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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

Gentiana (sceptrum)

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: Gentianaceae
Family Common Name: Gentian family
Scientific Name: Gentiana sceptrum Griseb.
Common Name: king's sceptor gentian
Species Code: GESC
Ecotype: Seeds were collected from Lane Co., Oregon near Eugene
Propagation Goal: plants
Propagation Method: seed
ProductType: Container (plug)
Time To Grow: 0
Pre-Planting Treatments: 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 were covered with polyethlene bags and placed in the walk-in cooler for 90-days. After stratification, the flats was placed in a greenhouse set at modest temperatures (70 degree days/50 degree nights). Sparse gerination occured 6 weeks after removal froms the cooler. A control flat was left outside over winter good germination was noted in the spring. One flat was placed directly in the greenhouse after being sown.This flat had zero germination.
Establishment Phase: Seedlings grew slowly in the spring.
Active Growth Phase: A small basal rosette was produced the first summer.
Hardening Phase: Plants appeared to go dormant in fall, the basal leaves turning purple. In late fall, new shoots emerged and basal leaves withered.
Other Comments: This plant probably needs light, and flucuating temperatures durring stratifcation to break seed dormancy.

Citation:

Bartow, Amy L. 2004. Propagation protocol for production of Container (plug) Gentiana sceptrum Griseb. plants 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.