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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

Cicendia (quadrangularis)

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: Cicendia quadrangularis (Lam.) Griseb.
Common Name: Oregon timwort
Species Code: CIQU3
Ecotype: Seeds were collected from Lane Co., Oregon near Eugene
Propagation Goal: seeds
Propagation Method: seed
ProductType: Container (plug)
Time To Grow: 4 Months
Propagule Collection: This tiny plant produces a capsule that slowly splits open revealing many grey seeds that resemble fine grains of sand. Capsules were hand collected when the top just began to spilt. They were placed in paper seed collection envelopes to dry in a warm greenhouse.
Propagule Processing: Collection envelopes were hand threshed and empty capsules were scalped off. Hand screens were used to increase purity.
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 of conetainers were placed in greenhouse set at moderate temperatures (70 degree days/50 degree nights.) Seeds germinated readily with no treatment. Most seeds germinated within one to two weeks.
Establishment Phase: Plants are so small that they were left in conetainers to flower and produce seed.
Active Growth Phase: After four months they began to flower

Citation:

Bartow, Amy L. 2007. Propagation protocol for production of Container (plug) Cicendia quadrangularis (Lam.) Griseb. seeds USDA NRCS - Corvallis Plant Materials Center Corvallis, Oregon. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2025/04/25). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.