Solidago (canadensis)

John M. Englert USDA NRCS - Norman A. Berg National Plant Materials Center Bldg. 509, BARC - East, E. Beaver Dam Road Beltsville, Maryland 20705 (301) 504-8175 (301) 504-8741 (fax) john.englert@wdc.usda.gov http://plant-materials.nrcs.usda.gov/mdpmc/

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Family Scientific Name:	Asteraceae
Family Common Name:	Aster Family
Scientific Name:	Solidago canadensis
Common Name:	Canada goldenrod
Species Code:	SOLCAN
Ecotype:	George Washington Memorial Parkway
General Distribution:	Throughout U.S. and southern Canada and Alaska. Found in moist or dry soils, common in open places.
Propagation Goal:	plants
Propagation Method:	seed
ProductType:	Container (plug)
Time To Grow:	0
Target Specifications:	Stock Type: Container plug. Height: 4-6" after cutbacks. Root System: Firm full plug.
Propagule Collection:	Collected at George Washington Memorial Parkway, Spout Run Exit by J. Englert on 11/13/95.
Propagule Processing:	Seed Processing: Any large pieces of chaff are removed by hand; otherwise, seed is relatively uncleaned. Seeds/Kg: N/A. Germination: Untested. 1997 yield was 2,200 seedlings per gram of seed sown. Purity: N/A.
Pre-Planting Treatments:	Seed Treatments: With solidago species, we have found that uniformity and speed of germination is greatly improved by surface sowing the seed on moist media, covering the trays with plastic to trap moisture and placing the trays on heat mats set to keep the media around 80-86§F. The key appears to be warmth as trays given mist without heat did not germinate as quickly or uniformly.
Growing Area Preparation/ Annual Practices for Perennial Crops:	Propagation Environment: Greenhouse with alternating day/night temperatures; daytime temperatures varied from 70-85§F during the winter months depending on natural solar; night temperatures averaged around 65-68§F. Extended daylight provided from 4:30-10:30 with high intensity lights. Seed Propagation Method: Hand sown into plug trays. Container Type and Volume: Seed is sown into 392 plug trays and seedlings transplanted to 72 plug trays or Ropak multipots. Growing Media: Germination mix is used for starts in 392's. For 72 plug trays and multipot containers: Sunshine #1 or #5 potting mix, amended with 18-6-8,180-day Nutricote SR at 0.15 lb./cu. ft., or 20 oz. per 3.8 cu. ft. bale of potting media.
Establishment Phase:	Sowing Date: Fall or winter. % Emergence and Date: 6-7 days. Sowing/Planting Technique: Seed is heavily sown onto germination mix in propagation plug trays, kept evenly moist and given bottom heat until germinated. Establishment Phase: Seedlings were transplanted to multipots about 4 weeks from germination.
Active Growth Phase:	Rapid Growth Phase: Cutback of foliage was performed at about 10 weeks. Fertilized lightly approximately bi-weekly or as needed with soluble fertilizer at approximately 75-100 ppm N.
Hardening Phase:	Hardening Phase: Two weeks prior to outplanting, the greenhouse is cooled down or plugs are moved outdoors, depending on weather, and fertilization is stopped.
Harvesting, Storage and Shipping:	Total Time to Harvest: About 14 weeks. Harvest Date: Plugs are not overwintered. Seed storage: In seed bags in National Plant Materials Center cooler at 40§F and 35% relative humidity. Seed dormancy: None indicated.
References:	Brown, M. L. and R. G. Brown. 1984. Herbaceous Plants of Maryland. Port City Press, Inc. Gleason, H. A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern.

Citation:

Davis, Kathy M.; Kujawski, Jennifer. 2001. Propagation protocol for production of Container (plug) Solidago canadensis plants USDA NRCS - Norman A. Berg National Plant Materials Center Beltsville, Maryland. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/05/18). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.