Harmony Arboretum

Harmony greenhouse

Pavilion and Greenhouse located at Harmony Arboretum

N3890 County E Peshtigo, WI

(7 miles west of Marinette on Hwy 64 then 1/2 mile south on County Road E)

This nearly 500-acre county farm has been developed into a conservation and horticulture education and demonstration area.  In the Arboretum is a majestic hardwood forest, winding walking trails, a restored prairie, and demonstration gardens.

History of Harmony  A timeline with photos and satellite images

It is always open to the public and free.

Marinette County owns Harmony Arboretum, but the community is key to it’s success.  Many groups work to make it better each year.

  • Extension Marinette County
  • Northern Lights Master Gardeners & Friends
  • Marinette County Land & Water Conservation
  • Chappee Rapids Audubon Society
  • many businesses and public entities also support the efforts at Harmony


Harmony Picture Tour   – check back often, this tour will be expanded soon!

Facebook  See more of Harmony on Northern Lights Master Gardener page

2015 Halloween Family Fun Fest Tour

The Master Gardeners’ display and demonstration garden is a 3-acre area within the Arboretum protected by a wildlife-excluding fence. It is always open to the public – but please close the gate!

Most of Extension Marinette County Nature & Horticulture Programs are held at Harmony Arboretum


The variety of gardens include:

  • Perennial garden at the entrance
  • Formal herb garden with well over 100 different herbs
  • Vegetable gardens, including raised beds and wheelchair accessible beds
  • Shade garden
  • Water feature
  • Certified Monarch Waystation
  • Enabling garden
  • Childrens Learning Garden
    • sensory garden
    • wetlands
    • beaver pond and lodge
    • chipmunk tunnel
    • living maze
  • Glass hobby greenhouse
  • Fruit Tree Orchard
  • Bird Habitat

Harmony planters

Harmony planters 2






Each year the display and demonstration gardens change, whether it is due to environmental factors or the Master Gardeners themselves, it is constantly evolving.  Visit often!

 There are also a number of smaller demonstrations showing phenology, lawn establishment & management and pollinator habitats.