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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

Rubus (parviflorus)

Betty Young
Nurseries Sr Manager
Bldg 201, Fort Mason
San Francisco, California 94123
415-331-6917
415-331-7521 (fax)
byoung@ggnpa.org

Family Scientific Name: Rosaceae
Family Common Name: Rose Family
Scientific Name: Rubus parviflorus Nutt.
Common Name: Thimbleberry
Species Code: RUBPAR
Ecotype: Muir Woods, California
General Distribution: R. parviflorus is found from Alaska to southern California and inland to the Great Lakes region, through the Rocky Mountains to New Mexico and northern Mexico.
Propagation Goal: plants
Propagation Method: vegetative
ProductType: Container (plug)
Stock Type: Deepot 40
Time To Grow: 0
Target Specifications: Height: N/A<br> Caliper: N/A<br> Root System: Firm plug in container.
Propagule Collection: Semi-Hardwood cuttings are collected between June 1st and July 31st.
Cutting length is 5 inches.
Propagule Processing: Cuttings are kept moist and cool prior to treatment.
Pre-Planting Treatments: Cuttings are dipped in a mild bleach solution for 30 seconds.
Cuttings are treated with Hormex (1000 ppm IBA) rooting powder and struck in flats containing 4:1 Perlite/Vermiculite.
Cuttings are struck 2 inches deep in flats.

% Rooting:60%
Growing Area Preparation/
Annual Practices for Perennial Crops:
Fully Controlled Greenhouse.
Flats are kept in the greenhouse and watered with an automatic mist system until roots are fully developed. Bottom heat is used.
Establishment Phase: Planting Method: Transplanting Cuttings.

Time to Transplant:60 days
Cuttings are transplanted to individual containers 2"x10" tubes (Deepot 40) containing standard potting mix of peat moss, fir bark, perlite, and sand. Cuttings are placed in the shadehouse.
Transplant Survival averages 30%. high Moratlity after transplanting; recommend a very well drained media.
References: A California Flora and Supplement, Munz, P., University of California Press, Berkeley and London, 1973.

Citation:

Young, Betty. 2001. Propagation protocol for production of Container (plug) Rubus parviflorus Nutt. plants Deepot 40; San Francisco, California. 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.