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Green leaves in a forest

Welcome to Arbor Doctor LLC! 

Our team will provide you with landscape and tree care solutions in Greater Cincinnati, Southwest Ohio, Northern Kentucky, and Southeast Indiana.

We offer you a full range of sustainable plant health care and landscape services click here to learn more

Pollinator Tested Arbor Doctor Approved Sustainable Solutions logo with bee holding honey bucket

Welcome to Arbor Doctor LLC! 

Our team will provide you with landscape and tree care solutions in Greater Cincinnati, Southwest Ohio, Northern Kentucky, and Southeast Indiana.

Unlike pesticide-centric plant health care programs, our organic nutrients are healthy for your plants. The nutrients thicken the cell walls to help the plants defend against insect attacks and be as resistant as possible to disease. Pesticides may still be utilized, but only in a targeted, limited fashion. We use pesticides which are low or no toxicity whenever possible.

 
tree roots

In the forest, tree root flares are near the surface.

Roots radiate out from the trunk like spokes on a wagon wheel. Roots grow in soils with active biology, including benefici...

13
SEP, 2025

Arbor Doctor Ron Rothhaas to appear on In The Garden with Ron Wilson Saturday morning, September 13, 2025, at 7:06 easte

SEP 11, 2025

Arbor Doctor Ron Rothhaas will be a guest on In The Garden With Ron Wilson on Saturday, September 13, 2025, at 7:06 AM eastern live on 550WKRC in Cincinnati and iHeart Radio and later on podcast and 6...

ron rothhaas and ron wilson
American Society of Consulting Arborists logo with RCA #794 Registered Consulting Arborist

Ronald E. Rothhaas, Jr.

ISA Board Certified Master Arborist®

ISA BCMA OH-5177B, TRAQ, TPAQ

Arbor Doctor owner Ron Rothhaas is a Registered Consulting Arborist (RCA), an ISA Board Certified Master Arborist®, a frequent contributor to the nationally syndicated In The Garden With Ron Wilson radio gardening show, and is the primary author and contributor of the Plant Health Care Newsletter for the Ohio Green Industry Association. Ron has been an ISA (International Society of Arboriculture) Certified Arborist® since 2004 and in February 2017 passed the exam for ISA Board Certified Master Arborist®.

RCAs have achieved the highest level of arboricultural credentialing available and can handle the most challenging and highest-profile assignments.

The ISA Board Certified Master Arborist® credential is the highest level of certification offered by ISA. This credential recognizes ISA Certified Arborists® who have reached the pinnacle of their profession. In addition to passing an extensive scenario-based exam, candidates must abide by the ISA Board Certified Master Arborist® Code of Ethics which ensures quality of work and high ethical standards. Fewer than two percent of all ISA Certified Arborists® currently hold this certification. Ron’s expertise is highly valued in the horticultural and arboricultural communities and he in a frequent guest on the In The Garden With Ron Wilson radio show, occasionally even co-hosting the gardening show originating from Cincinnati but broadcast nationwide on affiliate stations and iHeart Radio.

Weather Blog

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September 28, 2025 Soil Moisture, Condition Monitoring and Drought Update

SEP 28, 2025
Screenshot 2025-09-28 233754

September 21, 2025 Soil Moisture, Condition Monitoring and Drought Update

SEP 21, 2025

US Drought Monitor

Widespread drought over the west, the mid-Mississippi valley, and the northeast. Watering is needed. There is promise in the forecast but don't believe it until it's in the rain gu...

20250916_usdm

September 14, 2025 Soil Moisture, Condition Monitoring and Drought Update

SEP 13, 2025

US Drought Monitor

Rapidly expanding drought over the eastern US with widespread drought over the west. Developing drought in the Ohio valley. Watering is needed and the outlook is not promising. Wat...

Screenshot 2025-09-13 070259

Companies We Work With

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Natorp's logo
Natorp's
Dave & Aaron Stang's Certified Tree Care logo
Dave & Aaron Stang's Certified Tree Care
Hyde Park Landscape and Tree Service logo
Hyde Park Landscape and Tree Service
Holscher Hackman Garden Center logo
Holscher Hackman Garden Center
Drew and Ron taking a selfie

Registered Consulting Arborist Ron Rothhaas, Arbor Doctor LLC came out to our 95 year old home in College Hill today.  We live on a postage stamp but got lots of mature trees and shrubs and I had questions and concerns.  He is a walking encyclopedia of information and wisdom on how to address issues.  From bagworms in the arborvitae, to not enough sun on the evergreens, to shaping magnolias and cutting back taxus (hedges) we now have a game plan for moving ahead.  Some of this I will do myself and if (or when) I get in trouble I'll call Ron 513-661-2673.  One hour of time with the Arbor Doctor is a worthwhile investment.

Drew D.

We can’t say enough good things Arbor Doctor. We’ve had Ron out twice now to look at our trees and landscaping and found it extremely helpful and informative each time. On both occasions he was very generous with his time and gave us information on just about every plant we own. The second time he came out he was with another arborist, Mandi, who took extensive notes on all that Ron told us and we received a report afterwards detailing all this information.

We consider ourselves lucky to have found someone so very knowledgeable. We highly recommend Ron, and his team. If you have a garden, landscaping or trees that you want to maintain, you honestly owe it to yourself to have them come out.

Randy P., Cincinnati

I was very pleased with Noah & Melissa. They worked hard to remove the roots & wanted to be sure I was satisfied.

Terrific customer service!

Vizlenda

You all really are the best….and I really do appreciate you taking the time to be on our show.  Thanks again!

Ron Wilson, Natorps Market team / Personal Yardboy, Radio Host: In the Garden with Ron Wilson - 55KRC, iHeart Radio and 610WTVN

orange and red trees

Ron, I just wanted to say thank you for the the job you did in “re-woodsing” the hill in our backyard. As you can see, the fall colors are spectacular. The Parotia, in particular, is showing yellow, gold and red. And the Spring Grove dogwood is the most brilliant red, and perfectly placed. Just think of what it’ll look like in a few years when the trees start getting larger! We really appreciate your help. Thanks.

Connie & Karl, Westwood

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