Canada's Plant Hardiness Site

Asclepias amplexicaulis Sm.

clasping milkweed, bluntleaf milkweed, sand milkweed

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Data Details

Number unique observations: 1832
Zone range (Canada): 5b - 7b

p 1971-2000

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Hardiness Zones

Canadian Plant Hardiness Zones
Zone	%
0a	0
0b	0
1a	0
1b	0
2a	0
2b	0
3a	0
3b	0
4a	0
4b	0
5a	0
5b	1
6a	1
6b	1
7a	1
7b	1
8a	0
8b	0
9a	0
Outside Canada	98

USDA Zones
Zone	%
1	0
2	0
3	0
4	1
5	11
6	31
7	24
8	27
9	4
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	13.69	3.69	6.5	7.2	8.1	10.4	14.2	16.6	18.4	18.9	19.9	21.6	5.8
Max Temperature of Warmest Period	31.57	2.2	27.1	27.9	28.3	29.7	32.1	33.12	34.3	34.8	35.7	36.4	25.5
Min Temperature of Coldest Period	-4.91	5.6	-16.97	-15.8	-13.4	-9.0	-4.0	-0.7	1.8	2.6	4.0	7.9	-18.2
Annual Precipitation	1177.2	227.65	751.31	829.55	861.0	970.0	1182.0	1352.0	1470.0	1534.45	1670.38	1839.0	650.0
Precipitation of Warmest Quarter	317.32	54.47	194.0	241.55	260.0	294.0	313.0	331.25	368.9	448.45	508.69	529.0	180.0
Precipitation of Coldest Quarter	267.06	112.29	63.31	79.0	92.0	159.0	281.0	355.0	411.0	424.0	454.69	510.0	54.0