Zantedeschia Captain Kelso Drooping Leaves - Causes & Fixes

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Inconsistent Watering (Drought Stress)

Calla Lilies require consistently moist soil to maintain turgor pressure in their large, fleshy leaves. If the substrate dries out completely, the plant will rapidly lose moisture through transpiration, causing the leaves to wilt and droop.

Very Common

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How to confirm: Insert your finger two inches into the soil; if it feels bone-dry, the plant is likely dehydrated.

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1 Immediately check the soil moisture level using a probe to determine the depth of the drought stress.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

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2 Thoroughly water the plant until water drains from the bottom, ensuring the root ball is fully saturated to restore turgor pressure.

Chapin 48000 0.5G Watering Can

2.3 L • Recycled Plastic

$12

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3 To prevent future drought stress, consider using a self-watering system or a moisture-retaining substrate amendment like perlite to stabilize hydration.

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Root Rot (Overwatering)

Excessive moisture in the pot deprives the rhizomes of oxygen, leading to fungal pathogens like Pythium. As roots decay, they can no longer transport water to the leaves, resulting in a paradoxical drooping appearance despite wet soil.

Very Common

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How to confirm: Gently lift the plant from its pot to check if the rhizomes are mushy or smell of decay.

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1 Immediately remove the plant from the pot and inspect the rhizomes and roots for mushy, dark, or foul-smelling decay.

2 Prune away all dead or rotting roots using sterilized shears and repot the plant in a fresh, well-draining medium like a mix containing perlite to improve aeration.

3 Switch to a more breathable container and use a moisture meter to ensure the soil is allowed to dry out significantly before the next watering.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

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Temperature Shock or Cold Stress

Zantedeschia cultivars are sensitive to sudden drops in temperature. Exposure to drafts or temperatures below 50°F (10°C) can cause the cellular structure of the leaves to weaken, leading to loss of rigidity.

Common

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How to confirm: Check if the plant is positioned near a window, air conditioning vent, or drafty door.

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1 Move the plant to a stable, draft-free environment with temperatures consistently above 60°F (15°C) to prevent further cellular damage.

2 Monitor soil moisture closely, as cold stress can slow evaporation; use a moisture meter to ensure the plant is not sitting in overly wet, cold soil.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

3 Apply a microbial-based fertilizer to help stimulate root zone recovery and strengthen the plant's resilience against environmental stress.

FoxFarm Bush Doctor Boomerang Liquid Plant Fertilizer 1 Pint

0.5 L • 1 pcs

$20

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Nutrient Deficiency (Nitrogen)

A lack of available nitrogen prevents the production of chlorophyll and structural proteins necessary for leaf uprightness. This often manifests as drooping accompanied by a pale, yellowish tint to the leaves.

Common

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How to confirm: Observe if the older leaves are turning pale yellow in addition to the drooping symptom.

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1 Apply a nitrogen-rich liquid fertilizer to boost chlorophyll production and restore leaf structure.