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The Forest Service National Center for Reforestation, Nurseries, and Genetic Resources (RNGR) is a leading source of technical information for nurseries and land managers regarding production and planting of trees and other native plants for reforestation, restoration, and conservation.

 
NPN Protocol Details Image

Gratiola (ebracteata)

Amy Bartow
Seed and Plant Production Manager
USDA NRCS - Corvallis Plant Materials Center
3415 NE Granger Ave
Corvallis, Oregon 97330
(541) 757-4812 ext 103
(541) 757-4733 (fax)
amy.bartow@or.usda.gov
http://plant-materials.nrcs.usda.gov/orpmc
Family Scientific Name: Scrophulariaceae
Family Common Name: Figwort Family
Scientific Name: Gratiola ebracteata Benth.
Common Name: Bractless hedge-hyssop
Species Code: GREB
Ecotype: Seeds were collected from Lane Co., Oregon near Eugene.
Propagation Goal: seeds
Propagation Method: seed
ProductType: Propagules (seeds, cuttings, poles, etc.)
Time To Grow: 0
Target Specifications: Grow plugs for seed increase.
Propagule Collection: These small annuals are grown in small "cone-tainers". Entire plants are cut down once they have completed their life cycle. Material is dried in an open greenhouse and then threshed using a hammermill. Capsules are quite hard.
Propagule Processing: Seeds were cleaned using a small air screen machine.
Growing Area Preparation/
Annual Practices for Perennial Crops:		 Seeds were sown into cone-tainers filled with Sunshine #1 (a soil-less, peat-based media) amended with micro-nutrients (Micromax) and a slow-release fertilizer (Osmocote 14-14-14).Flats of cone-tainers were placed in an unheated greenhouse. Seeds germinate faster in a warm greenhouse, but will germinate in cool temperatures.

Citation:

Bartow, Amy. 2007. Propagation protocol for production of Propagules (seeds, cuttings, poles, etc.) Gratiola ebracteata Benth. seeds USDA NRCS - Corvallis Plant Materials Center Corvallis, Oregon. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/07/03). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.