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When Is the Last Frost?
What to plant
Hardiness zones
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Idaho frost dates: T
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City
Last frost
First frost
Season
Zone
Tendoy
May 17
Sep 24
130 d
5b
Tensed
May 11
Oct 5
147 d
6b
Terreton
Jun 3
Sep 11
100 d
4b
Teton
May 29
Sep 13
107 d
5a
Tetonia
Jun 13
Sep 9
88 d
5a
Thatcher
May 29
Sep 17
111 d
6a
Troy
frost any month
6b
Twin Falls
Apr 30
Oct 9
162 d
6b
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
R
S
T
U
V
W
Y