Chrysanthemum Anderson Creme Yellow Leaves - Causes & Fixes

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Nitrogen Deficiency

Chrysanthemums are heavy feeders; a lack of nitrogen prevents the production of chlorophyll, causing older leaves to turn uniformly yellow and eventually drop.

Very Common

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How to confirm: Check if the yellowing started on the oldest, bottom leaves first and if the new growth looks pale.

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shopping_cart Recommended Products

1 Apply a nitrogen-rich liquid fertilizer to boost chlorophyll production and green up the foliage.

FoxFarm Grow Big Liquid Plant Food 1 Quart

0.9 L • 1 pcs

$30

In Stock

2 Incorporate an organic soil amendment like worm castings to provide a slow-release source of nitrogen.

Back to the Roots Organic Worm Castings 5lb

Worm Castings

$17

In Stock

3 Monitor soil moisture levels with a meter to ensure nitrogen is being effectively transported to the roots.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

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Overwatering and Root Suffocation

Excessive moisture in the substrate leads to anaerobic conditions, causing root rot which prevents the plant from transporting nutrients upward.

Very Common

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How to confirm: Stick your finger deep into the soil; if it is soggy or smells sour/musty, you are overwatering.

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shopping_cart Recommended Products

1 Immediately stop watering and allow the soil to dry out completely to restore oxygen to the root zone.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

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2 Repot the plant in a well-draining medium enriched with perlite to improve aeration and prevent future waterlogging.

3 Trim away any mushy, black, or foul-smelling roots using sterilized shears to prevent the spread of rot.

Gonicc 8" Titanium Bypass Pruners GPPS-1003

Cutting Tools

$15

In Stock

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Iron Chlorosis

High soil pH (alkalinity) prevents Chrysanthemums from absorbing iron, resulting in interveinal chlorosis where leaves turn yellow but veins remain green.

Common

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How to confirm: Observe if the yellowing is specifically limited to the areas between the veins on young leaves.

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shopping_cart Recommended Products

1 Lower the soil pH by applying an acidifying amendment to make iron more bioavailable to the plant.

FoxFarm Happy Frog Acid Loving Plant Fertilizer

Organic

$22

In Stock

2 Supplement with a chelated iron or a specialized acid-loving fertilizer to address the immediate deficiency.

FoxFarm Bush Doctor Cal Mag Liquid Supplement 1 Pint

0.5 L • 1 pcs • Organic

$22

In Stock

3 Monitor soil acidity levels regularly using a pH tester to ensure the environment remains in the ideal range for Chrysanthemums.

YAMRON 4-in-1 Digital Soil Tester

Water Meters

$33

In Stock

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Spider Mite Infestation

Tiny spider mites feed on the sap of Chrysanthemum leaves, causing a mottled, yellowish appearance and often leaving fine silk webbing on the undersides.

Common

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How to confirm: Hold a white piece of paper under a leaf and tap it to see if tiny moving dots fall onto the paper.

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shopping_cart Recommended Products

1 Apply an organic insecticide spray to the plant, ensuring you coat the undersides of the leaves to eliminate mites and their eggs.