Canada's Plant Hardiness Site

Amaranthus powellii S.Watson

Powell's smooth amaranth, green amaranth

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Data Details

Number unique observations: 728
Zone range (Canada): 2b - 9a

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	1
3a	1
3b	2
4a	2
4b	2
5a	1
5b	1
6a	1
6b	1
7a	1
7b	1
8a	1
8b	1
9a	1
Outside Canada	87

USDA Zones
Zone	%
1	0
2	0
3	2
4	15
5	21
6	30
7	15
8	10
9	3
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	9.29	3.72	2.61	4.4	5.07	6.6	8.65	11.1	15.2	16.66	18.5	20.8	0.2
Max Temperature of Warmest Period	28.58	3.02	22.35	23.8	25.1	26.7	28.4	30.5	32.6	34.3	35.77	37.9	19.8
Min Temperature of Coldest Period	-8.64	6.96	-19.97	-18.2	-17.2	-14.4	-9.6	-4.47	2.0	3.7	6.57	9.5	-26.0
Annual Precipitation	720.47	298.48	213.08	283.75	345.4	457.25	707.0	971.25	1135.6	1197.65	1268.19	1509.0	163.0
Precipitation of Warmest Quarter	186.75	112.28	7.0	11.0	24.7	88.75	192.5	295.0	326.3	339.0	351.73	425.0	5.0
Precipitation of Coldest Quarter	183.56	109.47	30.27	43.35	60.0	102.0	171.0	238.0	301.9	404.9	551.11	597.0	22.0