Our Gardens


Closed Loop Park, established in 1995 adjacent to the Hawk’s Prairie Landfill, is one of the first parks to be built atop of a sealed landfill. Growing on only 18 inches of soil are a variety of plants ranging from low-growing sedums to trees with shallow root systems that will not damage the landfill liner.  Visitors can see a variety of vegetables, fruits, herbs, and flowers. There are over 90 varieties of peonies at Closed Loop Park!  At Closed Loop Park, visitors can learn how to compost using techniques such as worm composting and winter strawbale composting.  Master Gardeners at Closed Loop Park educate the public about sustainable landscaping and gardening techniques that reduce water and land impact planting techniques. “Closing the loop” is the main objective of the park, so great care is taken in the waste created at the park as well as the materials used there. For example, mulch used at Closed Loop Park comes from locally-collected holiday trees processed at the landfill. Compost comes from garden waste generated at the park. Salvaged materials are used for landscaping materials.

Closed Loop Park Hours:

The hours of the garden are dependent on the hours of the Waste Recovery Center.
Volunteers are in the garden: 

Fridays and Saturdays
March & November: 10AM – 1PM
April through October: 9AM – 1PM

Closed Loop Park website: http://closedloop.mgftc.org/

Sedums at Closed Loop Park.


The name DirtWorks reveals the reason for which this demonstration garden was founded:  Composting.  Established in 1989 at Yauger Park, DirtWorks began as a demonstration garden that taught the public how to compost at home, but it has expanded since then.  Now Dirt Works educates the public on both composting and sustainable gardening and has grown to include a children’s garden, rain garden, rose garden, vegetable garden, fruit trees and small fruits, rock garden, adaptive garden, turf grass, and bamboo.  There is also a home landscape area featuring native and hybrid plants suitable for shaded areas.  The compost area is extensive, and showcases the various methods, including worm composting, as to how home gardeners can transform their food and yard waste to create rich soil and enhance their gardens. Surrounding DirtWorks is a mixed border featuring non-invasive, low pollen, and water-wise plants providing year-round interest.

DirtWorks Hours:

While Master Gardeners and Master Composters are working in the garden, DirtWorks is open to the public.

March – October:
Tuesdays 9AM – 1PM
Saturdays 9AM – 1PM

DirtWorks website: http://www.dirtworks.mgftc.org/



Gallacci Garden is a viewing garden for patrons and visitors of the Olympia Farmer’s Market. Currently, growing in the garden are plants donated by the farmer’s market and vendors there. Eventually, it will be comprised mostly of native plants.

Gallacci Garden Hours:
Garden is open dawn until dusk.
WSU Master Gardeners and/or Thurston County Master Composters, when available, staff the clinic booth from 10AM – 2PM during the days and times the farmer’s market is open.

Gallacci Garden websitehttp://ofm.mgftc.org/


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