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Proceedings of the International Plant Propagator's Society

Vol. 16

Title:
HARD TO ROOT WOODY PLANTS

Author:
Alfred J. Fordham

pp: 190-192

Abstract:
In 1954 the Arnold Arboretum received a plant of Kalmia latifolia rubra from the Weston Nurseries of Hopkinton, Massachusetts. It was one of six selected from many thousands grown there through the years and was thought to be a seedling from one of Charles O. Dexter's specimens. Together with his important Rhododendron accomplishments, Dexter also made efforts to assemble superior forms of mountain laurel at his estate in Sandwich Massachusetts.

In 1957 when Roger Coggeshall was at the Arnold Arboretum, he worked with this clone and by using 2,4,5-TP succeeded in rooting 21 of 35 cuttings. They were made on the 20th of September and potted on the following 12th of February. The slides which follow show cuttings taken from plants of that propagation and they therefore are in a clonal line. Six 3-foot plants were moved into the greenhouse in the summer of 1965 so that soft wood cuttings could be processed as described by Alan D. Cook in Volume 10 of the Plant Propagator.

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