Osmorhiza (longistylis)
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Jan Schultz Forest Plant Ecologist USDA FS - Hiawatha National Forest 1030 Wright Street Marquette, Michigan 49855 906.228.8491 906.228.4484 (fax) jschultz@fs.fed.us http://plant-materials.nrcs.usda.gov/copmc/ |
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| Family Scientific Name: | Umbelliferae | ||
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| Family Common Name: | Parsley Family | ||
| Scientific Name: | Osmorhiza longistylis Torrey | ||
| Common Name: | Sweet cicely | ||
| Species Code: | OSLO | ||
| General Distribution: | Rich, often moist areas, deciduous woods. Flowers are white. 1 to 3 feet in height. | ||
| Propagation Goal: | plants | ||
| Propagation Method: | seed | ||
| ProductType: | Container (plug) | ||
| Time To Grow: | 0 | ||
| Propagule Collection: | Seed is collected by hand from locally native plants within the eastern central Upper Peninsula of Michigan. Flowers from May to July. Seed is a ridged pod, elongate with pointed ends. Strong licorice odor when bruised. | ||
| Propagule Processing: | Dry seeds for 1-2 weeks in open paper bags or open Rubbermaid-style bins. Seeds are not cleaned. Once seeds have dried begin stratification. | ||
| Pre-Planting Treatments: | Stratification: Seal the seeds in Ziploc-style bag or Rubbermaid-style container with an equal mix of seeds and perlite or vermiculite. Add just enough water to barely saturate the mixture and store in a refrigerator orcold garage (42 degrees F) for at least 2 months. Cold store until planted (up to 3 years). | ||
| Growing Area Preparation/ Annual Practices for Perennial Crops: |
Propagation Environment: Greenhouse made of standard U.V. 3 HL Clear 6 mil from (J.R. Johnson Supply Inc.) Fans run continuously to circulate the air. Vents open during the summer months to allow for cooling. Container Type: Sweet cicely grows in a variety of cell types. It grows especially well in a 24 cell (2"in diameter) 14"x8.5"x4" deep trays. Further sowing of seed may determine a more accurate type of cell to use for sweet cicely. Growing Media: Scotts Redi-earth Plug and Seedling Mix. Contains vermiculite and sphagnum peat moss. Soil is sterile. Add enough water to the soil to saturate. Mix soil with a trowel. Cover the holes in the bottom/sides of the plug tray cells with newspaper, as the soil will fall through. Fill cells with damp soil and press soil down with a spoon. Refill the cells plugs with soil to the top this time not pressing it down. Thoroughly moisten soil in the plug cells, but do not saturate. Sow seeds by hand at a rate of about 3 seeds in each cell. Cover the seeds with a thin layer of soil or gently press the seeds into the dirt. Sow year-round due to variable germination rates. |
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| Establishment Phase: | From Jan. thru Aug. the greenhouse thermostat is set at 65 degrees F both day and night. Ambient greenhouse temperatures may reach 100 degrees F during the day in the summer. From Sept. through Dec. the thermostat is set at 55 degrees F. During this season ambient greenhouse temperatures may reach 75 degrees F during the day. The greenhouse holds plants at all stages of growth so the temperature setting stays the same for all plants at all stages of growth. Soil is kept consistently damp during germination. Water using a fine mist or light hose setting only. Newly planted trays are placed on the south side of the greenhouse. No artificial light is used. | ||
| Active Growth Phase: | The soil doesnot need to be consistently moist. Move trays to cooler north greenhouse tables. No fertilizers are used. | ||
| Hardening Phase: | In early-late spring, mature plants are moved into a cold frame with a cover of material that diffuses sunlight to prevent scorching of the plants. Once danger of frost has passed leave plants outside. Water less frequently. | ||
| Harvesting, Storage and Shipping: | In the Upper Peninsula, flats are out-planted from late May to early October. Flats that are not planted in the summer remain in the greenhouse for another season. Transplant plugs if needed. | ||
| Other Comments: | Excellent forage species (a favorite of bears!) Direct seeds well on rich sites. | ||
Citation:
Schultz, Jan; Beyer, Patty; Williams, Julie. 2002. Propagation protocol for production of Container (plug) Osmorhiza longistylis Torrey plants USDA FS - Hiawatha National Forest Marquette, Michigan. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/07/02). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.
