Canada's Plant Hardiness Site

Aristida oligantha Michx.

oldfield threeawn, plains threeawn, prairie threeawn

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Data Details

Number unique observations: 1147
Zone range (Canada): 5a - 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	1
5b	1
6a	1
6b	1
7a	1
7b	1
8a	0
8b	0
9a	0
Outside Canada	99

USDA Zones
Zone	%
1	0
2	0
3	0
4	1
5	11
6	29
7	24
8	26
9	7
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	13.82	3.52	7.1	8.5	9.3	11.3	13.2	17.0	18.54	19.9	21.1	22.2	6.3
Max Temperature of Warmest Period	32.5	2.3	27.1	28.4	29.1	30.9	32.7	34.3	35.5	35.9	36.4	39.6	25.8
Min Temperature of Coldest Period	-5.46	5.04	-14.9	-13.17	-11.5	-9.1	-6.4	-1.4	1.44	3.1	6.25	7.5	-17.3
Annual Precipitation	1032.58	236.03	430.84	635.0	738.6	890.5	1021.0	1191.5	1349.6	1448.4	1558.54	1723.0	272.0
Precipitation of Warmest Quarter	277.01	54.63	101.84	185.3	194.0	249.0	290.0	315.0	331.0	339.0	370.7	482.0	37.0
Precipitation of Coldest Quarter	201.89	105.99	36.0	56.0	72.0	120.5	184.0	273.5	361.4	412.0	441.54	568.0	24.0