Larix laricina 'KBN WB' / KBN WB tamarack

Larix laricina 'KBN WB' is a vigorous, broadly upright growing selection of tamarack with densely packed, semi-fastigiate branches holding light green foliage that turns straw yellow before being shed in the fall. After 10 years of growth, a mature specimen will measure 6 feet (2 m) tall and 4 feet (1.3 m) wide; an annual growth rate of 6 to 8 inches (15 - 20 cm).

This cultivar originated as witch's broom found in the 1980s by Greg Williams of Wolcott, Vermont. He named using the initials of his nursery through which he introduced the plant; Kate Brook Nursery = KBN; WB = witch's broom.

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Larix laricina 'KBN WB' — a closeup of foliage detail.
Photo by Bill Barger
Larix laricina 'KBN WB' — a mature specimen in an arboretum setting.
Photo by Bill Barger

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