Tanacetum (bipinnatum)
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Asa Skinner Native Plant Specialist 613 Commercial Street Garibaldi, Oregon 97118 804-815-5167 asa@tbnep.org |
| Family Scientific Name: | Asteraceae | ||
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| Family Common Name: | Sunflower Family | ||
| Scientific Name: | Tanacetum bipinnatum | ||
| Common Synonym: | Tanacetum camphoratum | ||
| Common Name: | dune tansy, camphore tansy | ||
| Species Code: | TABI | ||
| Ecotype: | Dunes, sandy flats, bluffs, grassy slopes (Oregon Flora). Calcareous soils and coastal scrub (Flora of North America) Populations tend to be isolated in the low areas between dunes and along footpaths. | ||
| General Distribution: | Washington, Oregon, and California | ||
| Propagation Goal: | Plants | ||
| Propagation Method: | Seed | ||
| ProductType: | Container (plug) | ||
| Stock Type: | Ray-Leach 7in^3 “stubby” cone-tainer (SC7) | ||
| Time To Grow: | 6 months | ||
| Target Specifications: | Firmly rooted 7 in^3 plug with 6-8” of top growth | ||
| Propagule Collection: | Seed is easily collected by pulling entire clumps of seed off plants when heads and stems have turned black. Seed should crumble away from stems easily and have a sharp/sweet odor like pine resin. | ||
| Propagule Processing: |
Seed is readily cleaned by rubbing entire heads over a rough screen and then separating out chaff with an air separator. Seed heads can be loosened up by running clumps of flowers through a food processor with plastic dough blades. The resulting chaff and seed can then be run through an air separator. |
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| Pre-Planting Treatments: | Seeds are non-dormant, but fall sowing results in earlier germination in the spring and less seedling mortality if guarded from frost. | ||
| Growing Area Preparation/ Annual Practices for Perennial Crops: |
Grown in sowing soil consisting of: 60% grower peat moss (coarse) 10% coarse perlite 30% vermiculite (large grade) Wetting agent (aquagrow 2000M) 21-4-8 NPK Osmocote slow-release fertilizer |
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| Establishment Phase: |
Seeds germinate and establish slowly over a two-month period, especially in an unheated environment. Seed viability is relatively low (roughly 30%) and sowing multiple seeds per container is advisable. 1. SC7 tubes are dibbled to ¼” - ½” of head space and 10 seeds/tube are placed in each. 2. Tubes are topped with medium coarse vermiculite and placed in a shade structure until germination begins. 3. Once 50% of tubes have at least one germinant, the racks are moved to a heated greenhouse at 40-80F, which helps speed the germination of any remaining tubes. It is common for only 70% of tubes to end up with an actively growing tansy plant, even at this high sow-rate. |
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| Length of Establishment Phase: | 3 weeks | ||
| Active Growth Phase: |
Once germination has been forced with heat in the greenhouse, plants need to be quickly transferred back into open-air shade structures (50% shade) to reduce mortality from mildews. Seedlings need to be thinned and spaced before they reach 4” in height as their sprawling form will quickly decrease airflow in the middle of a crowded rack. Plants are irrigated through overhead misters at 20 minutes/3 times a week. No additional fertilization is required. |
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| Length of Active Growth Phase: | 3 months | ||
| Hardening Phase: | Plants do well being transplanted to a field site directly from the shadehouse in October. If plants are kept in a greenhouse, a two week hardening period outdoors is advisable. | ||
| Length of Hardening Phase: | 2 weeks | ||
| Harvesting, Storage and Shipping: | These plants are resilient to being stacked during shipping and will basally sprout to recover from leaf damage. | ||
| Outplanting performance on typical sites: | Remove competing vegetation with a hand hoe. If the ground is workable, use a 5” dibble to install plugs on 12” centers. Dune tansy is useful in increasing mid-late season nectar resources in dunes and headlands. | ||
| References: |
Carr, Gerald D. Tanacetum bipinnatum (L.) Sch. Bip. OregonFlora, Oregon State University. Accessed January 30, 2025. OregonFlora. Flora of North America. Tanacetum bipinnatum (L.) Sch. Bip. Flora of North America, eFloras.org. Accessed January 30, 2025. Flora of North America. U.S. Department of Agriculture, Natural Resources Conservation Service. “PLANTS Database: Tanacetum camphoratum (camphor tansy).” Accessed January 31, 2025. https://plants.usda.gov. 2014. Propagation protocol for production of Container (plug) Tanacetum camphoratum plants stubby containers; USDA NRCS - Corvallis Plant Materials Center Corvallis, Oregon. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2025/01/31). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources. |
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Citation:
Skinner, Asa M A. 2025. Propagation protocol for production of Container (plug) Tanacetum bipinnatum Plants Ray-Leach 7in^3 “stubby” cone-tainer (SC7); Garibaldi, Oregon. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2025/02/23). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.
