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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

Scaevola (sericea)

Kim Martz and Forest Starr
Biologists
USDI USFWS - Midway Atoll National Wildlife Refuge
Midway Atoll National Wildlife Refuge,1082 Makepono St.
Honolulu, Hawaii 96819
http://www.ggnpa.org

Family Scientific Name: Goodeniaceae
Family Common Name: Goodenia Family
Scientific Name: Scaevola sericea Vahl.
Common Name: Naupaka kahakai
Species Code: SCASER
Ecotype: Midway Atoll
General Distribution: Indigenous to Hawai'i. Naupaka is distributed from India to Hawai'i, and is
found on all the major archipelagoes of Polynesia and Micronesia. It is one of the most
common littoral shrubs, often forming dense thickets on rocky and sandy coasts
throughout the area. In Hawai'i, common in coastal sites throughout the Hawaiian
archipelago, except on Gardner Pinnacles, Necker and Nihoa. On Midway Atoll,
naupaka is common in coastal sites and some sites inland.
Propagation Goal: plants
Propagation Method: vegetative
ProductType: Container (plug)
Stock Type: 3.5 in containerized cutting
Time To Grow: 6 Months
Target Specifications: Height: N/A<br> Caliper: N/A<br> Root System: Firm root plug in container.<br>
Propagule Collection: For collection of native plants to propagate by cuttings, you will
need: gloves, clippers, zip-lock or plastic garbage bag for collection, and some water.
Collect plants from the site, taking care to take only what you need. Collect from areas
that have a large enough population so that damage will be minimal. Gently pull or cut
strands of plants from main patch. Place in trash bag or plastic bag. Add a small amount
of water to bag and store in a dry, cool, shady area.
Propagule Processing: Cuttings can be stored overnight, but immediate propagation following collection is best.
Pre-Planting Treatments: For cuttings, choose use stems that are at least 1
cm in diameter. Fairly large branches can be used, about 30 to 50 cm long or longer.
Collect portions from young growth with at least 3 nodes. Rooting hormone can be used.
Mortality should be minimal.
Work in a shady area once back in the nursery. Use clean 3 «"
pots arranged in tray. Use well drained potting mix. Fill pots about 1/3 full.
Cuttings need to be kept in a moist humid environment. In the nursery, this
can be achieved by misting plants several times during the day to keep them moist.
Growing Area Preparation/
Annual Practices for Perennial Crops:
The nursery's irrigation system is comprised of sprinkler heads which are
manually operated. The sprinklers are misters and should be maintained so that they flow
freely. Potted plants are watered daily, either in the morning or the evening.

Potting media is Sunshine Mix potting soil, and is used in a 2 to 1 or 3 to 1 (v:v) potting soil to sand ratio.

Diseases and insects are controlled by removing them manually off plants, sticky traps or using a solution of soapy water.
Be sure to rinse soapy solution off plants after a few hours. Row covers physically prevent insects and birds from landing on plants.
Establishment Phase: Plants will begin to develop roots as early as a couple weeks.
Length of Establishment Phase: 1 month
Length of Active Growth Phase: 5 months
Other Comments: Pests and diseases: Spider mite infestations have occurred in the nursery. Infestations
can be overcome by power washing of leaves and rubbing spider mites off persistently.
Make sure plants have sufficient air flow and are getting enough water. Infestations have
been overcome using these methods in the past in about a month, so be persistent.
References: Bornhorst, H. L. 1996. Growing native Hawaiian plants, a how-to guide for the
gardener. The Bess Press, Inc., Hong Kong.
Bruegmann, M. M. 1998. Report on a botanical survey of Midway Atoll, April 1-7,
1995. U. S. Fish and Wildlife Service.
Christophersen, E. and E. L. Caum. 1931. Vascular Plants of the Leeward Island.
Hawai'i. Bernice P. Bishop Museum Bulletin 81, Tanager Expedition Publication
Number 7, Honolulu.
Lilleeng-Rosenberger, K. date unknown. Propagation techniques for native Hawaiian
plants. National Tropical Botanical Garden.
Morin, M. and S. Conant. 1998. Laysan Island ecosystem restoration plan. University
of Hawai'i.
Neal, M. C. 1965. In gardens of Hawai'i. Bishop Museum Press, special publication 50,
Honolulu.
Wagner, W. L., D. R. Herbst, S. H. Sohmer. 1990. Manual of the flowering plants of
Hawai'i, 2 vols. Bishop Museum Special Publication 83, Honolulu.
Whistler, W. A. 1992. Flowers of the Pacific island seashore. University of Hawai'i
Press, Honolulu.

Citation:

Martz, Kim; Starr, Forest. 2003. Propagation protocol for production of Container (plug) Scaevola sericea Vahl. plants 3.5 in containerized cutting; USDI USFWS - Midway Atoll National Wildlife Refuge Honolulu, Hawaii. 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.