Root Director ™ Round Tree Planter 600mm


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Citygreen root directors are designed to protect pavements, urban infrastructure and hard landscaped areas from tree root damage. Root directors prevent root swirl and divert root growth downward and outward into the soil, thus avoiding the unsightly and hazardous root damage to urban infrastructure so commonly seen in urban areas.

Tree root damage to curbs and sidewalks is a global concern, impacting both budgets and urban landscapes. In New Jersey, a statewide tree assessment found that around 25% of street trees contributed to sidewalk damage (Cardiac, 1996). Repairing sidewalks have become a significant expense for municipalities engaged in tree care (Mcpherson and Peper, 1995). Many of these issues stem from poorly designed sidewalks that don’t account for trees and their expansive root system. (Sydnor et al., 2000: Steve Sanford, per comm.). Arborist know Root Directors are a must when planting trees to manage tree roots near urban infrastructure like sidewalks, gutters, roads, buildings, landscaping, etc.

The new Citygreen Root Director C series carries the original benefits of the RD640 root director but now also includes an integrated circular lawn edge at the top surface for a neat finish to projects.


  • Integral Lawn Edge
  • Tapered sides
  • Protection for paved surrounds
  • Root Training Ribs – encourages deep root growth
  • Improved drought tolerance
  • Greatly enhanced tree stability
  • Integral ribbed construction which prevents root swirl
  • Compatible with Citygreen tree pit products
  • Simple to install
  • 100% Recycled polymer
  • Tough moulded construction
How to Install A Root Director


Root Director C Series 600

 Dimensions (mm)
A (top opening diameter) 600
B (base opening diameter) 900
C (height) 400


Tree Size (Pot Size) 


Pot Size Diameter (mm)  Root Director (Recommended) 
25L 300 RDC600
45L 420 RDC600
75L 465 RDC600
100L 520 RDC600
150L + 610 RDC900

Please note, the above dimensions are based on an average and should be used as indicative. Tree Diameter will still need to be calculated. 

Download – Technical Details 

RDC600 – PDFRDC600 – CAD

RDC900 PDF  / RDC900 CAD 


Planting trees with a properly designed root management system is a small cost to pay compared to the cost over time of infrastructure repair, not to mention litigation. Watch the video below and see how easy it is to install.

Additional information

Weight 4 kg
Dimensions 90 × 90 × 40 cm


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“Great customer service, quick response times and a very in depth QA system with constant support.”

- Laura Wiesenekker, Project Engineer, Densford Civil -

“Citygreen is a very professional  business, and I found everything was great in terms of deliveries, product supply and information. It was all forthcoming and helped us to complete the project.”

- Keith Burns, Architect/Designer, Keith Burns Architect -

“Citygreen offered training and invaluable technical assistance during the works.”

- James Callan, Estimating Manager, Complex Co Pty Ltd -

“Our experience, in working with a Citygreen Design Studio was second to none. We found responses from the design studio to be very timely, and technically thorough. We went backwards and forwards a number of times, looking at different iterations of the design and, nothing was too much trouble to examine and explore different possibilities. I would highly recommend the Citygreen Design Studio to any future client considering using your services.”

- Sandra Smith, Principal Landscape Architect, City Of Monash -

“We are big on compliance on all projects, and the fact that their SmartCertify cloud platform covers all bases, and supports their 20 year warranties, is critical – especially that these pits are being installed under roadways and footpaths.”

- Johny Purkaystha, Civil Program Engineer, Central Coast Council -

"I reviewed all the previous projects that we have installed in the past couple years using your product and I can happily report back that we have 0% mortality in the soil cells, which is incredible!"

- Brendan Wilton, CEO, Trim Landscaping, Bedford, Canada -