Canada's Plant Hardiness Site

Triadenum virginicum (L.) Raf.

Virginia marsh St. Johnswort, marsh St. Johnswort, swamp St. Johnswort, Virginia St. Johnswort

Synonymy

Data Details

Number unique observations: 381
Zone range (Canada): 2b - 7b

p 1971-2000

Map Legend
Download Grid Data
Hardiness Zones
Canadian Plant Hardiness Zones
Zone%
0a0
0b0
1a0
1b0
2a0
2b1
3a1
3b1
4a1
4b3
5a2
5b2
6a2
6b1
7a1
7b1
8a0
8b0
9a0
Outside Canada84
USDA Zones
Zone%
10
20
31
49
516
630
719
819
94
100
110
120
130
Bioclimatic profile
namemeanS.D.1%5%10%25%50%75%90%95%99%maximumminimum
Annual Mean Temperature 9.924.293.064.95.87.08.711.317.518.820.3220.72.5
Max Temperature of Warmest Period 28.253.0621.5823.524.826.427.829.433.233.634.7435.920.6
Min Temperature of Coldest Period -8.595.77-19.6-17.2-15.1-11.8-9.9-5.90.92.35.586.5-22.8
Annual Precipitation 1210.9161.82809.6952.01023.01134.01196.01304.01420.01523.01638.81681.0728.0
Precipitation of Warmest Quarter 317.949.64219.4251.0267.0287.0313.0336.0375.0433.0483.8498.0199.0
Precipitation of Coldest Quarter 285.8169.8582.0179.0207.0248.0281.0321.0386.0422.0447.2469.067.0