Rosie Lerner, Extension Consumer
Horticulturist, Department of Horticulture, Purdue University
This is a dwarf spruce (probably a
Dwarf Alberta Spruce or similar) that is reverting back to the
original species. The dwarf versions are the mutated forms and
occasionally, they will have a bud that reverts back to the normal
species. The normal species will be far more vigorous and obviously
much larger than the dwarf and that shoot should be removed asap.
Make the pruning cut as close to the origin as possible without
wounding the main trunk. If allowed to remain, it will quickly
dominate the plant.
Photos courtesy of John Knipp,
Jay County Extension Educator