Calathea stromata Drooping Leaves - Causes & Fixes

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Underwatering and Low Humidity

Calathea stromata are tropical plants that require consistently moist soil and high ambient humidity; dry air or bone-dry substrate causes the leaf cells to lose turgor pressure, leading to drooping.

Very Common

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How to confirm: Check if the soil feels dry several inches below the surface and observe if the leaf edges are also crisping/turning brown.

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1 Immediately check the soil moisture level and water the plant thoroughly until water drains from the bottom to rehydrate the root zone.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

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2 Increase ambient humidity around the plant by using a pebble tray or a fine misting spray bottle to prevent further leaf desiccation.

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3 Ensure the plant is in a consistent environment and consider using a moisture meter to maintain the steady, moist substrate this species requires.

GROWIT Analog Soil Moisture Meter

Water Meters

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Root Rot (Overwatering)

Excessive water retention in the substrate deprives roots of oxygen, causing them to decay and lose the ability to transport water to the foliage, which manifests as wilting despite wet soil.

Very Common

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How to confirm: Gently lift the plant from its pot to check if the roots are dark, slimy, or have a foul odor.

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1 Immediately remove the plant from its current pot and inspect the roots; discard any mushy, black, or foul-smelling roots using sterilized shears.

2 Repot the plant in a fresh, well-draining substrate and a container with adequate drainage to prevent future water pooling.

3 Use a moisture meter to monitor the soil regularly, ensuring you only water when the top inch of soil is dry to avoid repeat overwatering.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

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Temperature Shock or Drafts

As a species native to tropical environments, sudden exposure to cold drafts from air conditioners or windows can cause the plant's metabolic processes to slow and leaves to sag.

Common

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How to confirm: Check if the plant is positioned directly in the path of an HVAC vent or near a drafty window.

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1 Move your Calathea to a stable, warm location away from air conditioning vents, drafty windows, or heating elements to stabilize its temperature.

2 Increase local humidity around the plant to mimic its tropical habitat, which helps reduce the stress caused by temperature fluctuations.

Flora Premium Plant Mister

Spray Bottles

$12

In Stock

3 Monitor the soil moisture closely during this period of stress to ensure the plant is not also suffering from root issues, using a moisture meter for accuracy.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

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