Johnson County Master Gardeners

Master Gardener Hortline Spring Hours- 

The Johnson County Master Gardeners are staffing the Spring season Hortline service for area homeowners and garden enthusiasts. The Hortline, staffed by volunteers, will be open 9-11am on Mondays and Fridays as well as 1-3pm on Wednesdays. You may speak to a Master Gardener by calling 319-337-2145, leave a message, email or stop by the Johnson County Extension Office, located adjacent to the Johnson County 4-H Fairgrounds at 3109 Old HWY 218 S. You may email your questions to the Johnson County Master Gardeners at and they can assist you with questions ranging from lawn care to fruit/vegetable production to ornamentals to pest management and much more. To learn more about how to become a Master Gardener, visit
2018 Annual Project Report
Typical JCMG Horline Hours:
April - October Monday 9-11am, Wednesday 1-3pm, Friday 9-11am 
November - March Thursday 9-11am

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