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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 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

September 6, 2025 Soil Moisture, Condition Monitoring and Drought Update

SEP 6, 2025

US Drought Monitor

Rapidly expanding drought over the eastern US with widespread drought over the west. Recent rain has helped dent developing drought in parts of the Ohio valley but it is still dry,...

drought monitor

August 24, 2025 Soil Moisture, Condition Monitoring and Drought Update

AUG 24, 2025

US Drought Monitor

Widespread dry and drought conditions in the western US. Widespread areas of  scattered dry and drought conditions in the east, including parts of Ohio, Kentucky, and Indiana. Mild...

us drought monitor map

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

Ron, this is outstanding. Exactly what I needed…thank you.

Jeff, Hyde Park

A rep stopped by and eliminated my concerns. Thank you so much for taking care of this so rapidly. I hear you are all very busy. See you later this spring.

Jeff, Mason

Ron, my deepest thanks for making time in your busy schedule to transplant the tree my mother gave me many years ago. I recommend your company to all my friends and family. You are truly an honest caring individual with deepest passion for your work. I also want to give a shout out to (Certified) Tree Service for recommending you. I have taken your advice and created a mulch bed of pine bark for the tree. It has taken wonderfully to it’s new location. Thank you and may you have a blessed summer.

Marcos, Liberty Twp.

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