Will my leggy stems fill back in?

Unfortunately, the stretched parts of the stem will not thicken up. It is best to prune them back to encourage new, stronger growth.

Does common centaury flower indoors?

Common centaury can flower indoors, but it needs very high light levels to do so. Without full sun, it will likely remain leggy and fail to bloom.

Why is my common centaury looking so leggy? Causes and fixes

Check these first

Observe how many hours of direct sun the plant gets daily.
Check if the plant is leaning toward a light source.
Rotate the pot to ensure all sides get equal light.

Likely causes

Insufficient light
Most likely
How to tell: The stems are long, thin, and spaced far apart, and the plant leans heavily toward the nearest window.
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 in a south facing window.
Lack of pruning
Possible
How to tell: It is less common for this plant to get leggy from lack of pruning, as this usually happens when the plant is not getting enough light. If the plant is healthy but tall, it may just need a trim to encourage bushier growth.
What to do: Pinch back the growing tips of the stems to encourage side branching. Do this in the spring to help the plant maintain a compact shape.

Leggy growth in other plants

Find out what's wrong with your common centaury

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.

When to worry

It is normal for the plant to stretch slightly during the darker winter months. You should worry if the stems become so thin they can no longer support the weight of the leaves.

Stopping it coming back

Keep your centaury in a bright, sunny location year round. Rotate the pot every week to ensure even growth on all sides.

Common centaury: leggy growth? Check yours with a photo

Every plant is a little different. Take a photo of your common centaury 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.

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Questions people ask

Will my leggy stems fill back in?: Unfortunately, the stretched parts of the stem will not thicken up. It is best to prune them back to encourage new, stronger growth.
Does common centaury flower indoors?: Common centaury can flower indoors, but it needs very high light levels to do so. Without full sun, it will likely remain leggy and fail to bloom.

Why is my common centaury looking so leggy?