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Johnson County

Frequently Asked Lawn and Garden Questions

Questions? Boy, do we get questions!

Many times your question is not unique, or problem new. It is often  a similar concern for other gardeners.

In this sections you will find short answers to many of the more common issues faced by others. If you cannot find the answer you’re looking for be sure to let us know.

The Johnson County Extension Master Gardener Hotline is available to answer your gardening questions:
call: 913-715-7050,   email:  garden.help@jocogov.org

 K-State How-To Gardening Videos

FAQs  
Diseases Miscellaneous
Flowers Roses
Fruits Soils
House Plants Trees/Shrubs
Insects Vegetables
Lawns Weeds
 

Average Frost Free Dates for Johnson County, Kansas

Spring

Percentage Chance of Frost
(32 degrees F)
Dates
50/50 Chance April 15 (Average last frost date)
40% April 18
30% April 21
20% April 25
10% April 30
5% May 4
1% May 13
  • Earliest date of last frost was March 15, 1910.
  • Latest date of last frost was May 14, 1914.

Fall

Percentage Chance of Frost
(32 degrees F)
Dates
50/50 Chance October 23 (Average first frost date)
40% October 20
30% October 17
20% October 13
10% October 9
5% October 5
1% September 29
  • Earliest date of first frost was September 24, 1942.
  • Latest date of first frost was November 11, 1946.

 

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Contact Us>

Dennis Patton

Horticulture Agent

Dennis.Patton@jocogov.org

 


Laura Dickinson

Extension Master Gardener Coordinator

Laura.Dickinson@jocogov.org