Zantedeschia Captain Cheerio Sudden Leaf Drop - Causes & Fixes

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Overwatering and Root Rot

Zantedeschia species are susceptible to Phytophthora rot when soil remains saturated for extended periods. Excess moisture deprives the rhizomes of oxygen, leading to rapid senescence and leaf drop.

Very Common

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How to confirm: Check if the base of the plant or the rhizome feels soft, mushy, or smells like decay.

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1 Immediately remove the plant from its current container and inspect the rhizomes for any mushy, dark, or foul-smelling rot.

2 Prune away all decayed root tissue using sterilized tools and repot the plant in a well-draining, fresh medium like Espoma Organic Potting Soil Mix to restore aeration.

Espoma Organic Potting Soil Mix

15.1 L

$22

In Stock

3 Switch to a more breathable substrate by incorporating Legigo Organic Leca Clay Pebbles to improve drainage and prevent future waterlogging.

Legigo 4LB Leca Clay Pebbles

Expanded Clay

$17

In Stock

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Temperature Shock

Calla Lilies are sensitive to sudden drops in ambient temperature. Cold drafts or temperatures below 50°F (10°C) can trigger a stress response resulting in the shedding of foliage.

Very Common

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How to confirm: Check if the plant has recently been moved near a drafty window or an air conditioning vent.

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1 Immediately move the plant to a stable, warm environment away from cold drafts, windows, or air conditioning vents to stabilize the temperature.

2 Monitor the soil moisture closely using a moisture meter to ensure the plant is not being overwatered while in its stressed, dormant-like state.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

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3 Once the plant stabilizes, you can apply a light feeding of liquid seaweed to help the plant recover from environmental stress.

FoxFarm Bush Doctor Kelp Me Kelp You Liquid Seaweed Fertilizer 1 Quart

0.9 L • 1 pcs

$32

In Stock

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Extreme Drought Stress

While they enjoy moisture, complete dehydration causes the plant to enter a survival mode where it sheds leaves to conserve water for the rhizome. This often occurs if the potting medium dries out entirely.

Common

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How to confirm: Inspect the soil depth; if it is bone dry and pulling away from the edges of the pot, the plant is dehydrated.

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1 Immediately rehydrate the soil by deeply watering the plant until water flows freely from the drainage holes.

2 Monitor the soil moisture levels closely to ensure the medium stays consistently moist but not waterlogged to prevent future drought stress.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

3 Apply a liquid seaweed fertilizer to help the plant recover from environmental stress and boost nutrient uptake.

FoxFarm Bush Doctor Kelp Me Kelp You Liquid Seaweed Fertilizer 1 Quart

0.9 L • 1 pcs

$32

In Stock

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Nutrient Deficiency (Nitrogen)

A lack of available nitrogen prevents the maintenance of chlorophyll in older leaves. As the plant struggles to support new growth, it may shed lower foliage to reallocate resources.

Common

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How to confirm: Look for overall yellowing (chlorosis) of the leaves starting from the bottom before they drop.

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1 Apply a nitrogen-rich liquid fertilizer to boost chlorophyll production and support new foliage growth.