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Helianthella (uniflora)

Matthew Utley
Conservation Horticulturist
Red Butte Garden
300 Wakara Way
Salt Lake City, Utah 84108
801-587-9951
801-585-0516 (fax)
Matthew.Utley@redbutte.utah.edu
http://www.redbuttegarden.org/

Family Scientific Name: Asteraceae
Family Common Name: Sunflower
Scientific Name: Helianthella uniflora (Nutt.) Torr. & Gray
Common Name: One Head Mounding Sunflower
Species Code: HEUN
Ecotype: University of Utah Heritage Preserve
Propagation Goal: plants
Propagation Method: seed
ProductType: Container (plug)
Time To Grow: 3 Months
Target Specifications: Spring Plant out.
Propagule Collection: Seeds were hand collected October 31, 2005 and stored dry at 2-4 Celsius until use (3 months).
Pre-Planting Treatments: 2 replicates of 10 seeds each recieved a cold and moist treatment of 2-4 Celsius for 0, 2, 4, and 6 weeks. The petri dishes were checked for germination for a period of 3 weeks following there treatments. The results were that O weeks produced 0% germination, 2 weeks produced 40%, 4 weeks produced 45% germination, 6 weeks produced 45% germination.
A short cold and moist period of at least 2-4 weeks at 2-4 Celsius enhanced germination of this species.
Growing Area Preparation/
Annual Practices for Perennial Crops:
Seeds were moved to 20D/10N following pretreatment. Seeds wre held with 12 hrs light durring all stages of germ trial.
Establishment Phase: Germlings were moved to Rootrainers containing High porosity premier brand medium following germination

Citation:

Utley, Matthew C.. 2006. Propagation protocol for production of Container (plug) Helianthella uniflora (Nutt.) Torr. & Gray plants Red Butte Garden Salt Lake City, Utah. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/07/23). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.