Frequently Asked Questions
Questions, we get questions. Many times your question is not unique or a new problem. It is often a similar concern from another gardener. 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.
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 last 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.