Achillea (millefolium)
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Dave Skinner PMC Farm Manager USDA NRCS - Pullman Plant Materials Center Room 211A Hulbert Hall WSU Pullman, Washington 99164-6211 509-335-9689 509-335-2940 (fax) abbie@wsu.edu http://plant-materials.nrcs.usda.gov/wapmc |
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| Family Scientific Name: | Asteraceae | ||
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| Family Common Name: | Sunflower | ||
| Scientific Name: | Achillea millefolium L. | ||
| Common Synonym: | Achillea lanulosa | ||
| Common Name: | Western Yarrow | ||
| Species Code: | ACMI2 | ||
| Ecotype: | Pullman area | ||
| General Distribution: | Widespread circumboreal species, usually on dry, open sites. | ||
| Propagation Goal: | plants | ||
| Propagation Method: | seed | ||
| ProductType: | Container (plug) | ||
| Time To Grow: | 3 Months | ||
| Target Specifications: | Tight root plug in container | ||
| Propagule Collection: | Seeds are collected when they are a light tan in color and easily removed from the inflorescence. Heads are cut from the plants at this point and stored in paper bags at room temperature until cleaning. | ||
| Propagule Processing: |
Seed heads are rubbed to separate and then cleaned with an air column separator. Larger amounts are threshed with a hammermill and cleaned with air screen equipment. Cleaned seed is stored at 40 degrees F. and 40% relative humidity. We determined 2,835,000 seeds/lb for this ecotype. |
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| Pre-Planting Treatments: | none | ||
| Growing Area Preparation/ Annual Practices for Perennial Crops: |
In January, seeds are sown directly into 10 cu. in. Ray Leach Super Cell conetainers filled with Sunshine #4 planting media and covered lightly. A thin layer of pea gravel is used to prevent seed and media from floating during initial watering. | ||
| Establishment Phase: | Media is kept moist during germination. Germination is usually begins in 6-7 days and is complete in two weeks. | ||
| Length of Establishment Phase: | 2 weeks | ||
| Active Growth Phase: | Plants grow quickly after germination. They are water deeply every other day and fertilized once per week with a water soluble, complete fertilizer containing micronutirents. | ||
| Length of Active Growth Phase: | 60 days | ||
| Hardening Phase: | Plants are moved to a cold frame in late March or early April, depending on weather. | ||
| Length of Hardening Phase: | 3-4 weeks | ||
| References: | Flora of the Pacific Northwest. Hitchcock and Cronquist. University of Washington Press. 1973 | ||
Citation:
Skinner, David M,. 2003. Propagation protocol for production of Container (plug) Achillea millefolium L. plants USDA NRCS - Pullman Plant Materials Center Pullman, Washington. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/11/23). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.
