GreenBlue Urban, following months of extensive research in the field and laboratory, has developed a unique, market-leading blend of soil for rain gardens and SuDS tree pits.

  • Reliability of hydraulic performance
  • Consistency of material
  • A soil blend you can trust

Our recommendation will always be to provide tree roots with the substance nature intended – good quality, uncompacted topsoil.

  • Benefits
  • Optimum tree health, stability and longevity.
  • Zero maintenance or fertilization required.
  • Naturally well-draining.

Our recommendation will always be to provide tree roots with the substance nature intended – good quality, uncompacted topsoil.

  • Benefits
  • Optimum tree health, stability and longevity.
  • Zero maintenance or fertilization required.
  • Naturally well-draining.

Support &
Advice

GreenBlue Urban offer an easy-to-access support service, tailored to provide the backup and assurance specifiers need. We appreciate that many of today’s building projects can be very involved and complex; involving many fields of expertise of which the actual tree planting may be just a part.

Smart Space

Street Furniture
Bankside Guard Seat
Park Benches
Bicycle Stands
Litter Bins
Tables
Barrier Pillars/Bollards
Information Boards
Multifunctional Tree Surrounds

Lighting
ReLuminate

Air

ArborCharge
Air Cleaning Planter