How to tell if a tree is dead (or just dormant): 7 checks

How to tell if a tree is dead: 7 checks

Run each check on several branches, on more than one side. One brown twig is a dead twig; the same result all around the crown and down to the trunk is a dead tree.

1. Scratch testScrape a small patch of bark off a twig with a fingernail or pocketknife. Alive: the tissue underneath is green and moist. Dead: it is brown and dry. If it is brown, scratch again closer to the trunk; LSU AgCenter notes that the lower trunk and roots can still be alive when the top is not.
2. Bend testBend a year-old twig to a right angle. Alive: it flexes. Dead: it snaps cleanly and feels brittle. NC State Extension reads a year-old twig that breaks as a sign the tree is most likely dead, so test several before concluding anything.
3. BudsPinch or slice a bud at a branch tip. Alive: green inside. Dead: dry and brown. NC State calls the buds on new twigs the earliest tell, and on a bare tree in winter they are the easiest thing to check.
4. BarkLook for bark that has loosened or dropped off in sheets. Alive: bark is tight to the wood. Dead: it peels away from dry, bare wood. Mississippi State Extension lists loose bark as a sign that the wood beneath it has died.
5. Base and rootsWalk all the way around the trunk flare. Alive: firm bark at the soil line. Warning: soft or crumbly wood, lifted or cracked soil, dead roots. Root loss shows up later in the crown; MSU notes that branches die back after roots are lost to disease, injury or compaction.
6. FungiLook for mushrooms or shelf-like conks on the trunk, root collar or roots. MSU reads fruiting bodies as advanced decay already active inside the tree. A tree can be green and still rotten at the base; see mushrooms on trees.
7. Crown or needlesStand back and compare the top of the crown with the bottom. Alive: normal-size leaves, or on a conifer, browning only on the inner, older needles. Dying: thinning or dieback from the top, small or yellow leaves, brown branch tips. MSU rates dieback of about 30 percent of a pine’s crown or 50 percent of a hardwood’s as a moderate risk, and more as high.

Dead or dormant? What normal looks like by season

Most false alarms come from deciduous trees in spring. Bigleaf maple opens its flowers before its leaves, anywhere from March in the lowlands to June at high elevations (USDA Forest Service silvics manual). A bare maple in April is not a verdict; a deciduous tree with no buds or leaves by midsummer, and brittle twigs, may not recover (LSU AgCenter).

Evergreen conifers work the other way. A Douglas fir, redcedar, hemlock, pine or spruce is never bare in a normal year; it sheds its oldest, innermost needles gradually (WSU Extension). The exception is western larch, a deciduous conifer of the east slopes of the Cascades in Washington and north-central Oregon, northeastern Washington and the Blue and Wallowa Mountains.

Sources: USDA Forest Service silvics manual (bigleaf maple, western larch); WSU Extension; LSU AgCenter. Checked 2026-10-02.

Signs of a dying tree, and how urgent each one is

Over a house, road or line, a dying tree and a dead one need the same next step: an assessment before the wind season. The ISA calls dead branches “probably the most obvious potential hazards,” with the risk set by the size of the dead part and its distance from a target.

Sources: MSU Extension P3717; ISA; ODF; WSU Extension. Urgency is this site’s summary of their ratings. Checked 2026-10-02.

Why is my tree dying? Common Northwest causes

When a Washington or Oregon tree declines fast, the cause is usually one of these five, each with a pattern you can see from the ground.

Why a dead tree is a winter-storm problem

Dead wood fails first. Mississippi State Extension reports that more than 80 percent of trees that fail in storms have defects, notes that decay fungi go to work once a tree dies, and rates a standing dead tree as a high risk of failure and one with decay or cracks as extreme.

In Washington and Oregon those failures cluster in three months. NOAA’s Storm Events Database lists 20 deaths in the two states since 1996 where the person was under a tree; 14 came in November, December or January, and high-wind reports follow the same calendar.

Read these numbers as a floor. The “under tree” code covers only people recorded as under a tree; several deaths in both states of people in cars and homes struck by trees are filed as vehicle or home deaths. The wind figures are report rows, not unique storms, and not one of the 1,201 high-wind rows from 2016 to 2025 fell in July.

The practical rule: if a dead tree or limb can reach the house, driveway, sidewalk or a line, have it looked at in September or October. A tree risk assessment rates how likely it is to fail and what it would hit; if it also leans or has a crack, read leaning tree and split tree trunk.

Can a dying tree be saved, or should it come down?

A dead tree cannot be saved. Portland’s tree code puts it plainly: a tree is dead when not enough live tissue, green leaves, limbs, roots or branches remain to sustain life. Whether a dying tree can be saved depends on the cause, how much crown is gone, and whether the cause can be fixed.

How to save a dying tree

An arborist starts with the cause: roots, pests, disease, drought or an old injury. The ISA asks for mature trees to be inspected at least once a year for new leaf or bud formation, leaf size, twig growth and crown dieback. Meanwhile:

• Water in dry months. OSU Extension’s Deschutes County office advises soaking the ground at the dripline, where an established tree’s roots sit in the top 12 to 18 inches, about every three to four weeks in a dry spell.
• Mulch 2 to 4 inches deep out toward the dripline, kept off the trunk (ISA).
• Skip fertilizer on a drought-stressed tree; ODF warns that extra growth raises its water needs.
• Take out dead wood over targets, and report pockets of two or more dying mature redcedars to the forestry agencies, as their 2022 alert asks.

Removing a dead tree: permits and paperwork

Dead trees usually get the easiest permit, not an exemption. In Portland, removing a private tree 12 inches or more in diameter needs a permit, but dead, dying and dangerous trees qualify for a Type A permit with no public notice or appeal (PCC 11.40.050), and a replacement tree is still required. For a clear and present danger, Portland lets you remove first and file the Type A permit within 7 days with documentation.

Seattle charges no land-use fee to review a dead-tree removal; hazard-tree removals are reviewed at half the land-use hourly rate and need a Basic Tree Risk Assessment Form from a TRAQ-qualified arborist. Other cities are on Oregon tree removal permits and Washington tree removal permits. Either way, keep dated photos and the arborist’s written finding; how crews handle dead wood is on dead tree removal.