Medicinal Uses*
Valerian root is a well-known nervine sedative herb traditionally used to support restful sleep and calm the nervous system. Unlike many narcotic sleep medications, valerian is generally considered non-habit forming. It has also been traditionally used as a mild anxiolytic (to reduce anxiety), antidepressant, and analgesic.
One of the most widely used herbal remedies in Western herbal medicine, valerian is valued for its calming and restorative properties.
Growing Conditions
Valerian grows best in partial shade but can also tolerate full sun in cooler climates. It prefers fertile, moist, nitrogen-rich soil and benefits from regular watering during hot, dry periods.
At KoruKai Herb Farm we apply a generous layer of mulch and use soaker hoses during extended dry weather. A deep weekly watering throughout summer helps plants thrive.
Planting
Plant crowns into a prepared garden bed enriched with compost and well-rotted manure. Space plants approximately 35cm apart and mulch around them well.
Keep the growing tips above the soil line and clear of mulch to prevent rotting. Water thoroughly after planting, then only as needed during dry summer conditions.
Harvesting
For the most potent medicinal roots, harvest in early spring (late July to early August) during the plant’s second or third year, before energy shifts into leaf and flower growth.
At harvest time the roots form thick, fleshy masses resembling linguine pasta. Later-season roots are typically thinner and less potent.
We use a trenching spade to lift the entire root ball for processing.
Processing & Drying
Soil often becomes compacted within the central crown of the rhizomes, so quartering the crown before washing is recommended.
Wash roots thoroughly, chop into smaller pieces, and dry with good airflow at 32–43°C for approximately 3–4 days (longer at lower temperatures). Aim to fully dry within one week to prevent mould.
Properly dried roots should snap cleanly rather than bend. Store in paper packaging in a cool, dry place for up to 2 years, or preserve as a tincture for longer-term storage. Roots can be milled in a food processor before use.
Herbal Preparation*
For internal use. Valerian root may be prepared as a tea (decoction) or tincture.
*This information is provided for educational purposes only and is not intended to diagnose, treat, cure, or prevent disease. Please consult a qualified and registered herbal practitioner before using medicinal herbs therapeutically.
