Canada's Plant Hardiness Site

Asclepias tuberosa L.

pleurisy root, orange milkweed, butterfly weed, chigger flower

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Data Details

Number unique observations: 10332
Zone range (Canada): 4a - 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	1
4b	1
5a	1
5b	1
6a	1
6b	1
7a	1
7b	1
8a	0
8b	0
9a	0
Outside Canada	94

USDA Zones
Zone	%
1	0
2	0
3	1
4	7
5	16
6	27
7	19
8	22
9	6
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	12.05	3.86	4.6	6.4	7.0	9.0	12.0	14.9	17.5	18.8	20.4	22.9	2.1
Max Temperature of Warmest Period	30.55	2.57	25.2	26.6	27.2	28.5	30.5	32.5	33.9	34.9	35.9	38.1	22.9
Min Temperature of Coldest Period	-6.93	5.57	-19.7	-16.8	-14.4	-10.3	-7.2	-3.0	0.2	2.3	5.4	10.8	-24.2
Annual Precipitation	1085.47	231.02	466.0	739.55	811.0	920.0	1100.0	1231.0	1397.0	1461.0	1600.0	1822.0	355.0
Precipitation of Warmest Quarter	300.52	52.01	177.31	210.0	241.0	277.0	304.0	323.0	344.0	374.0	492.0	519.0	95.0
Precipitation of Coldest Quarter	230.15	101.16	49.0	69.0	86.0	155.0	230.0	295.0	376.0	408.0	442.0	506.0	24.0