Haworthia maughanii Yellow Leaves - Causes & Fixes

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Overwatering and Root Rot

Haworthia maughanii are succulents that require a drying period between waterings. Excessive moisture causes the roots to suffocate, leading to chlorosis (yellowing) as the plant's vascular system fails.

Very Common

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How to confirm: Gently tug on the base of the leaves; if they feel loose or the stem is mushy, it is likely root rot.

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1 Immediately remove the plant from its current pot and inspect the roots for any mushy, black, or foul-smelling decay.

2 Prune away all dead or rotting roots using sterilized tools and repot the Haworthia in a well-draining, gritty substrate like a mix of perlite and pumice to prevent future suffocation.

3 Transition to a more breathable container and use a moisture meter to ensure the soil is completely dry before the next watering session.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

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Excessive Light Exposure (Sunscald)

While these plants enjoy bright light, direct midday sun can bleach the chlorophyll in the fleshy leaves. This physiological stress manifests as yellow or white patches on the leaf surface.

Very Common

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How to confirm: Check if the yellowing is localized to areas directly exposed to a window or intense light source.

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1 Immediately move the Haworthia to a location with bright, indirect light to prevent further chlorophyll bleaching and sunscald.

2 Monitor the soil moisture levels closely, as sun-stressed plants can dehydrate rapidly; use a moisture meter to ensure the substrate remains slightly damp but not waterlogged.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

3 If the plant shows signs of recovery, you can provide supplemental light using a full-spectrum LED to maintain health without the heat of direct sun.

SANSI 10W Full Spectrum Grow Light

Grow Lights

$9

In Stock

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Nutrient Deficiency (Nitrogen)

A lack of available nitrogen in the growing medium prevents the synthesis of chlorophyll. In Haworthia, this typically results in an overall pale or yellowish tint to the older leaves.

Common

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How to confirm: Observe if the yellowing is progressing from the oldest, bottom leaves toward the new growth.

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1 Apply a nitrogen-rich liquid fertilizer to the soil to restore chlorophyll production and green up the leaves.

FoxFarm Grow Big Liquid Plant Food 1 Quart

0.9 L • 1 pcs

$30

In Stock

2 Check the soil moisture levels with a meter to ensure the nitrogen is being effectively absorbed and not being washed away by overwatering.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

3 Refresh the growing medium with a new organic potting mix to replenish depleted nutrients.

Espoma Organic Potting Soil Mix

15.1 L

$22

In Stock

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Temperature Stress

Sudden drops in temperature or exposure to drafts can cause metabolic disruption. For this species, temperatures below 50°F (10°C) can trigger a yellowing response as the plant enters a stressed state.

Common

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How to confirm: Verify if the plant is located near an air conditioning vent or a drafty window during colder months.

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1 Relocate the plant to a stable, draft-free environment and ensure temperatures remain consistently above 50°F (10°C).

2 Monitor the soil moisture levels closely, as temperature fluctuations can alter evaporation rates and lead to secondary issues like root rot.