Canada's Plant Hardiness Site

Iris hookeri Penny ex G.Don

beachhead iris, Canada beachhead iris, Hooker's blueflag, Hooker's iris

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Data Details

Number unique observations: 155
Zone range (Canada): 1b - 7a

p 1971-2000

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Hardiness Zones

Canadian Plant Hardiness Zones
Zone	%
0a	0
0b	0
1a	0
1b	1
2a	1
2b	2
3a	8
3b	16
4a	20
4b	14
5a	7
5b	8
6a	5
6b	2
7a	1
7b	0
8a	0
8b	0
9a	0
Outside Canada	12

USDA Zones
Zone	%
1	0
2	0
3	6
4	40
5	36
6	12
7	1
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	3.44	2.04	-0.33	0.27	0.84	1.7	3.5	4.9	6.34	6.8	6.99	7.5	-1.9
Max Temperature of Warmest Period	21.27	2.33	16.25	16.9	17.8	19.7	21.5	23.1	24.06	24.6	25.19	25.7	16.2
Min Temperature of Coldest Period	-15.28	4.2	-22.39	-21.1	-20.6	-18.4	-16.6	-11.4	-9.7	-8.67	-7.96	-7.2	-22.9
Annual Precipitation	1150.57	192.85	903.86	926.7	941.0	1001.0	1085.0	1262.0	1491.2	1509.3	1584.6	1669.0	898.0
Precipitation of Warmest Quarter	285.6	26.37	238.62	251.7	255.4	264.0	283.0	301.5	316.6	336.2	356.92	364.0	224.0
Precipitation of Coldest Quarter	286.55	70.13	196.08	203.7	212.0	223.5	272.0	339.0	400.2	411.0	433.82	474.0	182.0