Bellevue Demonstration Garden

Address
15500 SE 16th St.
Bellevue, WA 98007 United States Get Directions
The King County Master Gardeners in cooperation with Bellevue Parks & Community Services manage the Lake Hills Greenbelt Urban Demonstration Garden also known as Bellevue Demonstration Garden. Established in 1984, this urban demonstration garden has grown from a single P-Patch surrounded by blackberries on a steep, rock-filled slope to the flourishing garden it is today. The mission is to provide public education in gardening and home horticulture, founded on resources from Washington State University, and to create a solid learning experience for the volunteers. The Bellevue Demonstration Garden demonstrates good gardening practices in a typical urban setting and provides Master Gardener volunteers a practical hands-on educational resource. The garden includes a complete MG Diagnostic Plant Clinic, Master Compost Center, Greenhouse Operations, Children’s Garden, over 40 demonstration beds and gardens.  Events include a Saturday on-line Workshop series and a Wednesday Kids in the Garden series, both for the general public and presented from January through October.  Two other major events are the Spring Plant Sale in May and Harvest Festival/Plant Sale in September. Hours: open from dawn to dusk.  Wheelchair accessible.

Events at this venue

Today

  • Soil Nutrition 2.0

    Bellevue Demonstration Garden 15500 SE 16th St., Bellevue, WA, United States

    Soil Nutrition 2.0 presented by Karen Adams, WSU Extension Master Gardener. Healthy soils produce nutritious foods, strong plants and protect the environment. This workshop will focus on managing and improving soil tilth for both vegetable beds and ornamentals. Learn about various soil amendment uses and benefits, specific crops and their unique needs throughout the growing season, and […]

  • Bellevue Demonstration Garden Harvest Festival

    Bellevue Demonstration Garden 15500 SE 16th St., Bellevue, WA, United States

    The community is invited to attend the annual Fall Harvest Festival on Saturday, September 19 from 10:00 a.m. until 2:00 p.m. This event marks the conclusion of the growing season and offers a variety of educational and family-friendly activities. The festival will feature a WSU Extension Master Gardener Plant Clinic, a Fall Plant Sale, fresh […]

  • Beavers: Ecosystem Engineers

    Bellevue Demonstration Garden 15500 SE 16th St., Bellevue, WA, United States

    Beavers: Ecosystem Engineers presented by Joe Mouser, Communications Manager with Beavers Northwest. As ecosystem engineers, beavers have a big impact on the habitats that they call home. This can often be a boon for fish and wildlife sharing this space, but a headache for people nearby. In this presentation, Joe will dive into beaver ecology and […]

  • Growing Garlic

    Bellevue Demonstration Garden 15500 SE 16th St., Bellevue, WA, United States

    Growing Garlic presented by Lory Armitage, WSU Extension Master Gardener. This workshop will cover garlic cultivation: soil preparation, planting techniques and tips for fertilizing and irrigation, harvesting and storage. Learn about seed garlic and scapes. We will visit the garlic bed at BDG to see some grown garlic; depending on varieties and maturity, we may be […]

  • Water Wise Gardening

    Bellevue Demonstration Garden 15500 SE 16th St., Bellevue, WA, United States

    Water Wise Gardening presented by Dawn Rubstello, WSU Extension Master Gardener. Watering may be the most important and most expensive task we do to be successful as gardeners. Learn about water-saving practices and irrigation systems. Learn how to water at the most effective time of day and what your plants need. Waste less water and save […]

  • Garden Tool Sharpening

    Bellevue Demonstration Garden 15500 SE 16th St., Bellevue, WA, United States

    Garden Tool Sharpening presented by John Harmeling, Master Consulting Rosarian with the Seattle Rose Society. This workshop will cover sharpening manual tools: pruners, hedge trimmers and other garden tools – did you know you can sharpen a shovel? Attendees are invited to bring their dull tools in for a demo on how to improve their condition […]

  • Basics of Successful Vegetable Growing

    Bellevue Demonstration Garden 15500 SE 16th St., Bellevue, WA, United States

    Basics of Successful Vegetable Growing presented by Jim Olson, WSU Extension Master Gardener, past president of the Master Gardener Foundation of King County and a popular speaker for the Master Gardener Speakers Bureau. He has long been associated with BDG and was the melon bed manager for ten years. Learn the basic principles of vegetable growing […]

  • Bellevue Demonstration Garden Spring Plant Sale

    Bellevue Demonstration Garden 15500 SE 16th St., Bellevue, WA, United States

    Come shop a wide selection of locally grown perennials, annuals and herbs while getting expert advice from our King County Master Gardener volunteers! When: Saturday, May 9, 2026  10:00 a.m. to 2:00 p.m. Where: Bellevue Demonstration Garden               15500 SE 16th St               Bellevue, […]

  • Fire Prevention for Your Yard

    Bellevue Demonstration Garden 15500 SE 16th St., Bellevue, WA, United States

    Fire Prevention for Your Yard  presented by Natalia Williams, Project Coordinator, Wildfire Mitigation with King Conservation District and Mike Lasecki, Stewardship Forester & Wildfire Mitigation Specialist with King County Department of Natural Resources and Parks.   Come join us for a presentation on wildfire mitigation in Western Washington. Topics discussed will include: fire ecology in Western […]

  • Bellevue Demo Garden Harvest Festival

    Bellevue Demonstration Garden 15500 SE 16th St., Bellevue, WA, United States

    Bellevue Demo Garden Harvest Festival When:  Saturday, September 20, 2025                 10am - 2pm Where: Bellevue Demo Garden                 15500 SE 16th Street                 Bellevue, WA 98007 Bring your family, friends and neighbors to […]

  • BDG Workshop: Seasonal Container Gardening

    Bellevue Demonstration Garden 15500 SE 16th St., Bellevue, WA, United States

    Bellevue Demonstration Garden is again offering in-person workshops. These in-person workshops will spotlight Master Gardeners who have combined knowledge amounting to hundreds of years! Veteran and novice gardeners alike will benefit from these presentations derived from science-based research, personal experience and state-of-the-art methods. Workshops will consist of a 30-to-45-minute presentations in the park shelter followed by a […]

  • BDG Workshop: Onion Know How

    Bellevue Demonstration Garden 15500 SE 16th St., Bellevue, WA, United States

    Bellevue Demonstration Garden is again offering in-person workshops. These in-person workshops will spotlight Master Gardeners who have combined knowledge amounting to hundreds of years! Veteran and novice gardeners alike will benefit from these presentations derived from science-based research, personal experience and state-of-the-art methods. Workshops will consist of a 30-to-45-minute presentations in the park shelter followed by a […]