Medicinal Herb Research and Yield Estimates
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Collapse ▲5/12/2022 – Reviewed by Jeanine Davis, NC Alternative Crops and Organics Program, Department of Horticultural Science, NC State University.
This report is from studies conducted in 2000-2002 and remains here for reference.
Studies have been conducted at six research stations in North Carolina to develop commercial production systems for medicinal herbs with potential economic value for North Carolina growers. We offer here some of the information gained from these studies. Please keep in mind that this is preliminary information and these are not recommendations. Yields are estimates from research plots and gross returns are based on prices found on-line at the site given. Some plants have not been established long enough to obtain yield data.
Estimated yields per acre are based on 109-4 x 100 ft beds/acre. Yield ranges may include 1-3 rows/bed.
Estimated gross returns are based on a list of medicinal herb prices provided by a U.S. manufacturer in fall, 2002. These are subject to change at any time.
 American Spikenard |
Common Name: American Spikenard Botanical Name: Aralia racemosa L. Spikenard (Aralia racemosa) grows 1-10 feet tall and bears elongated flower stalks covered with yellow-green flowers which develop into purple berries. It grows in rich woods and riverbanks and is easy to cultivate. The roots are traditionally harvested in the fall and used to treat many ailments, including backaches. |
 Arnica |
Common Name: Arnica Botanical Name: Arnica chamissonis Arnica flowers, leaves, and roots are used to make healing ointments to relieve pain and inflammation. Arnica is esily cultivated in a n open field setting. Arnica is currently being grown on black plastic, white plastic, and bareground in the upper piedmont of North Carolina and on white plastic in the coastal plains of North Carolina. |
 Bloodroot |
Common Name: Bloodroot Botanical Name: Sanguinaria canadensis L. Bloodroot is an attractive, low-growing plant with lobed, waxy leaves which puts on pretty white flowers in very early spring. It can often be found growing in deep woods. It spreads naturally by rhizomes and seeds and can be easily propagated by both. The root of the bloodroot, which “bleeds” when cut, has a long history of use by Native Americans and has proven antimicrobial activities. It can be toxic, however, and should not be used casually. |
 Black cohosh |
Common Name: Black Cohosh, Cohosh, Bugbane Botanical Name: Actaea racemosa (L.) Nutt. Black cohosh is a common, but very popular, woman’s herb used in menopause and childbirth. Its immense popularity has caused concern for its well-being and cultivation is encouraged. Fortunately, it is easy to cultivate. It is an attractive shrub, which can grow quite tall, with delicate, lacy-type foliage. It thrives in rich, moist soil in about 80% shade. The roots are harvested in early fall for medicinal use. It can be propagated by dividing the rhizomes in spring or fall. Seed propagation is difficult, but we have a graduate student currently working on this problem. |
 Blue cohosh |
Common Name: Blue Cohosh Botanical Name: Caulophyllum thalictroides (L.) Michx Blue Cohosh is another beautiful plant that is commonly found in hardwood forests in southern Appalachia. The plant grows to about 3 feet in height and early in the year can have very blue foliage. In spring it puts on yellowish-green flowers which develop into a cluster of blue-purple berries. The rhizomes can be divided in spring or fall and the plant will spread naturally. Seeds are difficult and slow to germinate and should be kept moist. Blue cohosh is another woman’s herb, the root of which was traditionally used as a childbirth aid. It is easy to grow but the market is small. |
 Oriental burdock |
Common Name: Oriental Burdock Botanical Name: Arctium lappa Variety: Takinogawa long Yield: 6-17 lbs/100 ft row – 654-1853 lbs/acre Dried root returns: $1,177.20 – 3,335 40/acre Direct seeding worked well. Big healthy plants |
 Dandelion |
Common Name: Dandelion Botanical Name: Taraxacum officinale Yields: 7-41 lbs/100 ft row (763-4469 lbs/acre) Dried roots Returns: $1,716.75 – 10,055.25/acre root Excellent growth at higher elevation, foliage upright and full. Did poorly at lower elevation; poor germination and plants were creeping and sparce. |
 Purple echinaea |
Common Name: Purple Echinacea Botanical Name: Echinacea purpurea Yields: 5-32 lbs/100 ft row (535-3,488 lbs/acre) dried tops Returns: $963.00 – 6,278.40/acre tops Direct seeding into beds worked well. Direct seeding into black plastic mulch produced larger plants than transplanting into plastic. Looks great with good vigor and color. |
 Feverfew |
Common Name: Feverfew Botanical Name: Tanacetum (chrysanthemum) parthenium Yield: 7-22 lbs/100 ft row (763-2,398 lbs/are) dried tops Returns: $2,060.10 – 6,474.60/acre Transplanting was more reliable than direct seeding. Compact, dark green bushy plants. |
 Ginseng plant  Ginseng root |
Common Name: American Ginseng Botanical Name: Panax quinquefolius L. |
 Goldenseal |
Common Name: Goldenseal Botanical Name: Hydrastis canadensis L. |
 Gotu Kola |
Common Name: Gotu Kola Botanical Name: Centella asiatica Gotu kola leaves are used fresh and dried. It has many medicinal uses including wound healing. It is also used in Ayurvedic medicine. It is being grown on black plastic in the upper piedmont of North Carolina |
 Mayapple |
Common Name: Mayapple Botanical Name: Podophyllum pelatum L. |
 Mmilk thistle |
Common Name: Milk Thistle Botanical Name: Silybum marianum Comments: Transplanting into black plastic worked very well. Very vigorous plants. |
 Motherwort |
Common Name: Motherwort Botanical Name: Leonurus cardiaca This herb is used to treat heart conditions. Little research has been conducted on it either for uses or production. In 2002 it is being studied on black plastic, white plastic, and bareground in the upper piedmont of North Carolina, and on white plastic in the coastal plains of North Carolina. |
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pinkroot spigelia  Pinkroot spigelia |
Common Name: Pinkroot spigelia Botanical Name: Spigelia marilandica L. |
 St. Johnswort Topas |
Common Name: St. Johnswort Botanical Name: Hypericum perforatum Variety: Topas Direct seeding and transplanting worked well. Dark green, upright habit, good color, good vigor. |
 Wild St. Johnswort |
Common Name: St. Johnswort Botanical Name: Hypericum perforatum Variety: Wild Direct seeding and transplanting worked well. Good color, compact plants, low growing creeping habit with good vigor. |
 Skullcap Baikal |
Common Name: Skullcap Botanical Name: Scutellaria baicalensis Variety Name: Baikal Direct seeding and transplanting worked well. Plants small but healthy with good color. |
 Skullcap |
Common Name: Skullcap Botanical Name: Scutellaria lateriflora Yield: 5-15 lbs/100 ft row (545-1,635 lbs/acre) dried tops Returns: $2,583.30 – 7,749.90/acre Skullcap is being studied on black plastic, white plastic, and bareground in the upper piedmont of North Carolina and on white plastic in the coastal plains of North Carolina. |
 Spilanthes buds  Spilanthes |
Common Name: Spilanthes Botanical Name: Spilanthes spp The entire plant is used. Commonly known as the toothache plant, it is considered an immune system stimulant and has antiparasitic and antibacterial properties. Spilanthes is being studied on black plastic, white plastic, and bareground in the upper piedmont of North Carolina, and on white plastic in the coastal plains of North Carolina. |
 Stinging Nettle |
Common Name: Stinging Nettle Botanical Name: Urtica dioicca Yield: 4-12 lbs/100 ft row (436-1,308 lbs/acre) dried tops Returns: $1,177.20 – 3,531.60/acre Spring seeding and transplanting worked well. Big lush plants, good color at lower elevation. More open growth at higher elevation. |
 Valerian Arterner Zuchtung |
Common Name: Valerian Botanical Name: Valeriana officinalis Variety: Arterner Zuchtung Yield: No data-1st harvest in 1999 Transplanting worked best. Healthy, dark green but small, some flagging in heat. |
 Common Valerian |
Common Name: Valerian Botanical Name: Valeriana officinalis Variety: Common Transplanting worked best. Dark green color, big plants. |
 Vervain |
Common Name: Vervain Botanical Name: Verbena officinalis Yield: 3-11 lbs/100 ft row (327-1199 lbs/acre) dried tops Transplanting worked well. Beautiful, dense plants. |
 Blue Vervain |
Common Name: Blue Vervain Botanical Name: Verbena hastata Yield: 9 lbs/100 ft row (981 lbs/acre) dried tops. Returns: $3,433.50-$3,924.00/acre Spring seeding was poor. Fall seeding was good. |
 Virginia Snakeroot |
Common Name: Virginia Snakeroot Botanical Name: Aristolochia serpentaria L. |
 Yellowroot |
Common Name: Yellowroot Botanical Name: Xanthorhiza simplicissima Marsh |