Pocket Botanist
Check these first
- Stick your finger into the soil to check for sogginess.
- Verify that the pot has holes for water to escape.
- Smell the soil for a sour or rotten odor.
Likely causes
Overwatering
PossibleHow to tell: The plant will look wilted even when the soil is wet, and the stems may feel mushy near the base. The roots will turn dark and slimy instead of firm and white.
What to do: Stop watering immediately and let the top 2 inches of soil dry out. If the damage is severe, you may need to repot the plant into fresh, well draining soil.
Poor Drainage
PossibleHow to tell: Water pools on the surface of the soil for a long time after watering. The plant will show stunted growth and yellowing leaves.
What to do: Ensure your pot has drainage holes at the bottom. If the soil is too dense, mix in some perlite or sand to help water move through more easily.
Find out what's wrong with your spiny amaranth
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.
Scan with your phone's camera to get the app
Or go to pocketbotanist.app/get on your phone
When to worry
If the base of the stem has turned black or mushy, the plant is likely too far gone to save. Mild wilting is often reversible.
Stopping it coming back
Only water when the top inch of soil feels dry and never let the pot sit in a saucer of standing water.
Spiny amaranth: root rot? Check yours with a photo
Every plant is a little different. Take a photo of your spiny amaranth 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 mushy roots and repot the plant. If the rot has reached the main stem, it is usually too late.
- How often should I check the soil?
- Check it every 3 days to get a feel for how fast your plant drinks. This helps you avoid the cycle of overwatering.
More problems with spiny amaranth
- Why are there bugs on my spiny amaranth?
- Why is my spiny amaranth drooping?
- Why is my spiny amaranth growing so tall and thin?
- Why are my spiny amaranth leaves turning yellow?
- Why are my spiny amaranth's leaf tips turning brown?
- Why is my spiny amaranth losing its leaves?
- Why are there spots on my spiny amaranth leaves?
- Why are my spiny amaranth leaves curling?
Back to the spiny amaranth 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.