Canada's Plant Hardiness Site

Astragalus agrestis Douglas ex G.Don

field milkvetch, purple milkvetch, meadow milkvetch

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Data Details

Number unique observations: 1310
Zone range (Canada): 0a - 7a

p 1971-2000

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Hardiness Zones

Canadian Plant Hardiness Zones
Zone	%
0a	1
0b	1
1a	1
1b	9
2a	10
2b	15
3a	10
3b	6
4a	2
4b	1
5a	1
5b	1
6a	1
6b	1
7a	1
7b	0
8a	0
8b	0
9a	0
Outside Canada	41

USDA Zones
Zone	%
1	1
2	18
3	39
4	19
5	13
6	8
7	1
8	1
9	0
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	4.26	2.64	-3.09	-0.55	1.2	2.7	4.2	6.1	7.5	8.5	9.6	10.9	-3.9
Max Temperature of Warmest Period	26.37	3.1	19.6	20.94	22.3	24.0	26.5	28.8	30.5	31.1	31.9	35.1	16.2
Min Temperature of Coldest Period	-16.45	4.61	-29.2	-24.5	-23.0	-19.2	-16.0	-12.8	-11.0	-10.0	-7.4	-5.5	-30.5
Annual Precipitation	432.5	103.86	227.09	286.0	304.0	358.0	425.0	495.75	574.1	624.1	708.0	793.0	191.0
Precipitation of Warmest Quarter	153.27	57.75	43.0	60.0	79.0	113.0	147.0	195.75	232.0	254.0	288.91	324.0	28.0
Precipitation of Coldest Quarter	68.48	36.43	24.0	29.0	32.0	42.0	56.0	88.0	124.0	141.0	177.0	203.0	21.0