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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

Capparis (sandwichiana)

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: Capparaceae
Family Common Name: Caper Family
Scientific Name: Capparis sandwichiana DC.
Common Synonym: Capparis sandwichiana DC. zoharyi
Common Name: Maiapilo
Species Code: CAPSAN
Ecotype: Hawaii
General Distribution: Endemic to Hawai'i. Scattered on coral, basaltic rocks, or in soil along the
coast or somewhat inland, 0-100 m elevation. Historically known from Midway Atoll,
Pearl and Hermes Atoll, and Laysan, but thought to be extirpated from these locations
today. It is present on all of the main islands. On Midway, Maiapilo was known from Eastern Island
where it was last collected in 1923 by E. L. Caum in the central plain of the island.
Propagation Goal: plants
Propagation Method: vegetative
ProductType: Container (plug)
Stock Type: 3.5 in containerized cutting
Time To Grow: 1 Years
Target Specifications: Height: N/A<br> Caliper: N/A<br> Root System: Firm root plug in container.<br>
Propagule Collection: Because it no longer occurs in the Northwestern Hawaiian
Islands, cuttings will have to be obtained from the main islands where Maiapilo is also
declining due to loss of habitat. It is locally abundant in rocky, lava, coastal sites of the
main islands.
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: 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. Cut plants
into desired lengths, at least 3 nodes per strand (6-8 inches in length). Place about 3
strands in each pot. This is done because the success rate for cuttings is usually not 100%
but more like 75-80% and so using a few strands per pot increases the likelihood that at
least 1 strand per pot will be successful. Rooting hormone is used for this species. Fill the rest of the pot with potting mix.
Growing Area Preparation/
Annual Practices for Perennial Crops:
Water daily. 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.
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: Cuttings will form roots within 2 to 4 weeks.
This species can be difficult to propagate and trials are needed to establish best concentration of rooting hormone to use for best rooting percentages.
Length of Establishment Phase: 1 to 2 months
Length of Active Growth Phase: 8 to 10 months
Other Comments: Pests and diseases: Leaves are mined by native Plutella moths on the main islands and it
is suspected the alien diamond back moth (Plutella xylostemma) here on Midway would
also mine leaves, however, plants usually survive. None others known.
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) Capparis sandwichiana DC. 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.