Check these first
- Observe the light levels in your plant's current spot.
- Check if the stems are leaning toward a window.
- Measure the distance between the leaf nodes.
Likely causes
Insufficient Light
Most likelyHow to tell: The plant develops long spaces between leaves and leans heavily toward the nearest light source. It looks thin rather than bushy.
What to do: Move the plant to a spot that receives full, direct sun for at least 6 to 8 hours a day. If you are growing indoors, place it directly in a south facing window or under a strong grow light.
Overcrowding
PossibleHow to tell: This is less common for this plant, but usually happens when seedlings are too close together and compete for resources. The plants grow tall and spindly as they fight for space.
What to do: Thin out your seedlings so each plant has at least 12 inches of space around it. This allows each plant to get the airflow and light it needs to grow strong.
Find out what's wrong with your redroot pigweed
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
It is time to worry if the stems become so weak they can no longer support their own weight. Minor stretching is normal during cloudy weeks.
Stopping it coming back
Keep your pigweed in the brightest spot you have and thin seedlings early to prevent competition.
Redroot pigweed: leggy growth? Check yours with a photo
Every plant is a little different. Take a photo of your redroot pigweed 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 prune back a leggy pigweed?
- Yes, you can trim the top growth to encourage side branching. Just make sure you move it to a brighter spot afterward or it will just grow back leggy.
- Will my plant recover its shape?
- The stretched parts will not shrink back, but new growth will be compact if you provide better light. You can prune the old growth to improve the look.
More problems with redroot pigweed
- Why are there dark spots on my redroot pigweed leaves?
- Why is my redroot pigweed drooping?
- Why are my redroot pigweed leaves turning yellow?
- Why are the tips of my redroot pigweed leaves turning brown?
- Why is my redroot pigweed dropping its leaves?
- Why are there bugs on my redroot pigweed?
- Why is my redroot pigweed wilting?
- Why are my redroot pigweed leaves curling?
Back to the redroot pigweed 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.

