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What Causes Alii Ficus Tree Leaves to Curl? A Troubleshooting Guide

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Ficus Alii is a beautiful perennial ornamental fig and can be a terrific addition to your houseplant collection. This plant is known for its deep green and bushy foliage. The long, narrow, and willowy leaves give it a classy look. The glossy gaze on the greenery makes it more eye-catching. With its growth, the Ficus Alii may divulge a very thick trunk with pronounced beautiful variegation, giving it a palm-like appearance.

This striking plant is called Banana Leaf Fig due to its lean verdures. Other names of the plant are Ficus Maclellandii and Ficus Binnendiijkii. The plant makes a bold statement in any bright room. The Ficus Alii is originally from Malaysia and India.

The Alii Ficus is beloved for its graceful, tropical foliage that can reach up to 10 inches long. However, a common issue that plant parents face is dealing with curled leaves on their Alii Ficus tree. Leaf curl can indicate underlying problems that need to be addressed. In this comprehensive guide, we’ll explore the various causes of leaf curl in Alii Ficus trees and how to get your plant back to health.

Overwatering

Excessive watering is one of the most common culprits behind curled leaves on an Alii Ficus. These tropical trees prefer soil that drains well and does not remain soggy. When roots sit in wet soil for too long, they become starved of oxygen. This disrupts the tree’s ability to take up water and nutrients efficiently.

To remedy overwatering, allow the top few inches of soil to dry out between waterings. Check by inserting your finger in the soil to gauge moisture. Repot into fresh, well-draining soil if needed. And ensure the pot has drainage holes to prevent waterlogging.

Underwatering

While overwatering causes leaves to curl downwards, underwatering leads to the opposite problem – leaves curling upwards or crisping. When the Alii Ficus lacks sufficient moisture it responds by rolling its leaves to prevent transpiration and conserve any water it can.

Check soil regularly with your finger – if dry to the touch give your Alii Ficus a deep drink. But be careful not to then overcompensate with excessive water. Aim for a consistent watering routine based on your plant’s needs.

Low Humidity

Native to tropical locales the Alii Ficus thrives in high humidity. When humidity is low, such as in many homes during winter with central heating the leaves will curl up or crisp around the edges. This is the plant’s effort to retain moisture in dry air.

Consider using a humidifier, pebble tray, or regular misting to increase humidity for your Alii Ficus. Keep it away from heating/cooling vents that can blast dry air. Group plants together to create a little greenhouse effect.

Temperature Fluctuations

If your Alii Ficus is exposed to drafts or sudden temperature drops, such as next to a drafty window in winter, it can respond with curled leaves. These plants prefer consistent temperatures between 60-75°F.

Place your Alii Ficus in a stable environment away from cold/hot spots. Avoid moving it to different rooms with varying temperatures. Keep it away from air vents and windows that may expose it to temperature swings.

Pest Infestations

Common houseplant pests like spider mites, aphids, mealybugs, and scale can infest an Alii Ficus and cause leaves to curl. These pests damage foliage and suck nutrients from the leaves, leading to abnormalities in growth.

Check under leaves for webbing, sticky residue, and bugs. Wipe leaves down with insecticidal soap or neem oil. Isolate affected plants and discard heavily infested parts to control the spread.

Nutrient Deficiencies

When vital nutrients like nitrogen, phosphorus, or potassium are lacking, Alii Ficus leaves can become misshapen and curled. Nutrient issues show up as yellowed, spotted, or damaged foliage.

Use a balanced liquid fertilizer at half strength every 2-4 weeks in the growing season. Ensure the potting mix is rich in organic matter. Repotting into fresh soil also replenishes nutrients.

Root Bound

If the Alii Ficus remains in the same pot for too long, the roots will eventually become bound and crowded. This restricts air flow and inhibits efficient uptake of moisture and nutrients. Leaves will curl and plant growth will slow.

Every 1-2 years, repot your Alii Ficus into a larger container. Look for circling roots at the bottom of the pot, a sign of being root bound. Gently loosen and trim any problem roots before replanting.

By identifying and quickly addressing the underlying cause, you can restore your Alii Ficus tree to excellent health. Pay close attention to soil moisture, humidity, pests, nutrients, and other factors influencing leaf curl. With the right adjustments to its care, your Alii Ficus will unfurl lush, beautiful leaves once again!

what causes alii ficus tree leaves to curl

Soil requirements for Ficus Alii

The Ficus Alii isn’t too picky about the potting mix; however, ensuring a well-draining, nutrient-rich, aerated soil will do wonders. The soil shall not get waterlogged, and the container shall have adequate drainage holes. This plant is happy in the potting soil that maintains a PH between 6.0 to 6.5.

Our optimally formulated soil mix is ideal for Ficus plants and will provide all the necessary soil features to boost your Ficus Alii health.

The Banana Fig needs regular feeding for its healthy growth; therefore, it is recommended to fertilize the plant once a month. Use our balanced all-purpose liquid fertilizer in the growing season, summer and spring. This plant doesn’t like being fertilized in the colder winter and fall months. Ficus Alii is sensitive to boron; consequently, avoid a fertilizer with chemical boron.

Repotting Amstel King plant

The Ficus Alii likes to be root bound and needs repotting every after 2 to 3 years. When the roots start to bulge out from the pot, it’s the ideal time to repot your Ficus Alii and the perfect season is spring.

  • Before repotting, take a next-sized container having drainage holes in it.
  • Hydrate the plant 24 hours before transplant to reduce relocation shock.
  • Take the plant out of the pot and inspect the soil and roots for diseases and pests.
  • In case of pests and root rot, remove the affected areas before moving the plant to a new container.

After transplanting the plant into a new planter, water it thoroughly and place it in a bright, ventilated space.

The propagation of Ficus Alii is possible at home, but it can be a bit difficult for beginners. However, the plant can be propagated through stem cuttings and air layering. Both methods are equally successful.

  • Select a healthy plant branch with a couple of leaves.
  • Cut that branch using a sharp knife or scissors. The branch should be 4 to 6 inches long.
  • Dip the cutting end in a rooting hormone and plant it in a container with fresh soil.
  • Keep it in a bright location with indirect sunlight and water it thoroughly. The new roots will emerge in a few weeks, and the plant’s growth will start.

Alternatively, the branch can be kept in water for root development. Keep the water jar in a humid place, such as the kitchen, and wait for the roots to come out. In 2 to 4 weeks, the cutting will grow roots and plant the cutting in a pot with preferred potting soil. Water the plant regularly and put it in a bright space for fast growth.

Ficus Alii plant care tips

FAQ

How do you treat leaf curl on a ficus tree?

Nutrient deficiencies make leaves curl as if they’re holding back their full potential. A lack of nitrogen, potassium, or other essential nutrients can trigger this response. To correct imbalances, use a balanced fertilizer, but avoid over-fertilization, which can cause just as much harm.

How often should I water Ficus Alii?

Ficus Alii prefer soil that is consistently and evenly moist. You only want to allow the top 1” – 2” of the soil to dry between waterings, but avoid overwatering as they are still susceptible to root rot despite their high moisture requirements. These plants do particularly well in the self watering containers.

What does an underwatered ficus tree look like?

Underwatering or overwatering both can cause a ficus tree to lose leaves. An improperly watered ficus tree may have yellowing leaves and the ficus tree leaves may curl. Water the soil only when the very top of the soil is dry, but also make sure that your ficus tree’s pot has good drainage.

Why are the leaves on my tree curling up?

Plant leaves curl in response to various environmental stressors. When certain pests, such as psyllids, mealybugs, and thrips, feed on a leaf it can cause leaf curling and deformation. When plants are too hot or too dry, they can also curl along the entire leaf margin.

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