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When Is the Last Frost?
What to plant
Hardiness zones
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Montana frost dates: I
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City
Last frost
First frost
Season
Zone
Ingomar
May 21
Sep 19
121 d
4b
Inverness
May 21
Sep 19
121 d
4a
Ismay
May 22
Sep 15
116 d
4a
A
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C
D
E
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H
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