Ask the Expert
Have questions about your home garden, lawn, landscape, or plant health?
We’re here to help.
OSU Extension Greene County and our trained Master Gardener Volunteers provide non-biased, research-based answers to your gardening and plant-related questions.
To help us better assist you, please include:
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The name of the plant or problem (if known)
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Where the plant is growing (shade/sun, container/ground)
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How long you’ve had it
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When symptoms started
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A detailed description of the symptoms
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Photos (if available – these are especially helpful)
Submit Your Question Online:
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Ask a Master Gardener Volunteer (Gardening & Landscaping Questions Only)
Please check the Frequently Asked Questions before submitting.Prefer to contact us directly?
We’re happy to assist you by phone, email, or in person.
The Ohio State University
Master Gardener Volunteer Program (Greene County)
OSU Extension Greene County
100 Fairground Rd., Xenia, OH 45385
937-372-9971 Office
greenecountymgv@osu.edu
greene.osu.edu
Marina Miquilini
Agriculture and Natural Resources Educator
937-736-7205 Direct / 937-372-9971 Office
miquilini.1@osu.edu
Plant & Pest Diagnostic Support
Plant & Pest Diagnostic Clinic
C. Wayne Ellett Plant and Pest Diagnostic Clinic
Specializes in identifying plant diseases, insect issues, and plant health problems.
Buckeye Yard & Garden Line (BYGL)
BYGL provides weekly updates on Ohio’s growing conditions, plant diseases, insect alerts, and cultural care tips. Articles are written by Extension, Nursery, Landscape, and Turf (ENLT) team members and are designed for both industry professionals and home gardeners.
Visit BYGL
Subscribe by emailing: bygl@osu.edu
Additional fact sheets available at: OSU PlantFacts
Note: Trade names are used for educational purposes only. Always follow label directions for pesticide use.
OSU Diversity Statement
Tree Health & Forestry Resources
Swarm and Pest Management
Soil Sampling & Fertility Testing
Soil testing helps evaluate nutrient imbalances, informs responsible fertilizer use, and promotes healthy plant growth.
Greene County Soil Testing Information
Cost:
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Agronomic samples: $20
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Turf/Ornamental/Lawn samples: $24
(Make checks payable to: OSU Extension Greene County)
Steps to Submit a Sample:
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Submit your sample during office hours or use our 24/7 drop box.
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Receive results within approximately 10 business days.
What’s Tested:
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pH, phosphorus, potassium, calcium, magnesium
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Lime and fertilizer recommendations
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Optional tests: Organic matter, micronutrients
Additional Resources:
Water Quality Resources
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Ohio Watershed Network: Educational tools for watershed protection
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Ohio Pond Management: Tips on water quality, vegetation, fish, and more
Greene County Local Resources
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Greene County Environmental Services
Invite a MGV to Speak at Your Event
Would your club, garden group, school, or community organization like a Greene County Master Gardener Volunteer to present at your next meeting or event?
Our volunteers offer engaging, research-based presentations tailored to your audience and interests—on topics ranging from native plants and pollinators to composting, tree care, seasonal gardening, and more.Coming Soon: Our new Speaker Bureau Page will include a full list of presentation topics, speaker bios, and helpful resources to help you choose the right program for your event.
In the meantime, to request a speaker or educational program, please reach out to the Greene County Extension office.