Skip to content

Queensland kauri · Agathis robusta

Why are the tips of my Queensland kauri turning brown?

Brown tips on a Queensland kauri are often a sign of low humidity or inconsistent watering. Start by checking if your home air is too dry for this tropical tree.

Not sure it's this? Check a photo of your plant for free

Check these first

  1. Check the humidity levels in the room.
  2. Feel the soil to see if it is completely dry.
  3. Inspect the leaves for signs of dust buildup.

Likely causes

  1. Low humidity

    Most likely

    How to tell: The tips turn crisp and brown while the rest of the leaf remains green. This happens most often during winter when heaters are running.

    What to do: Place a humidifier nearby or group your plants together to create a microclimate. You can also mist the foliage occasionally, though this is less effective than a humidifier.

  2. Underwatering

    Possible

    How to tell: The soil is bone dry and pulling away from the sides of the pot. The brown tips feel brittle to the touch.

    What to do: Give the plant a thorough soak until water runs out of the bottom. Maintain a consistent schedule of watering every 7 to 14 days.

Brown tips on other plants

Find out what's wrong with your queensland kauri

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.

Download on the App StoreGet it on Google Play

When to worry

Minor browning on older leaves is normal as the plant ages. If the browning is spreading rapidly across new growth, you need to adjust your care.

Stopping it coming back

Keep the plant away from direct drafts from air conditioning or heating vents.

Queensland kauri: brown tips? Check yours with a photo

Every plant is a little different. Take a photo of your queensland kauri 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.

Download on the App StoreGet it on Google Play

Get the app · Or check it from a photo now, free

Questions people ask

Should I trim the brown tips off?
You can trim the brown parts with clean scissors for aesthetic reasons. Just be careful not to cut into the healthy green tissue.
Does tap water cause brown tips?
Sometimes high mineral content in tap water can cause salt buildup. If you suspect this, try using filtered or rainwater.

Guides to these causes

More problems with Queensland kauri

Back to the Queensland kauri 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.