Should I prune the long stems?

You can trim back overly long stems to encourage bushier growth. Always use clean, sharp scissors and cut just above a leaf node.

Does Black Bryony need a trellis?

Yes, it is a vining plant that naturally wants to climb. Providing a support structure helps it grow stronger and keeps it from becoming a tangled mess.

Black Bryony: leggy growth, causes and fixes

Check these first

Evaluate the amount of light the plant receives throughout the day.
Check if the stems have a structure to climb.
Rotate the pot every few days to ensure even growth.

Likely causes

Insufficient Light
Most likely
How to tell: The stems stretch out with large gaps between the leaves as the plant reaches for a light source. The plant will look sparse and weak rather than full.
What to do: Move the plant to a spot with brighter, indirect light. If it is in deep shade, gradually introduce it to more sun over 1 to 2 weeks to prevent leaf scorch.
Lack of Support
Possible
How to tell: The stems are growing long but are flopping over or tangling because they have nothing to climb. This plant is a natural climber and needs a trellis to grow properly.
What to do: Install a small trellis or stake in the pot. Gently guide the stems around the support to encourage upward growth and a more compact shape.

Leggy growth in other plants

Find out what's wrong with your black bryony

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 grow long vines, but it is a problem if the stems are pale and thin. If the plant is healthy and green, it is likely just doing its job as a climber.

Stopping it coming back

Provide a sturdy trellis early on and ensure the plant gets plenty of bright, indirect light. Consistent light prevents the plant from stretching out in search of the sun.

Black Bryony: leggy growth? Check yours with a photo

Every plant is a little different. Take a photo of your black bryony 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.

Get the app · Or check it from a photo now, free

Questions people ask

Should I prune the long stems?: You can trim back overly long stems to encourage bushier growth. Always use clean, sharp scissors and cut just above a leaf node.
Does Black Bryony need a trellis?: Yes, it is a vining plant that naturally wants to climb. Providing a support structure helps it grow stronger and keeps it from becoming a tangled mess.

Why is my Black Bryony growing so long and thin?