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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

Sidalcea (cusickii)

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: Malvaceae
Family Common Name: Mallow family
Scientific Name: Sidalcea cusickii Piper
Common Name: Cusick's checker-mallow
Species Code: SICU
Ecotype: Seeds were collected in Lane Co. near Eugene.
Propagation Goal: plants
Propagation Method: seed
ProductType: Container (plug)
Time To Grow: 0
Pre-Planting Treatments: Seeds were scarified useing a small oat dehuller lined with 320 grit sandpaper, then 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). The flats of cone-tainers were covered with poly-ethylene bags and placed in a walk-in cooler (35-40 degrees) for 45 or 90 days. Some flats were placed in a greenhouse as a "control"
Growing Area Preparation/
Annual Practices for Perennial Crops:		 Flats were removed from the cooler after 90 days and placed in a greenhouse set at moderate temperatures (70 degrees days/50 degrees nights).
Other Comments: No difference was noted between the stratified and non-stratified seeds. Continued to germinate all year long. Scarification helps inital germination, but will only raise the inital germination to about 50% (depending on the seed lot).

Citation:

Bartow, Amy L. 2007. Propagation protocol for production of Container (plug) Sidalcea cusickii Piper plants USDA NRCS - Corvallis Plant Materials Center Corvallis, Oregon. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/07/01). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.