Canada's Plant Hardiness Site
Symphytum asperum
Lepech.
prickly comfrey, rough comfrey
Synonymy
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Map for gardeners - (Based on temperature variables only)
Current distribution map - (Based on temperature and precipitation variables)
ssp126 2011-2040
ssp126 2041-2070
ssp126 2071-2100
ssp245 2011-2040
ssp245 2041-2070
ssp245 2071-2100
ssp585 2011-2040
ssp585 2041-2070
ssp585 2071-2100
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ANUCLIM
Maxent
Data Details
Number unique observations: 56 Zone range (Canada): 2b - 9a
Draw
p 1971-2000
Download Grid Data
Hardiness Zones
Canadian Plant Hardiness Zones
Zone
%
0a
0
0b
0
1a
0
1b
0
2a
0
2b
1
3a
1
3b
1
4a
1
4b
4
5a
3
5b
4
6a
3
6b
2
7a
1
7b
1
8a
1
8b
1
9a
1
Outside Canada
78
USDA Zones
Zone
%
1
0
2
0
3
1
4
10
5
23
6
40
7
14
8
5
9
3
10
1
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
8.02
3.2
3.55
4.1
4.5
5.18
7.6
10.1
11.7
14.6
16.09
16.2
3.0
Max Temperature of Warmest Period
25.72
2.27
22.1
23.08
23.2
23.98
25.6
27.0
29.0
29.62
31.42
33.4
21.5
Min Temperature of Coldest Period
-8.75
7.8
-19.14
-18.85
-18.1
-15.4
-11.0
-0.3
1.95
3.4
5.57
5.9
-19.2
Annual Precipitation
1110.5
299.0
489.7
577.75
727.5
948.75
1143.0
1253.5
1417.0
1620.75
1888.95
1972.0
449.0
Precipitation of Warmest Quarter
224.46
104.07
8.55
13.25
61.5
144.25
261.5
305.25
336.0
344.25
359.4
366.0
8.0
Precipitation of Coldest Quarter
333.62
166.37
106.3
153.5
176.0
226.5
273.5
401.25
582.0
646.75
790.2
832.0
70.0
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