Salix integra Yellow Leaves - Causes & Fixes

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Overwatering and Root Suffocation

Salix integra thrives in moist soil, but prolonged waterlogging leads to anaerobic conditions that cause root rot. This prevents the tree from transporting nutrients, resulting in chlorosis (yellowing) of the leaves.

Very Common

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How to confirm: Check if the substrate is saturated or smells sour, and inspect roots for dark, slimy patches.

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1 Immediately stop watering and allow the soil to dry out significantly 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 by mixing existing soil with perlite or horticultural grit to improve aeration.

3 Inspect the roots for any mushy, dark, or foul-smelling rot and prune away damaged sections using clean shears.

Gonicc 8" Titanium Bypass Pruners GPPS-1003

Cutting Tools

$15

In Stock

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Nitrogen Deficiency

A lack of available nitrogen prevents the formation of chlorophyll in the willow's foliage. This typically manifests as a uniform yellowing starting from the older, lower leaves moving upward.

Very Common

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How to confirm: Observe if the yellowing is consistent across the entire leaf blade and check if new growth appears pale.

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1 Apply a nitrogen-rich liquid fertilizer to the soil to quickly 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 Supplement the soil with an organic nitrogen source like blood meal to provide a slow-release nutrient boost for long-term health.

Back to the Roots Blood Meal & Gypsum (4 Pack)

Organic Fertilizer

$40

Out of Stock

3 Monitor the soil moisture levels using a moisture meter to ensure the nitrogen is being effectively absorbed by the roots without causing waterlogging.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

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Iron Chlorosis

In high-pH (alkaline) soils, Salix species struggle to uptake iron. This causes interveinal chlorosis, where the leaf tissue turns yellow while the veins remain distinctly green.

Common

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How to confirm: Examine the leaves for a pattern of bright green veins against a yellowing background.

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

FoxFarm Happy Frog Acid Loving Plant Fertilizer

Organic

$22

In Stock

2 Apply a chelated iron supplement or a specialized fertilizer to provide immediate iron uptake.

FoxFarm Bush Doctor Cal Mag Liquid Supplement 1 Pint

0.5 L • 1 pcs • Organic

$22

In Stock

3 Monitor soil moisture levels using a moisture meter to ensure the plant is not experiencing water stress, which can exacerbate chlorosis symptoms.

GROWIT Analog Soil Moisture Meter

Water Meters

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Water Stress (Drought)

Despite being water-loving, extreme drought stress can cause the willow to lose leaf turgidity and turn yellow as a defense mechanism to reduce transpiration.

Common

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How to confirm: Check the soil moisture deep below the surface and look for wilting alongside the yellowing.

build How to fix it

shopping_cart Recommended Products

1 Immediately check the soil moisture levels at the root zone to confirm the extent of the drought stress.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

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2 Apply a deep, thorough watering to the base of the plant, ensuring the soil is completely saturated to restore turgidity.