Hunterdon County | Rutgers Cooperative Extension of Hunterdon County

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  New Jersey Agricultural
Experiment Station
Cooperative Extension of Hunterdon County



Pursuant to operating guidance from Rutgers, the State University of New Jersey and the County of Hunterdon, Rutgers Cooperative Extension continues to meet the needs of the public primarily through phone, email, web-based communications and education.

If you need Home and Consumer Horticulture Helpline services, please email: with photos of the plants in question, and we will do our best to answer your concerns. 

Photos for diagnosis should include at least one overall picture of the site or plant, as well as close-ups of the plants/insects, etc. and symptoms in question. Please make sure the photos are in focus for the best chance of identifying plant problems. Include a description of the problem, as well as any other descriptions of environmental conditions.  Please include your name and phone number and township where you reside.


Master Gardners



Master GardnersAbout Us:

The Rutgers Master Gardeners of Hunterdon County is a horticultural education, outreach and service program administered through Rutgers NJAES Cooperative Extension (RCE) of Hunterdon County.  Master Gardener volunteers are trained from  September through April to work in all areas of home horticulture, including ornamental horticulture, lawn care, fruit and vegetable culture, Integrated Pest Management (IPM), identification of common home and garden pests as well as other topics.

How to Become a Master Gardener

Services / Outreach

Contact—Garden Information Helpline


Spotted Lantern FlyProblems with Spotted Lantern Flies?

Residents from Hunterdon County are reporting the invasive insect, spotted lantern fly (SLF).

Take our passive survey, and data collected will be used to generate maps showing the intensity and location of SLF problems in the county. In addition, your input will help assess the economic impact of SLF.


The Rutgers Master Gardeners of Hunterdon County are trained and able to assist County residents with a myriad of home gardening issues, including: providing the materials and information needed to obtain a proper soil sample for analysis, lawn care, and plant, tree and shrub identification, advice about the right plant for the right place and recommendations on native plant materials. With suitable samples, the Rutgers Master Gardeners can also help diagnose plant diseases, identify insects, weeds and other pests of the home and garden, and give written advice about the cultural recommendations for their control following sustainable and evidence-based techniques.

For identifying plant problems, several plant samples should be collected that represent the range of symptoms. For trees and shrubs, 6 to 8 inch pieces that include any leaves, flowers or fruit. Both a healthy and an “affected” sample work best for identification. Regarding insect pests of the home and or garden, please include a live or dead intact insect. Bring samples to the Master Gardener Helpline in a paper, or plastic bag, or clear container.

Note: It is important to provide your mailing address, email address and phone number when you contact the Master Gardeners.  Residents can call our Rutgers Master Gardener Helpline or come to the Cooperative Extension office for horticultural information and help with various gardening problems.

Master Gardeners Helpline: April through October: Monday thru Friday 9:00 am—12:00 pm; Mondays and Wednesdays 12:30 pm—3:30 pm

Mailing Address:

PO Box 2900
Flemington, NJ 08822
Phone: 908-788-1735

Physical Address:

314 Route 12 County Complex
Bldg #2
Flemington, NJ 08822
Fax: 908-806-4734

MG Members Only



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