Common Arrowhead Plant Problems

Arrowhead Plant Is Dying

Arrowhead Plants are easy to grow but require specific conditions to thrive. Place an Arrowhead Plant in bright, indirect sunlight, and maintain comfortable room temperature and average to above average humidity. Water Arrowhead Plants when the top few inches of the soil are dry and fertilize the plant monthly during the growing season using balanced plant food. Straying from these care requirements can cause the plant to wither or decline and even die.

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Most issues for Arrowhead Plant are related to improper watering and inadequate sunlight. Monitor the soil to determine the dampness and only water when necessary. Inspect the foliage for sunburn or faded, yellow leaves, indicating insufficient light. Arrowhead Plants grown in low humidity will turn brown along the edges of the leaves. Once you identify the cause of the problem, take steps to fix the issue so the plant can recover.

Arrowhead Plant Leaves Turning Yellow

Yellow leaves are a sign that an Arrowhead Plant is struggling. Yellow leaf tips indicate the plant is too wet and overwatered. An entire leaf turning yellow and then brown can indicate the plant is too dry and not getting enough water. Faded or yellow leaves can also be a sign of not enough sunlight. Address these issues by only watering the Arrowhead Plant when the top few inches of the soil are dry and ensuring the plant receives plenty of bright indirect sunlight. Rotate the plant each time you water it to ensure each side gets even sunlight.

Arrowhead Plant Pests

Arrowhead Plant is not resistant to pests but is also not a common target. Regular offenders like spider mites, fungus gnats, mealybugs, and scale can all be trouble for Arrowhead Plants. Infestations look different depending on the pest. Spider mites may leave delicate webs between stems and leaves. Fungus gnats are often seen flying around the plant, but constantly damp soil is also a giveaway. 

The presence of mealybugs can be confirmed by white, fluffy egg masses or honeydew. Arrowhead Plants infested with scale will have yellow, drooping foliage, and the pests will appear as small, brown lumps on the stems and undersides of leaves.

Arrowhead Plant Diseases

Arrowhead Plants are susceptible to root rot, powdery mildew, and fungal leaf spots. Root rot is caused by giving the plant too much water. The roots will deteriorate or rot, and the plant will slowly die. Black or brown mushy stems near the soil line are signs of root rot. 

Leaves with white sheen have powdery mildew, while fungal leaf spots look like tan or brown spots on the foliage. In both instances, remove infected leaves. Ensure the plant receives bright indirect sunlight and only water when necessary.

Arrowhead Plant Not Blooming

Arrowhead Plants grown in their native habitats bloom, but houseplants seldom flower. This plant is grown for its foliage, so there is no need for concern when an Arrowhead Plant does not bloom indoors.

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Author Alison Cotsonas - Published 06-20-2023