Canada's Plant Hardiness Site

Tsuga mertensiana (Bong.) Carrière

mountain hemlock, alpine hemlock, black hemlock, hemlock spruce

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Data Details

Number unique observations: 1891
Zone range (Canada): 1a - 9a

p 1971-2000

Map Legend

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Hardiness Zones

Canadian Plant Hardiness Zones
Zone	%
0a	0
0b	0
1a	1
1b	1
2a	1
2b	2
3a	3
3b	4
4a	5
4b	6
5a	5
5b	6
6a	4
6b	3
7a	2
7b	1
8a	1
8b	1
9a	1
Outside Canada	50

USDA Zones
Zone	%
1	0
2	0
3	2
4	16
5	32
6	31
7	8
8	5
9	1
10	0
11	0
12	0
13	0

Bioclimatic profile

name	mean	S.D.	1%	5%	10%	25%	50%	75%	90%	95%	99%	maximum	minimum
Annual Mean Temperature	4.04	2.77	-1.8	-0.6	0.4	2.0	4.1	6.1	7.7	8.5	9.81	11.8	-3.5
Max Temperature of Warmest Period	20.06	3.85	12.69	14.1	15.1	17.1	19.8	23.1	25.1	26.5	28.51	31.7	9.9
Min Temperature of Coldest Period	-8.01	4.31	-17.2	-14.75	-13.3	-11.1	-8.2	-4.8	-2.1	-0.6	1.21	2.4	-20.9
Annual Precipitation	1498.19	643.81	516.5	674.0	762.0	965.0	1364.0	1937.5	2438.0	2688.0	3174.8	3479.0	354.0
Precipitation of Warmest Quarter	188.22	91.95	41.0	53.5	65.0	126.0	183.0	240.0	306.0	356.5	453.6	506.0	34.0
Precipitation of Coldest Quarter	572.41	264.14	140.8	209.0	274.0	359.0	530.0	772.0	940.0	1039.5	1280.3	1371.0	84.0