Thalictrum (dioicum)
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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: | Ranunculaceae | ||
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| Family Common Name: | Buttercup Family | ||
| Scientific Name: | Thalictrum dioicum L. | ||
| Common Name: | Early meadow rue | ||
| Species Code: | THDI | ||
| General Distribution: | Rich deciduous woods, dappled sunlight and thickets along rivers. Glabrous leaflets are thin in texture, with flat (not revolute) margins; the achenes are shorter, less prominently beaked. Ternately compound leaves and most ample terminal panicles of greenish, yellowish, purplish or white flowers. | ||
| 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. Flowers from early July through September. Seed is harvested throughout the summer, the majority in August-September. The fruit is an achene. | ||
| Propagule Processing: | Dry seeds for 1 to 2 weeks in open paper bags or open Rubbermaid-style bins. Seed is not cleaned. Once seeds have dried begin stratification. | ||
| Pre-Planting Treatments: | Stratification: Mix the seeds with an equal amount of vermiculite or perlite, adding enough water to barely saturate the mixture for at least two months in a Rubbermaid-style container or Ziploc-style bag in a refrigerator or cold garage. Can stratify longer than 2 months with no adverse effects. Keep in a cool dry place, until planted. Seeds have been stored up to 3 years. | ||
| Growing Area Preparation/ Annual Practices for Perennial Crops: |
Propagation Environment: Greenhouse film is made of Standard U.V. 3HL Clear 6 mil from (J.R. Johnson's Greenhouse Supply Inc.) Fans run continuously to circulate the air. Vents open during the summer months to allow for cooling. Container Type: Early meadow-rue grows best in 14"x8.5" trays having 24 cells, each cell being 2" in diameter and 4" deep. 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 so that the soil does not fall out. Fill cells with damp soil to the top and press soil down with a spoon. Refill the cell plugs with soil to the top, this time not pressing it down. Thoroughly moisten soil in the plug cells, but do not saturate. Sow the 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. This species may grow relatively quickly and germinate successfully or it may prove difficult to sow. Be persistent. |
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| Establishment Phase: | From Jan. thru Aug. the greenhouse temperature 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. thru 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 does not need to be kept consistently moist. Move trays to cooler north greenhouse tables. No fertilizers are used. | ||
| Hardening Phase: | In early-late spring, mature plants can be moved into a cold frame with a cover of material that diffuses sunlight to prevent scorching of the plants. When 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. | ||
| Other Comments: | Markedly smaller than T. dasycarpum and earlier to flower. A nice choice for spring wildfower gardens. | ||
Citation:
Schultz, Jan; Beyer, Patty; Williams, Julie. 2002. Propagation protocol for production of Container (plug) Thalictrum dioicum L. plants USDA FS - Hiawatha National Forest Marquette, Michigan. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/05/01). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.
