Canada's Plant Hardiness Site

Aster alpinus subsp. vierhapperi Onno

Vierhapper's aster, North American alpine aster

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Data Details

Number unique observations: 54
Zone range (Canada): 0a - 5a

p 1971-2000

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Hardiness Zones

Canadian Plant Hardiness Zones
Zone	%
0a	12
0b	19
1a	12
1b	9
2a	6
2b	6
3a	3
3b	1
4a	1
4b	1
5a	1
5b	0
6a	0
6b	0
7a	0
7b	0
8a	0
8b	0
9a	0
Outside Canada	26

USDA Zones
Zone	%
1	2
2	57
3	30
4	7
5	1
6	1
7	0
8	0
9	0
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	-4.01	3.56	-11.87	-10.84	-10.3	-5.62	-3.3	-2.1	0.11	0.74	3.03	3.4	-12.4
Max Temperature of Warmest Period	18.67	2.66	13.49	14.66	14.9	16.6	18.8	20.55	22.34	22.77	23.28	23.7	12.8
Min Temperature of Coldest Period	-26.01	5.16	-32.83	-32.14	-31.87	-29.68	-27.25	-23.45	-16.7	-15.83	-15.31	-15.1	-33.2
Annual Precipitation	431.0	157.84	250.59	254.0	269.6	304.0	388.0	524.0	676.9	721.0	818.17	824.0	249.0
Precipitation of Warmest Quarter	175.28	49.89	115.12	117.0	119.8	136.25	165.0	200.25	246.5	269.2	308.34	320.0	113.0
Precipitation of Coldest Quarter	78.33	46.34	30.06	34.0	35.0	42.0	71.0	96.5	136.7	185.95	214.41	216.0	29.0