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Welcome to The Thielke Arboretum, Glen Rock, New Jersey!

The Garden in Your Backyard

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Docents Needed
Volunteer Days
Volunteer Honored

The Arboretum has many Opportunities to Volunteer


Volunteers Meet Every Tuesday & Saturday,  9:00 AM - 12:00 PM from March to October.


For more information regarding Tuesdays contact: 

Bill Gilligan, gilligbg@gmail.com, 201-444-0235, 

Saturdays, contact Naomi Gamorra at greendog03@optonline.net. 


Projects include everything on the list below and more. We need your help - just a few hours a month will make a great impact on this wonderful park.
Gardening
Grasses
Ferns
Wildflower Trail & Garden
Planters
Tree Survey
Nature Trails
Docent (we provide training)
Children's Activities
Children's Classes (we provide curriculum)
Pocket Garden Projects

Nature's Numbers:
Bird Tracking
Frog Tracking
Butterfly Counting
Membership


Perennial Bed
Azalea and Rhodedendrons
Kousa Dogwood Allee
Pond Banks/Edge & Weir
Plant Nursery
Plant Identification
Posters, Artwork & Information Signage
Historian (scrap book)
Grant Writing
Writers: Plublicity & PR, Brochures & Newsletters
Fundraising & Coordinationg Special Events
  • Remember to dress for garden work
  • Please bring your own kneeler and tools
  • Wear a hat,sunscreen, and closed shoes or boots. Dress in layers, according to the predicted temperature.
  • Remember - no electric, water or on site
  • Bathrooms available after April 1st