Canada's Plant Hardiness Site

Polystichum andersonii M.Hopkins

Anderson's holly fern, Anderson's sword fern, Vancouver holly fern

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Data Details

Number unique observations: 204
Zone range (Canada): 1a - 9a

p 1971-2000

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Hardiness Zones

Canadian Plant Hardiness Zones
Zone	%
0a	0
0b	0
1a	1
1b	1
2a	1
2b	1
3a	2
3b	4
4a	5
4b	5
5a	4
5b	6
6a	4
6b	3
7a	2
7b	1
8a	1
8b	1
9a	1
Outside Canada	56

USDA Zones
Zone	%
1	0
2	0
3	1
4	13
5	37
6	34
7	8
8	3
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	4.69	2.35	-0.98	0.72	1.29	2.9	5.1	6.4	7.4	8.36	9.0	9.9	-1.6
Max Temperature of Warmest Period	21.4	4.11	12.62	14.64	16.1	18.05	21.95	24.6	26.8	27.9	28.9	29.5	12.4
Min Temperature of Coldest Period	-7.59	3.75	-15.69	-13.86	-12.4	-9.9	-7.75	-4.78	-2.43	-1.6	-0.41	1.2	-16.5
Annual Precipitation	1578.3	747.11	428.54	655.5	780.8	942.25	1375.0	2251.0	2625.5	2876.0	3230.99	3614.0	357.0
Precipitation of Warmest Quarter	214.68	107.95	92.03	109.0	119.3	136.0	180.0	250.25	386.4	447.25	538.82	566.0	81.0
Precipitation of Coldest Quarter	578.54	291.98	102.18	196.95	258.5	350.25	497.5	830.25	967.4	1071.05	1301.32	1327.0	89.0