Community Education

Master Gardener Program

Erika Johnson, Program Coordinator:
(360) 397-6060 Ext. 5738

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The Master Gardener Program offers a variety of ways to get answers to your questions about residential gardening and landscaping:

Answer Clinic
Workshops & Events
School Garden Coordinator Resources
MGs In The News
Speakers List

Prefer to investigate on your own? Check out our Resources page.

Not what you were looking for? Try these quick links to other topics:
Speakers List | Heritage Trees | Newsletter  | Gardening Tasks

Answer Clinic

WSU Master Gardeners researching plant identification at the Extension office answer clinic.

Need answers to your gardening questions? Whether it’s an insect pest infestation or an unknown pathogen destroying your beloved plants, certified Master Gardeners are available to answer your questions or provide advice.

Gardeners may bring plant or insect samples to the clinic.

How to get in touch with us:

Email us your question.

Call 360-397-6060 ext 5711.

Visit us at:
Heritage Farm/WSU Extension Plant Clinic Office
1919 NE 78th Street, Vancouver, Washington.

Hours for walk-in clients:

Tuesday and Wednesday  •  10 A.M. to 2 P.M.
Thursday and Friday  •  11:30 A.M. to 3 P.M.

Visit one of the various Outreach Clinics throughout the community.

Specimen Delivery
JapaneseKnotweedMaster Gardeners can only make an accurate assessment of the client’s issue with a fresh specimen. For plant problem diagnosis we require a representative sample that clearly shows the demarcation between un-thrifty and healthy tissue. Pick a fresh plant specimen, put the cut end of the stem in a moist paper towel, and then come to the Answer Clinic. If cut plants are left in sunny or hot location they will wilt excessively thus making diagnosis very difficult. For plant identification we need a representative sample that includes the vegetative portion of the plant (leaves, branches, stems), a portion of the fruiting or flowering structure, and a representative portion of the stem or bark. For insect identification we need an intact specimen brought into us in a small container soon after capture. For further information on sample submission consult the WSU Puyallup Research and Extension Center Plant & Insect Diagnostic Laboratory.

It is a rare occurrence when samples can not be identified at the Clark County Extension Answer Clinic in Vancouver. If there are instances where a specimen needs to go the WSU Puyallup Research and Extension Center Plant & Insect Diagnostic Laboratory there will be a modest charge for identification and further recommendations.

For noxious weed identification please submit samples to the Clark County Weed Management, which is located at the Clark County 78th Street Operations Center; 4700 NE 78th St., Vancouver. For further information contact Vegetation Management at 360/ 397-6140, or

Soil Testing
If you are having trouble in your garden and pest, disease or cultural causes don’t seem to be the reason, you may wish to get a soil test. Free soil test kits are available at the answer clinic. Or you may download one here.  Kits include instructions on how to collect samples, where to send them, and information on how to interpret your results. Testing costs vary depending on which analyses you choose.

Concerned about lead in your soil? Lead may be a concern if your garden is near an older painted structure. Lead in residential building paint was common up until the mid-1970’s, when it was phased out. To learn more about lead in soil, take a look at OSU Extension’s  Evaluating and Reducing Lead Hazard in Gardens and Landscapes publication.

Speakers List

Master Gardener volunteers with expertise on various gardening topics are available to present to your organization. Download the 2017 MG Speakers List and contact the speaker directly about their availability.

Our pages provide links to external sites for the convenience of users. WSU Extension does not manage these external sites, nor does Extension review, control, or take responsibility for the content of these sites. These external sites do not implicitly or explicitly represent official positions and policies of WSU Extension.

WSU Clark County Master Gardener Program
1919 NE 78th Street • Vancouver, WA 98665
(360) 397-6060 Ext. 5738

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