Vervain is for those with fixed principles and ideas, which they are confident, are right and which they rarely change; those needing Vervain are determined but highly strung, over-achieving and keyed-up. They put unnecessary effort into everything they undertake, pushing themselves beyond their physical limits. Their minds race ahead of events; they take on too much work and try to tackle too many jobs at once.

These people are strong-willed and hold strong views. Sensitive to injustice and dedicated to causes, often self-sacrificially, their over-enthusiasm can be fanatical, so that they alienate potential allies and converts.

They may suffer from a lack of sleep due to their active minds and inability or unwillingness to relax. Demonstrative in speech and movement, they can be irritable, frustrated and annoyed over matters of principle.