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Boxelder
Acer negundo
Budburst user
Boulder,
CO
Boulder,
CO
(Lat: 40.015781, Long: -105.296360)
November 6, 2025
Phenology observation
Leaves Unfolding
All leaves unfolded
All or most leaves are fully unfolded.
All leaves unfolded
All or most leaves are fully unfolded.
Flowers
None
No flowers or pollen visible.
None
No flowers or pollen visible.
Fruit
Middle Fruiting
Half or more branches have ripe fruit or dropping seeds. If fruits are clustered, one or more fruit must be ripe on half or more branches.
Middle Fruiting
Half or more branches have ripe fruit or dropping seeds. If fruits are clustered, one or more fruit must be ripe on half or more branches.
Autumn Leaf Color Change
All leaves changed color
All or most leaves have changed color.
All leaves changed color
All or most leaves have changed color.
Autumn Leaves Dropping
50% Leaf Drop
Half or more of the leaves have fallen off the tree or shrub.
50% Leaf Drop
Half or more of the leaves have fallen off the tree or shrub.
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