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International Society of Arboriculture
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International Society of Arboriculture
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Event Details

WCISA - From Roots to Crown: Exploring Tree Health Less Than Six Feet Under

Date: July 14, 2023
Location: Cypress Lawn Arboretum & Memorial Park, Colma, CA, UNITED STATES
Organizer: Western Chapter ISA
Description: This regional conference will explore root health in trees in the urban environment, with a morning lecture series and afternoon field demonstrations out on the grounds of Cypress Lawn Arboretum and Memorial Park. The subject matter for the day will focus on maintenance of healthy roots systems in mature trees, including the proper application of root crown excavations, as well as methods of cultivation of good roots in young trees in young trees in nursery settings, primarily with container-grown nursery stock. Hands-on immersive learning opportunities to understand current arboricultural methods will be taught in-person by leading practitioners in our Western Chapter region, for a day of knowledge and fun at Cypress Lawn Arboretum!


7:30am Registration

8:00am Welcome and Introductions, Josh Gevertz, Arboretum Director, Cypress Lawn Arboretum and Memorial Park, Colma, CA

8:30am Root Crown Excavations Start to Finish, Christopher Campbell, Christopher Campbell Tree Design, San Francisco, CA and Ellyn Shea, Garden Guidance LLC, San Francisco, CA

9:30am Root Strategies and Infrastructure Impacts, Roy Leggitt, Tree Management Experts, San Francisco

10:30am Break

10:45am Roots Matter
Dave Teuschler, Devil Mountain Wholesale Nursery, Clements, CA

11:45am Lunch (Provided)

12:30pm Rooted from the Start: Nursery Practices at Work. Field demonstration of Pioneer Pots, compared to traditional containers
Dave Teuschler and Josh Gevertz

2:00pm In Practice: Root Crown Excavations. Field demonstration and tutorial in RCX implementation
Christopher Campbell and Roy Leggitt

3:30pm CEU Sign Out
*Please allow up to 6 weeks for processing of CEUs

Early Registration (through 7/4/23):

$140 - WCISA Member
$175 - Non-WCISA Member
$55 - Student/Senior
Regular Registration (on or after 7/5/23):

$165 - WCISA Member
$200 - Non-WCISA Member
$55 - Student/Senior


5.5 - CA / CTW / MS
5.5 BCMA-P
Contact Name: Heather Crippen
Contact Phone: 866.785.8960
Contact Email:

Seats Available: 100
CEUs available: Yes

Start Date: 7:30 AM, July 14, 2023
End Date: 3:30 PM, July 14, 2023

Address: Cypress Lawn Arboretum & Memorial Park
1370 El Camino Real
108 Events