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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.
Our passion is sustainable and responsible stewardship of our trees and natural resources through best arboricultural and horticultural practices.
We offer you a full range of sustainable plant health care and landscape services.
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.
Blog
Thunderstorms conjure ghostly coronae in treetops, observed outdoors for the first time
The weak electric discharges may set off ultraviolet sparkles over large swaths of forest under storms, potentially impacting canopy health.
Who’s been chewing on my plants?
Please visit us at the Cincinnati Home and Garden Show in Booth 409
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
Weather Summary - February 2026
March 8, 2026 Soil Moisture, Condition Monitoring and Drought Update
Severely Wet conditions at Cheviot OH 3.4W.
Widespread dry and drought conditions in parts of Indiana and Ohio southwest into Texas, the south, the southeast, the east coast, New England, the centr...
Heavy rain and flooding in the Ohio valley
Companies We Work With
Testimonials
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.
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.
