Verbena officinalis L.
|For 1 g : 3.5 €||8|
|For 5 g : 14 €||0|
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Family : Verbenaceae
Latin name : Verbena officinalis L.
Common name : Common vervain, common verbena, countryman's treacle, enchanter's plant, herb grace, herb of the Cross, holy herb, holy plant, Juno's tears, Mercury's blood, pigeon grass, pigeon's grass, setywall, simpler's joy, tears of Isis, vervain
- Family : Verbenaceae
- Genus : Verbena
- Specy : officinalis
- Author name : L.
- Type of plant : perennial
- Height in flowers : from 50 to 100 cm
- Hardiness (USDA zones) : 4b (from -31,7°C to -28,9°C), 5a (from -28,9°C to -26,1°C), 5b (from -26,1°C to -23,3°C), 6a (from -23,3°C to -20,6°C), 6b (from -20,6°C to -17,8°C), 7a (from -17,8°C to -15°C), 7b (from -15°C to -12,2°C), 8a (from -12,2°C to -9,4°C), 8b (from -9,4°C to -6,7°C), 9a (from -6,7°C to -3,9°C), 9b (from -3,9°C to -1,1°C)
- Environment : moist, drained, dry
- Sun exposure : partial shade, full sun
- Bloom color : purple
- Bloom time : june, july, august, september
- Difficulty : easy
- Number of seeds per gram : 2500
- Grams per 1000 seeds : 0.4