Master Gardener Call Center

CALL CENTER HOURS 

Have plant questions? Our Master Gardeners have answers! Simply bring your plant sample or question in to our office during call center hours, or call and talk to a Master Gardener one-on-one. 
 

April through October: Thursdays from 4:00pm - 7:00pm
 

Call (563) 583-6496

 

CALL AHEAD! 

You may call in advance and the office staff will provide you with the Master Gardener hours for that week or you may leave a message for the Master Gardeners. You may also drop off a sample at the front desk at any time between the hours of 9:00 to 4:00, Monday through Friday. The Master Gardeners will answer your questions promptly within their weekly office hours.
 
*Diagnosis provided is only speculative, to have a confirmed diagnosis of any plant disease, insect, or other plant sample, a sample can be submitted to Iowa State University. 
 
Master Gardeners and Dubuque County ISU Extension and Outreach no longer submit plant and soil samples. Click the images below for forms and instructions how how to submit your samples. 
       
 

Have a question about gardening or horticulture? 

FIND US ON FACEBOOK! 

Dubuque County Master Gardeners

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