Answer: The last average frost date for Helena is May 18. The first frost of the season usually arrives around September 18. That gives you about 122 frost free days. Enjoy!
« Click to go to the homepage
» Ask a question of your own
Q&A Library Searching Tips
[ Join now ]
© 1972 - 2016 National Gardening Association
Times are presented in US Central Standard Time
Today's site banner is by Paul2032 and is called "Coreopsis"