Pocket Botanist
Check these first
- Move the plant to a brighter location.
- Rotate the pot every few days to ensure even growth.
- Prune back the longest stems to promote side branching.
Likely causes
Insufficient light
Most likelyHow to tell: The stems are long with large gaps between the leaves. The plant leans heavily toward the nearest light source.
What to do: Move the plant to a spot with brighter, indirect light. You may need to prune back the long stems to encourage bushier growth.
Excessive fertilizer
PossibleHow to tell: The plant grows very fast but the stems are weak and floppy. This often happens when nitrogen levels are too high.
What to do: Stop fertilizing for 2 months. When you resume, use a balanced liquid fertilizer at half strength.
When to worry
Leggy growth is rarely fatal but it makes the plant look sparse. It is normal for the plant to stretch slightly if the days are getting shorter.
Stopping it coming back
Provide consistent bright light throughout the year. Rotate the pot regularly to keep the growth balanced.
Not sure which one it is? Photograph your scarlet pimpernel.
This page lists the usual causes. Pocket Botanist looks at your actual leaf and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.
Questions people ask
- Should I cut the long stems off?
- Yes, pruning will help the plant focus energy on new, compact growth. Make your cuts just above a leaf node.
- Does this mean my plant is dying?
- No, it just means it is unhappy with its light levels. It will recover once you move it to a brighter spot.
More problems with Scarlet pimpernel
Back to the Scarlet pimpernel guide
This article was generated with AI from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.