Is my butterfly bush dying if it drops leaves?

Not necessarily, as it is often a survival response to stress. Check the stems by scratching the bark; if it is green underneath, the plant is still alive.

Do butterfly bushes drop leaves in winter?

Yes, they are deciduous and will lose all their leaves when the weather turns cold. This is a natural part of their cycle.

Why is my butterfly bush losing leaves? Causes and fixes

Check these first

Examine the undersides of the leaves for tiny pests.
Check if the soil has pulled away from the edges of the planting hole.
Look for yellowing leaves before they drop.

Likely causes

Severe drought
Most likely
How to tell: Leaves turn yellow or brown and fall off starting from the bottom of the stems. The soil will be very dry and cracked.
What to do: Water the plant deeply once a week during dry spells. Ensure the water reaches the root zone rather than just wetting the surface.
Spider mites
Possible
How to tell: You will see tiny stippling or white dots on the leaves. Look closely for fine webbing between the leaves.
What to do: Spray the foliage with a strong stream of water to knock the mites off. If the infestation is heavy, apply insecticidal soap every 5 to 7 days.

Find out what's wrong with your butterfly bush

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

Worry if the plant loses a large percentage of its leaves in a short time. It is normal for a few older leaves to drop as the plant grows.

Stopping it coming back

Keep the plant well hydrated and ensure it gets full sun. Avoid overhead watering in the evening to keep the foliage dry.

Keep your butterfly bush healthy from here

Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked. Identification and a health check are free.

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

Questions people ask

Is my butterfly bush dying if it drops leaves?: Not necessarily, as it is often a survival response to stress. Check the stems by scratching the bark; if it is green underneath, the plant is still alive.
Do butterfly bushes drop leaves in winter?: Yes, they are deciduous and will lose all their leaves when the weather turns cold. This is a natural part of their cycle.

Why is my butterfly bush losing leaves?