If my kumquat tree’s leaves are dropping, I’d consider a few possible causes to get to the bottom of it. Here’s how I’d approach it:
- Environmental Stress or Shock
- What I Think Might Be Happening: If I’ve recently moved my kumquat tree from indoors to outdoors or changed its location significantly, it could be stressed by the sudden change. This is especially true if the tree is exposed to intense sun or heat after being indoors.
- What I’d Do: I’d give it time to adjust. If the tree was in the sun too much, I’d move it to a more shaded area for a while before gradually increasing its exposure to full sun. I’d also make sure it’s not exposed to drafts or extreme temperatures.
- Watering Issues (Underwatering or Overwatering)
- What I Think Might Be Happening: If I’ve been overwatering or underwatering, the tree might drop leaves in response. Overwatering is more likely to cause root rot, which can stop the roots from absorbing water properly.
- What I’d Do: I’d check if the pot has good drainage. Before watering, I’d stick my finger into the soil about an inch deep—if it feels dry, it’s time to water. If it’s still moist, I’d hold off. If the soil is too heavy or retains too much water, I’d consider repotting with a well-draining citrus mix.
- Pests: Aphids, Spider Mites, and Scale Insects
- What I Think Might Be Happening: I’d check the tree for pests. Aphids, spider mites, or scale insects can weaken the tree by feeding on its sap, which could lead to leaf drop.
- What I’d Do: I’d inspect the leaves and stems carefully. If I spot any pests, I’d treat the tree with insecticidal soap, neem oil, or a mild water and dish soap solution. I’d also spray the tree with a strong stream of water for spider mites to help dislodge them. I recommend reading my other post about curling the leaves of Kumquat.
- Leaf Aging (Natural Leaf Drop)
- What I Think Might Be Happening: Sometimes the tree just sheds older leaves as part of its natural growth cycle. This is usually nothing to worry about, especially if the leaves are older and turning yellow.
- What I’d Do: If the dropped leaves are old or yellowed, I wouldn’t panic. I’d just continue caring for my kumquat as usual and keep an eye out for fresh new growth.
- Nutrient Deficiency
- What I Think Might Be Happening: If my tree isn’t getting the nutrients it needs, particularly nitrogen, it might drop leaves to conserve energy.
- What I’d Do: I’d give it a good feed with a balanced citrus fertilizer, making sure it has all the essential nutrients like magnesium, potassium, and iron. I’d be careful not to overfeed, though, as that can also cause problems.
- Temperature and Humidity
- What I Think Might Be Happening: If the tree has been exposed to fluctuating temperatures or dry air, that could be causing stress. Kumquats prefer consistent temperatures and higher humidity.
- What I’d Do: I’d make sure the tree is in a stable temperature environment, ideally between 50°F (10°C) and 75°F (24°C). If I’m growing it indoors, I’d consider increasing the humidity by misting the leaves occasionally or placing a shallow tray of water nearby.
Quick Summary of My Actions:
Here I listed what I check and do for a sad Kumquat with leaf drop problem:
- Check for pests: I’d closely examine the leaves and stems for any signs of aphids, mites, or scale.
- Water properly: I’d ensure the soil is moist but not soaked and that my pot has good drainage.
- Repot if necessary: If I think the soil is retaining too much moisture, I’d repot the tree in a well-draining citrus mix.
- Allow it to acclimate: If I moved the tree outside or changed its environment, I’d give it time to adjust.
- Feed it regularly: I’d fertilize the tree with a balanced citrus fertilizer to keep it healthy.
- Monitor the temperature and humidity: I’d try to maintain a consistent temperature and humidity level for the tree.
By considering these factors, I’d be able to figure out why the leaves are dropping and hopefully get my kumquat tree back on track! Let me know how it goes for you, too!
Elahe Rabiei
Hi, I’m Elaheh. My Academic major is plant protection, and houseplants are my expertise. As a houseplant lover, my house is full of indoor plants and it is my passion to take care of them. Hence, I’m here to share my knowledge and experience about growing healthy houseplants. I am also a plant protection advisor, so feel free to ask me any questions you may have.
inhouseplant2017@gmail.com