Canada's Plant Hardiness Site

Dryopteris dilatata (Hoffm.) A.Gray

broad buckler fern, broad woodfern, spreading woodfern

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Data Details

Number unique observations: 77
Zone range (Canada): 0a - 9a

p 1971-2000

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Hardiness Zones

Canadian Plant Hardiness Zones
Zone	%
0a	4
0b	8
1a	7
1b	7
2a	6
2b	8
3a	5
3b	4
4a	2
4b	1
5a	1
5b	1
6a	1
6b	1
7a	1
7b	1
8a	1
8b	1
9a	1
Outside Canada	37

USDA Zones
Zone	%
1	1
2	29
3	29
4	15
5	10
6	9
7	2
8	1
9	1
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	1.49	5.59	-9.88	-5.8	-5.0	-2.7	1.5	4.9	9.54	11.52	12.86	14.3	-11.4
Max Temperature of Warmest Period	19.26	4.95	10.53	12.2	13.2	15.6	18.6	22.5	26.14	28.38	29.82	29.9	10.3
Min Temperature of Coldest Period	-14.94	9.31	-31.66	-29.68	-26.58	-22.1	-16.6	-6.4	-1.48	0.64	3.22	3.6	-32.8
Annual Precipitation	1007.13	627.75	253.36	321.6	363.6	520.0	811.0	1340.0	1947.4	2311.4	2620.72	3022.0	150.0
Precipitation of Warmest Quarter	222.4	93.59	26.48	80.8	114.0	166.0	208.0	267.0	341.2	378.8	472.92	536.0	9.0
Precipitation of Coldest Quarter	295.9	267.14	34.48	42.8	46.0	95.0	185.0	395.0	728.2	862.0	1009.28	1026.0	17.0