Saxifragaceae (Boykinia )

Protocol Information for:

Label_title:
Boykinia (occidentalis)

Family Names:

Family Scientific Name:
Saxifragaceae

Family Common Name:
Saxifrage

Scientific Names:

Genus:
Boykinia

Species:
occidentalis

Scientific Classification:

Scientific SubSpecies:

Species Authority:

Scientific SubAuthority:

Authors:

Lee E. Riley

Common Synonym:

Genus:

Species:

Synonym Classification:

Synonym SubSpecies:

Species Authority:

Synonym SubAuthority:

Other Information:

Common Name:
coastal brookfoam

Species Code:
BOOC2

Ecotype:
Rogue River-Siskiyou National Forest, Oregon

General Distribution:
California, Oregon, Washington, and British Columbia

Known Invasiveness:

Propagation Goal:
Plants

Propagation Method:
Seed

Product Type:
Container (plug)

Stock Type:
262 ml (16 in3) container

Grow Time:
16 weeks

Target Specifications:
Stock Type: Container seedling Root System: Firm plug in container.

Propagation Collection:

Propagation Processing/Propagule Characteristics:

Pre-Planting Propagule Treatments:
Seeds are placed in fine mesh bags into a 1% hydrogen peroxide (3:1 water/3% hydrogen peroxide) soak for 24 hours, rinsed, and placed in water for an additional 24 hours. Seeds do not require stratification.

Growing Area Preparation / Annual Practices for Perennial Crops:
Greenhouse growing facility. Seeds are directly sown into containers. Seeds are lightly covered with nursery grit. Growing medium used is 40:20:20:20 peat:composted fir bark:perlite:pumice with Nutricote controlled release fertilizer (18N:6P2O5:8K2O with minors; 180-d release rate at 21C) at the rate of 1.5 gram Nutricote per 262 ml container.

Establishment Phase:
Germination is fairly uniform and is usually complete in 14 days. Following germination, plants are fertilized with soluble 12-2-14-6Ca-3Mg at 75 ppm for 1 week.

Length of Establishment Phase:
2 to 3 weeks

Active Growth Phase:
Seedlings grow rapidly throughout the active growth phase. During the growing season, fertilization depends on weather. Soluble fertilizer (20-9-20 NPK, 20-18-18 NPK, or 17-5-24 NPK) at a rate of 100 to 150 ppm is applied weekly throughout the growing season. Flowering occurs in the first year if sown early late winter/early spring. Seed increase/collection can be done during the first growing season.

Length of Active Growth Phase:
14 weeks

Hardening Phase:
No dry-down is done to induce dormancy. Seedlings are moved to an outdoor growing area in early to mid September.

Length of Hardening Phase:
No dry-down is done to induce dormancy. Seedlings are moved to an outdoor growing area in early to mid September.

Harvesting, Storage and Shipping:
Harvest Date: Mid October Storage Conditions: Seedlings are usually outplanted in fall. No storage except in outdoor growing area. Plants are well irrigated prior to shipping and shipped in containers.

Length of Storage:

Guidelines for Outplanting / Performance on Typical Sites:

Other Comments:
Wetland classification: FAC B. occidentalis is most often found in shady areas along streams.

References:
Dorena Genetic Resource Center Propagation Records, unpublished. Calscape. nd. Coastal brookfoam Boykinia occidentalis. California Native Plant Society. https://calscape.org/Boykinia-occidentalis-(Brook-Foam)?srchcr=sc586a81cceaeba (accessed 14 Oct 2018). USDA Natural Resources Conservation Service. Boykinia occidentalis Torr. & A. Gray coastal brookfoam. URL: https://plants.usda.gov/core/profile?symbol=BOOC2 (accessed 14 Oct 2018).

Citation:
Riley, Lee E.. 2018. Propagation protocol for production of Container (plug) Boykinia occidentalis Plants 262 ml (16 in3) container; USDA FS - Dorena Genetic Resource Center Cottage Grove, Oregon. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2025/06/29). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.

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