Zantedeschia Captain Reno Brown Leaf Tips - Causes & Fixes

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Low Humidity

Calla Lilies like 'Captain Reno' are tropical perennials that thrive in high humidity. Dry air, often caused by indoor heating, causes the leaf margins and tips to desiccate and turn brown.

Very Common

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How to confirm: Check if the brown tips appear more prominent during winter months or when using a heater.

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1 Increase local humidity around the plant by using a fine mist spray bottle to hydrate the foliage regularly.

Flora Premium Plant Mister

Spray Bottles

$12

In Stock

2 Place a pebble tray filled with water beneath the pot to create a consistent microclimate of moisture around the leaves.

Bleuhome 6-Pack 6in Plant Saucers Black

Pot Saucers

$6

In Stock

3 Monitor soil moisture levels to ensure the plant remains hydrated, as dry soil can exacerbate the effects of low humidity.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

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Salt and Mineral Buildup

Accumulated salts from tap water or excessive fertilizer can burn the sensitive leaf edges of Zantedeschia. This prevents efficient water transport to the furthest reaches of the foliage.

Very Common

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How to confirm: Inspect the soil surface for a white, crusty residue and check if you are using hard water.

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1 Flush the soil thoroughly with distilled or rainwater to leach out accumulated mineral salts and prevent further tip burn.

2 Check the soil moisture levels regularly using a moisture meter to ensure you are not overwatering, which can exacerbate salt concentration.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

3 Repot the plant in fresh, high-quality potting soil to provide a clean environment free of existing mineral buildup.

Espoma Organic Potting Soil Mix

15.1 L

$22

In Stock

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Inconsistent Watering

While Calla Lilies prefer moist soil, allowing the rhizome to undergo extreme drying cycles followed by heavy saturation stresses the plant. This physiological stress often manifests as necrotic leaf tips.

Very Common

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How to confirm: Stick your finger two inches into the soil to see if it has been allowed to dry out completely between waterings.

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1 Monitor soil moisture levels closely using an analog meter to ensure the soil remains consistently moist but not waterlogged.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

2 Establish a regular watering schedule to prevent the rhizome from experiencing extreme drying and saturation cycles.

Chapin 48000 0.5G Watering Can

2.3 L • Recycled Plastic

$12

In Stock

3 Trim away the dead, brown leaf tips with clean shears to improve the plant's appearance and prevent further stress.

Fiskars 5/8" Bypass Pruning Shears

Cutting Tools

$13

In Stock

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Fungal Leaf Spot (Phytophthora)

Excessive moisture on the foliage combined with poor air circulation can trigger fungal pathogens. This often starts as small brown spots that can expand to the leaf tips.

Common

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How to confirm: Look for dark, water-soaked lesions or fuzzy growth near the brown areas of the leaves.

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1 Remove and discard all infected leaves to prevent the spread of the fungal pathogen.

2 Apply a fungicide to the affected areas and ensure you avoid wetting the foliage during watering to reduce moisture buildup.