Artemisia (ludoviciana)

jtrindle USDA NRCS - Corvallis Plant Materials Center 3415 NE Granger Ave Corvallis, Oregon 58413 (541)757-4812 http://plant-materials.nrcs.usda.gov/orpmc

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Family Scientific Name:	Asteraceae
Family Common Name:	Composites; aster family
Scientific Name:	Artemisia ludoviciana Nutt.
Common Name:	white sagebrush; sagewort
Species Code:	ARLU
Ecotype:	Our collections were from Mt Rainier National Park near Cayuse Pass to Tipsoo Lake; 4,700 to5,00 ft
General Distribution:	Widespread across north America; dry, open places. In Mt Rainier NP, at mid to sub alpine elevations especially in disturbed places
Propagation Goal:	seeds
Propagation Method:	seed
ProductType:	Propagules (seeds, cuttings, poles, etc.)
Stock Type:	Seed
Time To Grow:	3 Years
Target Specifications:	Clean seed free of noxious weeds; 60 % germination or better with appropriate pre chill.
Propagule Collection:	Seeds hand-stripped at maturity, or larger amounts cut with hand sickle on collected into cloth seed bags. Easily collected, often occurs in dense stands.
Propagule Processing:	Air-dry seeds in cloth sacks; if seed heads harvested with sickle, they should be run through a thresher with very low air flow to avoid losing the small, light seeds. Then cleaned with Office clipper; 1/12" screen, followed by 1/13 to 1/18" screen as needed.
Pre-Planting Treatments:	Germination was improved with 14 day prechill at 3 to 5 C; fall-sowing resulted in good seedling emergence after natural stratification at test plots at Mt. Rainier.
Growing Area Preparation/ Annual Practices for Perennial Crops:	Fine, firm seedbed; seed can be shallowly drilled with Planet junior in rows or broadcast and raked in; early spring.
Establishment Phase:	Supplemental irrigation may be needed if soil surface becomes very dry during or shortly after seedling emergence. Some hand weed control needed during establishment.
Length of Establishment Phase:	2 months
Active Growth Phase:	after initially slow seedling establishment, plants grew rapidly - no seed was produced during the first year. Fall and spring fertilization of low rates (50 lbs / acre) N and 15 lbs / acre was applied to maintain plots. A heavy infestation of caterpillars was easily controlled by a single application of Dipel (Bacillus thuringiensis) and plants recovered quickly.
Length of Active Growth Phase:	May - July
Hardening Phase:	In August and September, powdery mildew was noted. Clipping back foliage in late summer to crown level had a slight influence on advancing regrowth the following spring.
Length of Hardening Phase:	2 months
Harvesting, Storage and Shipping:	Cleaned seed held in cool dry storage conditions
Length of Storage:	not determined
Other Comments:	The small seed increase block at the Corvallis PMC (0.1 acre) thrived and produced seed for over 4 years; however seeds are also easily collected in native stands and this may be the most economical for small to medium sized projects.
References:	Corvallis Plant Materials Center Technical Report: Plants for Woodland and Rangeland Reclamation and Erosion Control 1980 - 1997 (includes Annual Reports to Mount Rainier National Park from 1990 - 1996 Link, Ellen, ed. 1993 Native Plant Propagation Techniques for National Parks Interim Guide; Compiled by Rose Lake Plant Materials Center 7472 Stoll Road East Lansing, MI 48823 USDA, NRCS. 2001. The PLANTS Database, Version 3.1 (http://plants.usda.gov). National Plant Data Center, BatonRouge, LA 70874-4490 USA.

Citation:

Flessner, Theresa R; Trindle, Joan D.C.. 2003. Propagation protocol for production of Propagules (seeds, cuttings, poles, etc.) Artemisia ludoviciana Nutt. seeds Seed; USDA NRCS - Corvallis Plant Materials Center Corvallis, Oregon. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2025/04/03). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.