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    Author(s): Norman P. Worthington
    Date: 1955
    Source: PNW Old Series Research Notes No. 111, p. 1-5
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: Download Publication  (300 KB)


    Test plantings have been made on the Hemlock Experimental Forest in cooperation with the St. Regis Paper Company to test suitability of several native conifers for planting on heavy bracken and brush-covered Site II areas typical of the western Olympic Peninsula. In the spring of 1950, 2,500 Douglas-fir seedlings from the Forest Industries Tree Nursery at Nisqually were planted. In 1952, planting was continued with 1,000 Sitka spruce, 500 grand fir, and 1,000 western redcedar from the U. S. Forest Service Nursery at Wind River, and in 1953 with 2,500 western hemlock, a gift of the British Columbia Forest Service. Spacing was 6 x 6 feet for all species except hemlock, which was spaced 4 x 4 feet. The latest remeasurement of the plantations was made on January 26 and 27, 1955. Species suitability is rated according to:

    1. Survival
    2. Height growth
    3. Immunity to animal damage

    Publication Notes

    • Visit PNW's Publication Request Page to request a hard copy of this publication.
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Worthington, Norman P. 1955. A comparison of conifers planted on the Hemlock Experimental Forest. PNW Old Series Research Notes No. 111, p. 1-5

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