Nature & Horticulture Programs

  • Join the educators as the seasons change for a year full of learning and observing nature.
  • Connect with other like-minded individuals to share experiences and to learn from their trials, good or bad!
  • Plenty of research based information is available through these programs for you to utilize in your own backyard.
  • All information presented is geared to the general homeowner and topic discussion is very much encouraged.

UW-Extension has a different horticultural focus each year at Harmony Arboretum



By popular request Art in the Garden will again be held at Harmony Arboretum on Saturday, August 4thfrom 9 a.m. to Noon. This event sponsored by Northern Lights Master Gardeners Association (NLMGA) includes a variety of Make ‘n Take garden art projects, garden tours, snacks, and an edible flower presentation and tasting. Adults and Youth (15 and under) with a desire or flair for creating garden art projects are encouraged to attend. Basic entrance registration fees are $10 for adults and $5 for youth. Registrations can be made in advance or on the day of the event

In addition to the Make ‘n Take, Two Art and Craft Workshop Sessions are offered with an additional fee to defray material costs. Participants can select one or two workshops sessions. These workshops are held in two breakout sessions and include: Willow Plant Support, Willow  Flower, Pot Puppy, Wine Glass Painting, Paver Painting, Zentangle and Kokedama. Basic entrance registration (includes garden tours, snacks and edible flower) and Pre-registration Workshop fees are due by July 25th.  Early registration is encouraged, as workshop class sizes will be limited. For a brochure and registration form, click on Art in the Garden, go to the Facebook page, or stop in at UW Extension, or local libraries and businesses. For further information please call Pat at 906-863-3729.

A Garden Art Contest will simultaneously be held with this event at Harmony Arboretum in two categories – Youth (ages 15 and under) and Adult. Please provide a shepherd’s hook for any wind chimes or hanging submissions. A prize will be awarded to the most popular entry in each category as voted by participants attending the Art in the Garden. Advance registration (no fee) is preferred and entry must be delivered to Harmony Demonstration Gardens by 9:15 a.m. on Saturday, August 4th and be accompanied by an entry form. Harmony Arboretum is located on County Highway E, Peshtigo, WI.



Annually over the last eight years area Northern Lights Master Gardeners Association (NLMGA) has sponsored a Garden Walk featuring local gardens. It is with regret that the 2018 Garden Walk is postponed. Tentative plans are a July 20, 2019 date for next year. We thank the many repeat attendees of our Garden Walks for their support and apologize for delivering this news at this late date.

We are grateful for the many homeowners and non-profit organizations that have helped make this Garden Walk a success. To allow us to continue this event, we invite homeowners, businesses or non-profits who have garden sites they are willing to open to the public for a one day tour in the future to express interest. The co-chairs and contact information for questions or recommendations of gardens for consideration are: Gail Mandli at 715-789-2872 and Viki Palid at 715-735-6137.

The demonstration garden at Harmony Arboretum maintained by NLMGA on County Road E, Peshtigo is always open to the public. This garden is a wonderful stop for families throughout the growing season. Both adults and children will see and learn many interesting facts at this garden that is maintained by NLMGA members.


View a complete listing with descriptions of the
Nature and Horticulture Programs – 2018


Results of the 2016 Garlic demonstrationbn-spring_vegetable_garden_guide_when_to_plant_opt