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Ornamental Landscape Webinar Series: Urban Tree Soil Health

  • Thursday, November 4, 2021, 6:00 PM - 7:30 PM

There will be one presentation. 1.25 hours for lecture and 15 minutes for Q&A.

Tree Soil Below Pavements – Current Research on Different Options

James Urban, FASLA

Since 1980, planting trees in dense urban areas has gone from putting a tree into a small hole to an understanding that the soil below the pavement must be improved to grow successful trees. Currently there are three main options available to improve the soil and still support the pavement above. These are suspended pavement structures, sand based structural soil and stone based structural soil. Within each option numerous products and recommended specifications proliferate the design market. Research into the effectiveness of each of these options has been slow to emerge, but work is starting to show that there are significant differences in how trees perform. This session will knit together the trends and results in this critical field of study. It will demonstrate that each approach has a different effectiveness in growing trees. The session will also introduce alternative ideas to manufactured and engineered soils including soil profile rebuilding and working with unscreened native soil.

Limited in-person viewing of the live webinar will be available. Contact Mina Vescera at 631-603-9613 or mv365@cornell.edu to reserve your spot. Masks are required regardless of vaccine status. In-person viewing will be subject to last-minute cancellations due to Covid-19 CDC guidelines and CCE-Suffolk Covid-19 policy.






Mina Vescera
Nursery and Landscape Specialist


This event is online

Last updated October 13, 2021