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Budburst user
Chicago, IL
April 26, 2026

Phenology observation

Leaves Unfolding
ALL UNFOLDED MIDDLE FIRST EARLY BUD BURST NONE
All leaves unfolded
All or most leaves are fully unfolded.
Flowers
LATE MIDDLE EARLY FIRST BUD BURST NONE
Late Flowering
Most flowers have wilted or fallen off (over 95%) or most pollen has fallen.
Notes
the sugar maple tree entered its flowering stage. Small yellow-green flowers appeared throughout the branches before the canopy was fully developed. Some of the flowers fell to the ground, which is a normal part of the tree's reproductive cycle. This stage helps the tree prepare for seed production later in the growing season. The tree also provided increasing shade along the sidewalk as the canopy continued to fill in during the spring season.

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