Medicinal plant to grow in edges and rockery. It is diuretic. It can treat sweating and it relieves rheumatism. It is one of the most important honey plants for bees.
A 1m tall perennial or biennial plant with purple tubular flowers becoming blue and later violet. Lanceolate leaves. Four fruits looking like a viper head.
Prefers dry, stony, limestone and sandy soils. It is found on meadows, on stony slopes, on cliffs or in the steppes.
Direct sowing. Temperatures 15ºC night/20ºC day. Lightly cover the seeds and maintain the humidity until germination is completed.
Calendar| I | II | III | IV | V | VI | VII | VIII | IX | X | XI | XII | |
| Sow outdoors | ||||||||||||
| Flowering |
| Attracts Wildlife | Bees |
|---|---|
| Average germination (%) | 70 |
| Climate Zone | Mediterranean, Temperate areas |
| Hardiness | Drought resistant, Non hardy |
| Plant use | Culinary, Edges, Honey producing plant, Landscaping, Medicinal |
| Seeds per gram | 333 |
| Soil - Ph | No preference |
| Soil - Type | Sand |