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Princess Flower · Tibouchina

Why is my Tibouchina dropping leaves?

It is less common for this plant to drop leaves, and it usually happens due to sudden environmental changes or improper watering. Check for recent moves or temperature swings first.

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Check these first

  1. Check if the plant was recently moved to a new spot.
  2. Inspect the soil for signs of waterlogging.
  3. Look for cold drafts near the plant location.

Likely causes

  1. Temperature Shock

    Possible

    How to tell: Leaves fall off suddenly after a cold draft or a move to a new location. The remaining leaves may look healthy but drop at the slightest touch.

    What to do: Keep the plant away from air conditioning vents or drafty windows. Maintain a stable temperature between 65 and 80 degrees Fahrenheit.

  2. Overwatering

    Possible

    How to tell: The lower leaves turn yellow before falling off. The soil stays soggy and the stems may feel soft near the base.

    What to do: Let the soil dry out completely until the top 2 inches are dry. Ensure your pot has excellent drainage and never let the plant sit in a saucer of water.

Leaf drop in other plants

Find out what's wrong with your princess flower

The list above covers the usual causes. Pocket Botanist looks at a photo of your actual plant and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.

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When to worry

If the plant is losing more than a few leaves at a time, it is a sign of stress. It is normal for an old leaf to yellow and drop occasionally.

Stopping it coming back

Keep the plant in a stable environment and avoid overwatering by checking the soil moisture before adding more.

Princess Flower: leaf drop? Check yours with a photo

Every plant is a little different. Take a photo of your princess flower and Pocket Botanist tells you which cause is most likely, how serious it is, and what to try first. A few checks a day are free. Save the plant and you get care reminders timed for it.

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Questions people ask

Is leaf drop normal after bringing it inside?
Yes, the plant often drops a few leaves when adjusting to lower light levels indoors. It should stabilize within a few weeks.
Does my Tibouchina need fertilizer to stop leaf drop?
Not necessarily. Leaf drop is usually environmental, so focus on light and water first before adding fertilizer.

More problems with Princess Flower

Back to the Princess Flower guide

This article was generated with AI on from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.