Got Questions? Our Helpline Has Answers!

By Astrid Cook-Dail, NC State Extension Master GardenerSM volunteer of Durham County

Many people are familiar with the “Ask a Master Gardener” tents at local Durham events such as the farmers’ markets (both at Durham Central Park and in south Durham)… but did you know you can also ask all the plant questions you can think of from the comfort of your couch?

If you’re looking around your garden and see something curious, you can snap a few photos and email mastergardener@dconc.gov or call the helpline (919-560-0528). If you prefer, you can visit the Durham County Cooperative Extension Master GardenerSM program office in person at 721 Foster Street, Durham, NC. The helpline and office are both open Monday through Friday from 9:00 a.m. to 4:00 p.m.

Entrance to office 110 marked 'Master Gardener Volunteer Office' with wooden door and a sign above.

Outside the EMGV office at 721 Foster Street (Image credit: Astrid Cook-Dail)

Today, we are going behind-the-scenes at the office in an interview with Tina Falker to share some of the most popular questions asked and some helpful tips for submitting questions to make sure you get the most helpful assistance possible!

Top Questions Asked at the Office & Helpline

  1. What’s wrong with this plant?
  2. What is this plant?
  3. How do I get rid of this plant?
  4. What is this insect, and how do I get rid of it?
  5. How do I deal with [insert garden critter – deer, rabbits, squirrels, snakes…] ?

Many of these questions aren’t surprising, but the office once received an inquiry asking how to get rid of turkey vultures! Even with the most usual questions, there is always a new angle requiring research.

A well-organized office workspace featuring a desk with a computer monitor displaying a booking announcement, a telephone, and various printed materials. Bookshelves with a variety of books and decorative items are visible in the background, along with seating and storage containers.

The magical place where all the questions are answered! (Image credit: Astrid Cook-Dail)

Tomatoes

The most common question for the office in late summer: What’s wrong with my tomato, and what can I do about it?

Of course tomato questions are pouring in right about now, when plants are tired (like all of us) of the unpredictable weather and relentless heat and humidity. So here are just a couple of quick tomato tips:

  • Tomatoes drop their blossoms in high heat both during the daytime and when nighttime temperatures don’t cool down. They are a warmth-loving crop but they don’t like it too hot. (More about tomato blossom drop from ACES)
  • Unpredictable weather such as extended drought and extreme rain events – both of which our area has seen this year – increase the likelihood of tomato issues to due heightened plant stress.

If you would like more tomato growing advice, we did a whole post about that: Achieving Peak Tomato Performance.

Tips for Submitting Questions

Extension Master GardenerSM volunteers often play the role of “plant CSI.” It is our job to do some important detective work as we try to help answer your questions as thoroughly and accurately as possible and provide a trustworthy source of research-based information, especially in the AI era. Including the following information with your question helps us help you more quickly:

  • Do you know what the plant is? Are you sure? If you’re unsure, tell us what you know about it – whether it’s evergreen (keeps foliage all year) or deciduous (drops leaves usually in autumn or winter), what its flowers look like if it has any, etc.
  • What are the growing conditions? How much sun does it get? How much moisture?
  • Where is it growing, and how long has it been there?
  • Have there been any recent changes to your landscape?
  • When did you first notice the problem?

These three photos of Black-eyed Susan (Rudbeckia) illustrate how different levels of detail in plant photos can help diagnose issues. Photos further away and closer up provide essential context. (Image credit: Matt Lavin; Cathy DeWitt; JC Raulston Arboretum)

Photos are very helpful in assessment. If possible include a landscape shot to give the setting, then a separate photo of the plant itself and a closeup photo of the problem. A photo that shows both healthy and unhealthy portions of the plant can provide key information.

A ziplock bag containing green Morning Glory vine leaves with visible holes, accompanied by a handwritten note asking about the cause of the damage.

An example of what a plant sample dropped off in-person looks like. (Image credit: Astrid Cook-Dail)

You can also stop by the office and submit a physical sample, but beware that samples of dead, dried up foliage is usually not helpful. Instead, the sample should show the full range of symptoms, including healthy and unhealthy portions.

Reminder: Soil Tests Are Still Free!

You can find soil test boxes and forms (remember to take both!) to pick up and drop off samples here in the blue box outside the office. (Image credit: Astrid Cook-Dail)

Late summer and early fall is a great time to do a soil test, especially if you are looking to plant a fall vegetable garden or decide on cover cropping. (Read more about the importance of soil health in our post: A Better Way to Think About Soil.) Want to pick up a soil test kit, or drop off your soil sample? April through November, boxes and forms for sampling are available in the blue cabinet on the north side of the Durham County Extension Building at 721 Foster St. When complete, your results will be sent to you by email. If you need assistance interpreting your soil test report, we are happy to help with that as well.

Additional Recommendations and Resources

How to submit a sample to the NCSU Plant Disease and Insect Clinic

Edited by Astrid Cook-Dail, NC State Extension Master GardenerSM volunteer of Durham County

Upcoming Gardening Events: December 2025

(Image credit: David B. Gleason CC-BY-SA 2.0; Tim Sackton CC-BY-SA 2.0; S. Rae CC-BY-SA 2.)

Ask A Master Gardener

The Ask a Master Gardener Program is an opportunity for members of the community to ask questions about gardening and learn more about the NC State Extension Master GardenerSM  program. Durham County Master Gardener volunteers are available to provide answers using research-based information about plants and plant problems.

Our Extension Master GardenerSM volunteers will be back in 2026 at multiple community events. Stay tuned for more in January.

Book talk advertisement for 'The Light Eaters' featuring Zoë Schlanger, with a green background and the author standing amid foliage.

The Light Eaters: A Book Talk with Zoë Schlanger

Tuesday, December 16, 2025, 7:00 pm – 8:30 pm (virtual presentation). Fee: $10; Free for Members of the North Carolina Botanical Garden Foundation, Sarah P Duke Gardens, JC Raulston Arboretum, Durham Garden Forum and Durham County Master Gardeners. Pre-registration is required for all attendees. Info and registration.

The Light Eaters is a deep immersion into the drama of green life and the complexity of this wild and awe-inspiring world that challenges our very understanding of agency, consciousness, and intelligence. In looking closely, we see that plants, rather than imitate human intelligence, have perhaps formed a parallel system. What is intelligent life if not a vine that grows leaves to blend into the shrub on which it climbs, a flower that shapes its bloom to fit exactly the beak of its pollinator, a pea seedling that can hear water flowing and make its way toward it? Author Zoë Schlanger takes us across the globe, digging into her own memories and into the soil with the scientists who have spent their waking days studying these amazing entities up close.

Presented in collaboration with Sarah P. Duke Gardens, North Carolina Botanical Garden, JC Raulston Arboretum, and the Extension Master GardenerSM volunteers of Durham County.

North Carolina Botanical Garden

Hybrid Lunchbox Talk: “Selecting Corals for Reef Restoration

Thursday, December 11, 2025, 12 Noon – 1:00 pm (virtual and in-person attendance options). Free. Preregistration required. Info and registration.

Corals are the foundation of complex and biodiverse reef ecosystems often called ‘the rainforests of the sea’. Reef-building corals are engaged in an ancient intracellular symbiosis with photosynthesizing algae which provides the energetic budget driving bio-mineralization and the physical formation of reefs. Explore the efficacy of sexual and asexual propagation approaches in empirical research-scale restoration plots and seek techniques for predicting and promoting heat-tolerance in coral stocks.

Close-up of vibrant pink cosmos flowers with yellow centers, surrounded by green foliage.

(Image credit: Melinda Heigel)

JC Raulston Arboretum

Midweek Presentation “Garden Standouts of 2025”

Wednesday, December 17, 2025 3:00 pm – 4:00 pm (virtual presentation). Free. Preregistration required. Info and registration.

Join arboretum horticulture professionals as they celebrate the plants that shone this year in the garden.

Sarah P. Duke Gardens

There are important changes for visitors this year due to construction of the Garden Gateway project. Parking is affected. Learn before you go.

Seasonal Stewardship: Gardening for Biodiversity in Winter (virtual program). Free. Preregistration required. Info and registration.

Thursday, December 11, 2025, 12:00 Noon – 1:00 pm.

A garden in winter can be just as vibrant as in any other season. Join Dr. Neeti Bathala, professor, author, gardener, graduate of the Nicholas School of the Environment and Duke Gardens board member, to learn how to support local wildlife through thoughtful winter gardening practices. Discover native and select ornamental plants that provide food, shelter and unexpected blooms. Gain tools to deepen your connection to seasonal ecology and become a steward of your local environment by contributing to a mid-winter citizen science project aligning with the rhythms of nature.

Midday Meander through the Garden (in person). Free. Preregistration required. Info and registration.

Wednesday, December 17, 12:15 pm – 1:00 pm.

Join Kavanah Anderson, director of learning and community engagement at Duke Gardens, for a conversational stroll in the garden that deepens your relationship with plants. Swap plant stories, dig into horticultural history, question what you know and practice multisensory observation on a playful amble through the Gardens that delights and disrupts your understanding of what a garden can be. Expect to learn from each other, share what you know and leave with more questions than you started with.

Durham County Public Library

A lush, green carpet of moss covering the ground near a body of water, surrounded by ferns and greenery.

(Image credit: Krzysztof Ziarnek, Kenraiz CC BY-SA 4.0)

Durham Grown: The Durham County Library Garden Club presents The Wondrous World of Moss (in person). Free. Preregistration required. Info and registration.

December 6, 2025, 10:00 am – 11:30 pm at Main Library (300 N. Roxboro St, Durham)

Discover the wondrous world of mosses with Blanka Aguero, the Bryophyte Collections Manager at the Duke University Herbarium.

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