Pine Needle Drop Timing: Fall for Most, Spring for Some Species

General Rule: Fall Shed

Most evergreens drop oldest needles in autumn (October–November). This includes arborvitae and white pine—the most dramatic shedders.

White Pine Specifics

• Carries 3 years' needles in summer, 2 in winter.
• Some years: only current year's needles remain by November.
• Yellowing throughout canopy = normal, not disease.

Spring Shedders

Some species (certain pines, spruces) shed in spring/early summer. Each species has its own calendar.

Maine Context

In Maine (zone 4–5), expect heavy white pine needle drop late October–November. Rake or mulch into beds—excellent acid mulch for rhododendrons, blueberries.