Pocket Botanist
Check these first
- Observe how many hours of direct sun the plant gets.
- Check if the new growth is thinner than the base.
- Rotate the pot to see if it stops leaning.
Likely causes
Insufficient light
Most likelyHow to tell: The new growth is pale and much narrower than the older, established parts of the stem. The plant is leaning heavily toward the nearest window.
What to do: Move the cactus to a spot that gets at least 6 to 8 hours of direct sun daily. If you cannot provide enough natural light, use a high output LED grow light.
Excessive fertilizer
PossibleHow to tell: The plant is growing very quickly but the stems are weak and cannot support their own weight. This often happens when using high nitrogen fertilizers.
What to do: Stop fertilizing for the rest of the season. Only use a balanced cactus fertilizer at half strength once during the active growing months.
Find out what's wrong with your peruvian apple cactus
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
Legginess is not fatal, but it is permanent. The thin part will never thicken up, so you may eventually want to cut it off once the plant is healthier.
Stopping it coming back
Place your cactus in the sunniest window you have, preferably facing south. Rotate the pot every month to ensure even growth on all sides.
Peruvian apple cactus: leggy growth? Check yours with a photo
Every plant is a little different. Take a photo of your peruvian apple cactus 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
- Will the thin part ever get thick again?
- No, that growth is set. Once the plant gets enough light, the new growth will be thick and healthy again.
- Can I cut off the thin part?
- Yes, you can prune it back to a thicker section. Make sure to let the cut callous over for a few days before exposing it to bright sun.
More problems with Peruvian apple cactus
Back to the Peruvian apple cactus 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.