Will these bugs kill my hydrangea?

Usually no, but they can weaken the plant if left unchecked for a long time. Early detection is key to keeping your vine strong.

Can I use chemical pesticides?

It is better to stick with gentle options like insecticidal soap or neem oil first. Harsh chemicals can harm the beneficial insects that help your garden.

Climbing hydrangea: pests, causes and fixes

Check these first

Inspect the undersides of leaves for tiny moving insects.
Look for sticky residue on the stems or leaves.
Check for fine webbing between the leaf joints.

Likely causes

Aphids
Most likely
How to tell: You will see clusters of tiny green or black insects on new growth or the undersides of leaves. They often leave behind a sticky substance called honeydew.
What to do: Spray the plant with a strong stream of water from your hose to knock them off. If they persist, apply insecticidal soap once a week for 3 weeks.
Spider Mites
Possible
How to tell: Look for fine, silky webbing between leaves and tiny yellow dots on the foliage. These pests thrive in hot, dry conditions.
What to do: Increase humidity by misting the foliage or ensuring the plant is well watered. Wipe the leaves with a damp cloth and use neem oil if the infestation is heavy.

Find out what's wrong with your climbing hydrangea

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

A few bugs are usually manageable, but you should worry if the leaves start curling or turning yellow from the feeding damage. If the entire plant is covered in webbing, it is time for a serious treatment plan.

Stopping it coming back

Keep your hydrangea healthy with consistent watering and good airflow to discourage pests from settling in.

Keep your climbing hydrangea 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

Will these bugs kill my hydrangea?: Usually no, but they can weaken the plant if left unchecked for a long time. Early detection is key to keeping your vine strong.
Can I use chemical pesticides?: It is better to stick with gentle options like insecticidal soap or neem oil first. Harsh chemicals can harm the beneficial insects that help your garden.

Why are there bugs on my climbing hydrangea?