Picea glauca 'Thomson' / Thomson white spruce

Broad upright plant with thick needles.

1987 - Introduced as a graft from a witches' broom found in Thomson, IL. The original broom was found by Randy Dykstra and Chub Harper. The original broom was a unique hanging broom that occurred as a single at the end of a branch. The broom broke off in 1991 because of a heavy snow load.

Picea glauca (Thomson) WB The Harper Collection of Dwarf & Rare Conifers located at Hidden Lake Gardens in Tipton, MI. Photo taken August of 2005.
Photo by Dax Herbst

Picea glauca 'Thomson' / Thomson white spruce

RECOMMENDED HARDINESS ZONES:
5 (-10 to -20 F / -23.3 to -28.9 C)

HORTICULTURAL STATUS: Provisional
ORIGIN: Witch's Broom
COLOR: Blue Green
TRINOMIAL TYPE: Cultivar
GROWTH SHAPE: Broad Upright or Oval
GROWTH SIZE: Dwarf: 1 to 6 inches (2.5 – 15 cm) per year / 1 to 5 feet (0.3 – 1.5 m) after 10 years

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Picea glauca 'Thomson' / Thomson white spruce

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