Herbs are plants—often with aromatic leaves—used for flavoring food, for medicinal purposes, and for fragrance. In botanical and culinary contexts the term usually refers to the leafy green parts of plants used fresh or dried; many herbs are soft-stemmed and yearly or perennial in habit. They are valued for essential oils, flavors, and bioactive compounds that affect taste, scent and sometimes health.

Characteristics and parts

Typical herb attributes include aromatic leaves, stems, flowers or seeds that contain concentrated scents and compounds. Chemically, herbs are notable for essential oils, tannins, flavonoids and other phytochemicals. Garden herbs may be classified by life cycle (annual, biennial, perennial), growth habit (herbaceous vs. woody), and climate tolerance.

Common categories and examples

  • Culinary herbs: basil, parsley, thyme, rosemary, oregano, cilantro, mint, chives, dill, tarragon.
  • Medicinal or herbal remedies: chamomile, peppermint, lavender, echinacea, lemon balm (used traditionally for mild ailments).
  • Aromatic and tea herbs: lavender, lemongrass, sage, rose geranium, lemon verbena.
  • Garden types: annuals (e.g., basil), perennials (e.g., rosemary, thyme), and biennials (e.g., parsley in some climates).

Herbs have shaped cuisines and traditional medicine systems worldwide. The Mediterranean basin, South Asia and East Asia each developed rich herb traditions; indigenous peoples in all regions also used local herbs for food preservation, rituals, and healing.

Uses, cautions and distinctions

Uses range from seasoning and teas to topical applications and fragrances. While many culinary herbs are safe in normal food quantities, concentrated extracts or medicinal dosages can interact with medications or cause allergic reactions. Important distinctions: herbs typically refer to leafy green plant parts, while spices usually derive from seeds, bark, roots or fruits; some plants (e.g., rosemary) blur these lines.

For expanded lists, cultivation tips and profiles of individual species, consult broader resources and growers' guides or visit related listings to explore specific herbs and their uses.