Skip to content
ComingThe Ptolemy client portal: your map, reports, schedule and spending in one place.Portal coming:See what’s insideClient sign-in
Ptolemy(239) 467-0142Request the free master planFree master plan

Palm disorder

Iron Deficiency

Yellow new fronds over green old ones. In palms it is almost never a lack of iron in the soil. It is a root problem: planted too deep, poor drainage, wet soil starving the roots of air. Fix the cause and the yellow can turn green again.

Newest fronds firstYellow new growth

Palms most affected: Foxtail palm, Lady palm, Queen palm, Palms in containers

Report a concernRequest an assessment
Foxtail palm fronds turned yellow. Foxtails are among the palms most prone to iron deficiency.
Foxtail palm fronds turned yellow. Foxtails are among the palms most prone to iron deficiency.
Affects
Foxtail palm, Lady palm, Queen palm, Palms in containers
When it shows
Year-round. Worse on wet, poorly drained sites.
What we do first
Check planting depth and drainage before any iron goes down.
Report a concern

What you see

Signs in the field

  • Yellow new fronds while the older fronds stay green
  • Yellow between the veins or across the whole leaflet
  • On queen palms, yellow new leaves dotted with small green spots, 2 to 4 mm (about 0.1 to 0.15 inch) across
  • Chronic cases: the whole canopy yellowing from the top down
  • Severe cases: dead new leaflet tips and stunted growth
  • Often clustered near pavement, curbs and low, wet spots
Often confused with
Nitrogen deficiencyManganese deficiencyTransplant shock

A root problem, not a soil shortage

Iron deficiency in palms almost always comes from roots that cannot breathe or work: deep planting, poor drainage, root rot, or other elements crowding out iron uptake. High soil pH causes iron trouble in many broadleaf trees, but usually not in palms.

Planted too deep

The most common cause of chronic iron deficiency in landscape palms is a palm set deeper than it grew. That is why planting depth is checked on every new install we inspect.

It can recover

Unlike most deficiencies, yellow iron-deficient leaves can regain their green once the cause is corrected.

What we do

How Ptolemy handles it

Field condition first, then the recommendation. Treatment, removal and diagnosis calls are made by an ISA Certified Arborist, and the serious ones are confirmed in a lab.

  • Look at the root zone first: depth, drainage and compaction.
  • Report deep-planted palms for resetting. On a new install, that is the installer’s to fix.
  • An iron chelate drench or foliar spray for short-term color, at label rates our certified arborist sets. Chelates can injure palms at high rates and stain hardscape.
  • Follow the palm over the next visits to confirm the cause is fixed and not only masked.

Next step

Seeing iron deficiency on your property?

ReadOur written protocolsEvery serious threat has its steps written down before it is needed.ReportReport a concernSend a photo and where it is. A photo is a reason to look, not a diagnosis.RequestThe free master planWe map every palm and tree and write one 10-year plan, with an estimated budget each year.
RelatedThe Palm Health ProgramSoil and irrigationNew planting assessment

Or call (239) 467-0142. The serious calls are confirmed in a lab before anyone acts.

FAQ

Questions about iron deficiency

Should we just add iron?

Iron alone treats the symptom. In palms the cause is almost always the roots: depth, drainage or compaction. We fix that first.

Will the yellow fronds green up?

Often, yes. Iron deficiency is one of the few where yellow tissue can recover once the cause is corrected.

Why foxtail palms?

Foxtail and lady palms are especially prone. On our sites we see it most where roots sit wet or deep.

Built on

Our own field records, our written specs, and these public references:

  • UF/IFAS EDIS EP265, Iron Deficiency in Palms

Keep reading

More palm disorders

Serious
Palm disorderManganese Deficiency (Frizzle Top)

New fronds come out yellow, streaked and frizzled, curled tight around the stem.

Signs and what we do
Manageable
Palm disorderNitrogen Deficiency

An evenly pale, light-green canopy with no spots and no dead tips, starting on the oldest fronds.

Signs and what we do
Serious
Palm disorderCold Damage

Chilling, frost and hard freezes burn fronds and can kill the bud.

Signs and what we do
Manageable
Palm disorderPotassium Deficiency

The most common nutrient problem in Southwest Florida palms, and the one with the highest stakes.

Signs and what we do

All palm disorders