Pocket Botanist
Check these first
- Check if the pot has drainage holes.
- Feel the soil depth to see if it is soggy.
- Inspect the roots for brown or mushy sections.
Likely causes
Poor drainage
Most likelyHow to tell: The soil stays wet for more than a few days after watering. You might notice a sour smell coming from the pot.
What to do: Repot the plant into a fast draining mix specifically for proteas or native plants. Ensure the pot has large drainage holes at the bottom. Never let the pot sit in a saucer of standing water.
Overwatering
Most likelyHow to tell: The leaves turn soft and mushy rather than crisp. The stems may feel squishy near the soil line.
What to do: Wait until the top 3 inches of soil are completely dry before adding more water. Stick to a schedule of every 10 to 14 days rather than frequent light watering. Always check the soil moisture with your finger first.
Find out what's wrong with your king protea
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 roots are black and slimy, the plant is likely beyond saving. Act quickly if you see any wilting while the soil is still wet.
Stopping it coming back
Use a gritty, low nutrient potting mix and always allow the soil to dry out significantly between waterings.
King protea: root rot? Check yours with a photo
Every plant is a little different. Take a photo of your king protea 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.
Scan with your phone's camera to get the app
Or go to pocketbotanist.app/get on your phone
Get the app · Or check it from a photo now, free
Questions people ask
- Can I save a plant with root rot?
- If you catch it early, you can trim away the dead roots and repot in fresh, dry soil. If the majority of the root system is black, the plant will likely not recover.
- How often should I water my King protea?
- Water every 7 to 14 days depending on your local heat and humidity. Always ensure the soil is dry to the touch before adding more water.
More problems with King protea
- Why is my King protea not producing any flowers?
- Why are my King Protea's leaves turning yellow?
- Why is my King Protea growing so leggy?
- Why are the tips of my King protea leaves turning brown?
- Why is my King Protea drooping?
- Why is my King Protea dropping its leaves?
- What are these spots on my King Protea leaves?
- Are there bugs on my King Protea?
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.