Kava (Piper methysticum)

Ashwagandha (Withania somnifera), sometimes called “Indian ginseng,” is a sturdy shrub growing to about 5 ft (1.5 m) with oval leaves, greenish or yellow flowers, and small, round fruits. A key herb in Ayurvedic medicine, it is valued for boosting vitality and aiding convalescence from chronic illnesses. It promotes relaxation, increases energy and muscle tone, and can support healthy thyroid hormone conversion from T4 to T3. Traditionally, ashwagandha is considered a “Rasáyana” (rejuvenator), used long-term to rebuild and regenerate body and mind.

Bacopa, also known as Water Hyssop or Brahmi, is a creeping succulent perennial that can grow to about 20 inches. It features spatula-shaped fleshy leaves and pale blue or white flowers on slender stalks. Thriving in marshlands and along the edges of mangrove swamps in warmer temperate and tropical climates—especially southern Asia—it develops into dense mats on mudflats. This herb has been a cornerstone of Ayurvedic medicine for supporting cognitive function and treating various nervous system disorders, and it is increasingly recognized in Western herbalism for its brain-enhancing properties.

Basil (Ocimum basilicum) is a bushy annual herb growing up to about 20 in (50 cm), with shiny oval leaves arranged on a square stem and small white flowers in whorls. Known for its strong, sweet aroma, basil is cultivated worldwide in numerous varieties. Traditional sources regard basil as both a culinary and medicinal herb, used to address digestive discomfort and various nervous system issues.

Catnip is a downy, aromatic perennial growing to 3 feet with heart-shaped, gray-green leaves and whorls of white flowers marked with purple spots. Native to Europe and naturalized in North America, it grows in dry wayside places and mountainous regions up to altitudes of 5,000 feet. The plant is gathered when in flower during summer and autumn. Its name comes from the Norse word 'dylla,' meaning 'to soothe,' reflecting its calming properties. Catnip has an excitatory effect on cats but a sedative effect on humans.

Codonopsis is a small twining perennial growing to 5 feet with oval leaves and pendulous green and purple bell-shaped flowers marked with purple in summer. Native to northeastern China and growing throughout the region—especially in the Shanxi and Szechuan provinces—it is propagated from seed in spring or autumn, and the root is harvested in autumn once the aerial parts have died down. In Chinese herbal medicine, codonopsis holds a central place as a gentle tonic that increases energy levels, improves physical and mental well-being, and helps the body adapt to stress.

Asian or Korean ginseng (Panax ginseng) is a perennial reaching about 3 ft (1 m) in height, with toothed oval leaves and a cluster of small green-yellow flowers. Its root is legendary for its adaptogenic qualities, boosting energy and physical stamina, slowing aspects of aging, and fortifying the body against stress. Ginseng is considered more warming (especially red ginseng, which is steamed before drying) and thus suited for older, easily fatigued individuals who feel cold.

Lavender (Lavandula officinalis, also known as L. angustifolia) is a small, perennial shrub that can grow about 3 ft (1 m) high, characterized by its narrow, silver-green leaves and spiked violet-blue flowers. Renowned for its sweet, calming aroma, lavender is a mildly warming, relaxing nervine, helpful in alleviating stress, tension, depression, and headaches. Its essential oil has antifungal properties and is commonly used for burns and other skin inflammations.

Linden comprises deciduous trees growing to a height of 100 feet with smooth gray bark, heart-shaped leaves, and clusters of pale yellow flowers with winglike bracts. Native to Europe, it is found in the wild but is also much planted in gardens and along roads. The flowers are collected in summer. Greek myth recounts how the nymph Philyra, devastated after being raped by the god Cronus in the guise of a horse and giving birth to the centaur Chiron, begged the gods not to leave her amongst mortals. The gods granted her wish by transforming her into a linden tree, forever linking this graceful species with transformation and divine mercy.