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You Can’t Always Get What You Want:Seeking and Achieving Urban Forest Species Diversity
Matthew Stephens
Director of Street Tree Planting
NYC Department of Parks & Recreation
Elizabeth Elbel
Neighborhood Trees Specialist
ISA Certified Arborist
Friends of Trees
Portland, Oregon
Nancy Buley
Director of Communications
J. Frank Schmidt & Son Co.
Boring, Oregon
Trees from Seed to City
• Many stakeholders
• Many variables
• Complicated supply chain
• Environmental challenges
• Risky business
From glut to shortage
• Unusual species more rare
• Contractors will ask for subs
• Know your suppliers
• Visit nurseries
• Be creative!
Trees by the million
So where’s the diversity?
Getting what you want will require planning, open communication and creative growing agreements with trusted nursery partners.
Timeline from tissue culture plantlet. to the street in Old City Philadelphia:
Nearly a decade.
Time, time, time – not on our side.
Getting what you want will require planning, open communication and creative growing agreements with trusted nursery partners.
Friends of Trees
Urban Canopy Project Partnerships driving program growth
Cultivating Relationships
Where do we grow from here?
0
5000
10000
15000
20000
25000
1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
Permitted Trees
Contract Trees
Street tree planting in NYC
• 3 Nurseries supply all street trees
• 9 year tree growing contracts
• All trees get tagged by NYC Parks
• Be an educated consumer and know
where your trees come from
• Increased species availability for
planting
• 22 Families
• 41 Genera
• 24 species of Quercus
• 12 Cultivars of Ulmus
• 10 Cultivars of Tilia
• Increased quality and consistency of
tree selection and stock
• Contracts are a planning tool
Tree Procurement Contracts
0.00%
5.00%
10.00%
15.00%
20.00%
25.00%
Species Prescriptions
You just might findYou get what you need
THANK YOU!
