If you are interested in having an event, please see my Lectures and Demonstrations page​. 
​​
Upcoming Events

  • June 9, 2026, Tuesday 7:00 PM - 8:00 PM - "Assisted Plant Migration: Expanding Our Native Plant Palette  for Climate Change" - Easttown EAC, Radnor EAC , The Radnor Conservancy, The Radnor Memorial Library, and Others - The Radnor Memorial Library, Winsor Room, 114 West Wayne Avenue, Wayne, PA
  • April 18, 2026, Saturday 10:00 AM - 12:00 PM - "Ready, Set, Start Your Seedlings" (5th-8th graders) - Radnor Environmental Advisory Council (EAC) - Lecture and Workshop Series 2026 - The Radnor Memorial Library, Winsor Room, 114 West Wayne Avenue, Wayne, PA 
​​
Past Events
​
  • March 21, 2026, Saturday Keynote 9:00 - 10:00 AM - "Shrubs & Hedges" - Second session 11:25 AM - 12:25 PM - "Creating a Woodland Garden" - (HCMGA) Hamilton County Master Gardeners Seminar - IMMI Conference Center, 18880 East Street, Westfield, IN 
  • March 2, 2026, Monday 2:30 PM - 3:30 PM - "Espaliers: An Age-Old Pruning Technique That is an Art Form" - The Philadelphia Flower Show - The Philadelphia Convention Center, 1101 Arch Street, Philadelphia, PA 
  • February 19, 2026, Thursday 4:30 PM - 6:30 PM - "Pruning" - Shreiner Tree Care, 334 South Henderson Road, King of Prussia, PA (ISA Training) 
  • February 10, 2026, Tuesday at 4:30 PM - 6:30 PM - "Tree Nutrition" - Shreiner Tree Care, 334 South Henderson Road, King of Prussia, PA (ISA Training) 
  • February 10, 2026, Tuesday at 1:00 PM - 2:00 PM - "Selecting Shrubs for Four Seasons of Interest" - Contemporary Garden Club of Princeton Morven Museum and Gardens, 55 Stockton Street, Princeton, NJ ​
  • February 5, 2026, Thursday at 4:30 PM - 6:30 PM - "Water Management" - Shreiner Tree Care, 334 South Henderson Road, King of Prussia, PA (ISA Training) 
  • February 3, 2026, Tuesday at 11:00 AM - 12:00 PM - "Pruning Techniques for Trees and Shrubs" - Huntingdon Valley Garden Club,  Huntingdon Valley Library (Valley Youth Center) 625 Red Lion Rd, Huntingdon Valley, PA 
  • ​January 24, 2026, Saturday Keynote at 9:15 AM - 10:15 AM - "Selecting Shrubs for Four Seasons of Interest" - Afternoon session at 12:30 PM - 1:30 PM - "Aspect and Form: A Partnership in Design" - OSU Summit County Master Gardeners, St. George Family Center, 3204 Ridgewood Road, Akron, OH
  • January 22, 2026 at 4:30 PM - 6:30 PM - "Soils" - Shreiner Tree Care, 334 South Henderson Road, King of Prussia, PA (ISA Training) 
  • ​January 19, 2026, Monday 6:00 PM - 8:00 PM - "Gardening in Winter: A New Twist" - Chester County Master Gardeners - Online Zoom. 
​
  • November 13, 2025, Thursday at 11:30 AM - "Designing with Shrubs for Fall and Winter Interest" - Georgetown Garden Club, Georgetown, Washington, D.C. 
  • October 9, 2025, Thursday at 9:30 AM - 10:40 AM - "Assisted Plant Migration Helps to Expand Our Native Plant Palette for Climate Change" - 2025 Montgomery County Master Gardener Fall Conference - Zoom - University of Maryland Extension, Montgomery County, 18410 Muncaster Road, Derwood, MD   
  • September 18, 2025, Thursday at 7:00 PM - 8:30 PM "Selecting Shrubs for Four Seasons of Interest" - online - Jenkins Arboretum & Gardens, 631 Berwyn Baptist Road, Devon, PA 
  • September 10, 17, 24, October 8, 15, 22, 29, 2025, Wednesday at 8:00 AM - 11:00 AM "ProHort: Woody Plants ID" - Longwood Gardens, 1001 Longwood Road, Kennett Square, PA - ProHort Students Only
  • September 4, 2025, Thursday at 10:00 AM -1:00 PM "Selecting Shrubs for Their Form, Function, and Beauty in the Garden" - a lecture, walk through the garden, and book signing at Northview Garden, Ambler, PA - Hardy Plant Society Members Only Event (If you sign up to be a member of HPS you are eligible.) 
  • August 28, 2025, Thursday at 3:00 PM - 3:45 PM CDT "Assisted Plant Migration for Climate Change" - Zoom - IMGC (International Master Gardener Conference) 2025 Conference - Texas A & M University 
  • June 14, 2025, Saturday at 1:00 PM "Berries, Berries, and More Berries" - Redbud Native Plant Nursery, 904 N. Providence Road, Media, PA ​
  • May 30, 2025, Friday at 12:00 PM - 1:30 PM "Lunch & Learn - Creating Beautifully Designed Food Forests for Migrating Birds" - Zoom - Aspetuck Land Trust, P.O. Box 444, Westport, CT ​
  • March 28, 2025, Friday at 12:00 PM - 1:30 PM "Lunch & Learn - Assisted Plant Migration Helps to Expand Our Native Plant Palette for Climate Change" - Zoom - Asapetuck Land Trust, P.O. Box 444, Westport, CT
  • March 22, 2025, Saturday at 12:45 PM - 1:45 PM "Shrubs & Hedges - The Ecological Role They Play" - Winterthur Garden, Museum, and Library, 5105 Kennett Pike, Winterthur, DE -  Hardy Plant Society Mid-Atlantic Group - March into Spring 
  • February 27, 2025, Thursday at 6:00 PM  - 7:00 PM "Tree Talk" - Weaver's Way Coop, 217 East Butler Avenue, Ambler, PA - Local Tree Group - Rob Cardillo
  • February 14, 2025, Friday at 9:30 AM - "Assisted Plant Migration Helps to Extend Our Native Plant Palette for Climate Change" Maritime Conference Center, 692 Maritime Blvd., Linthicum Heights, Baltimore, MD - Maryland Landscape, Nursery, and Greenhouse Association (MNLGA)  - Chesapeake Green
  • February 5, 12, 19, 26, 2025, Wednesday at 8:45 AM - 11:45 AM, March 5, 12, 19, 2025 - Wednesday 8:00 AM - 11:00 AM "ProHort: Woody Plants ID" - Longwood Gardens, 1001 Longwood Road, Kennett Square, PA - ProHort Students Only. 
​
  • November 20, 2024, Wednesday at 11:00 AM "Selecting Shrubs for Four Seasons of Interest" - Executive Banquet and Conference Center, 205 Executive Drive, Newark, DE 19702 - The Delaware Federation of Garden Clubs 
  • November 14, 2024, Thursday at 8:45 - 10:00 AM "Assisted Plant Migration Helps to Expand Our Native Plant Palette for Climate Change"  - Delaware Center for Horticulture, 1810 N. Dupont Street, Wilmington, DE - Ecological Landscape Alliance (ELA) 
  • November 12, 2024, Tuesday at 7:30 PM - 9:00 PM  "Designing with Shrubs for Fall and Winter Interest" - Vollmer Center Auditorium, Cylburn Arboretum 4915 Greenspring Avenue, Baltimore, MD 21209 - The Horticulture Society of Maryland, Inc. 
  • November 4, 2024, Monday at 11:00 AM "Selecting Shrubs for Four Seasons of Interest" - Vicmead Hunt Club, 903 Owls Nest Road, Wilmington, DE - Wilmington Garden Club 
  • September 17, 2024,  Tuesday at  11:00 AM "Gardening in Small Spaces" - Brightview Senior Living, 301 E. Conestoga Road, Wayne, PA  - Garden Workers Garden Club  
  • September 11, 18, 25, October 2, 9, 16, 23, 2024, Wednesday at 8:30 AM - 12:30 PM "ProHort: Woody Plants ID" - Longwood Gardens, 1001 Longwood Road, Kennett Square, PA
  • August 3, 2024, Saturday at 1:00 PM - 4:00 PM "Tree Health for the Homeowner" - Longwood Gardens, 1001 Longwood Road, Kennett Square, PA ​
  • ​June 17, 2024, Monday at 7:30 PM - 9:30 PM "Small Trees for Today's Landscape" - Brookside Gardens 1800 Glenallan Avenue, Wheaton, MD - Silver Spring Garden Club 
  • April 27, 2024, Saturday at 1:00 PM - 4:00 PM  "Flowering Shrubs for Spring Interest" - Longwood Gardens, 1001 Longwood Road, Kennett Square, PA
  • ​March 23, 2024, Saturday at 2:00 PM - 5:00 PM "Pruning 101: Shrubs" - Longwood Gardens, 1001 Longwood Road, Kennett Square, PA (possible course on March 30th at the same time) 
  • February 14, 21, 28, March 6, 13, 20, 27, 2024, Wednesday at 8:00 AM - 12:00 PM "ProHort: Woody Plants ID" - Longwood Gardens, Kennett Square, PA 
  • February 27, 2024, Tuesday at 10:00 AM - 11:30 AM "Shrubs & Hedges - The Ecological Role They Play" Talbot County Garden Club, Talbot County Free Library, 100 West Dover Street, Easton, MD
  • ​January 4, 9, 18, 25, February 6, 29, Various Days at 8:00 AM - 11:00 AM, other times vary "ProHort: Propagation" - Longwood Gardens, Kennett Square, PA 
  • February 22, 2024, Thursday at 3:30 PM - 4:30 PM "Assisted Plant Migration Helps to Expand Our Native Plant Palette for Climate Change" PLNA Symposium, Longwood Gardens, 1001 Longwood Road, Kennett Square, PA 
  • January 8, 2024, Monday at 11:00 AM "Selecting Shrubs for Four Season of Interest" Delaware Center for Horticulture, 1810 N Dupont St, Wilmington, DE810 N Dupont St, Wilmington, DE​​​ CANCELED​
​ ​  
  • ​September 24, 2022, Saturday at 10:45-11:45 and 1:00 "Pruning Deciduous Plants and Conifers" Scranton Convention Center for Master Gardeners of Pennsylvania. For Master Gardeners Only. 
  • September and December 2022, Tuesdays - "Landscape Management: A Garden Practicum" - The Barnes Arboretum at St. Joseph's University, 50 Lapsley Lane, Merion Station, PA 19066. In person at a distance. 
  • ​July 15, 2022, Friday at 9:00 AM to 4:00 PM "Gardeners' Voices" Woody Plants Conference, Scott Arboretum at Swarthmore College, Swarthmore, Pennsylvania. 
  • ​​February 25, 2022, Friday at 9:00 AM "Shrubs and Hedges" Manor View Farm and The Perennial Plant Farm, Monkton, Maryland - Zoom. 
 
  • October 30, 2021, Saturday at 1:00 PM "Pruning Shrubs and Hedges" Redbud Native Plant Nursery, Media, Pennsylvania. redbudnative.com/learn/
​
​