Are these spots contagious to other plants?

If the spots are caused by a fungus, it can spread to nearby plants. It is best to isolate the affected plant until it recovers.

Can I use neem oil on my passion flower?

Yes, neem oil is effective for both pests and minor fungal issues. Apply it in the evening to avoid leaf burn from the sun.

Passion Flower: spots, causes and fixes

Check these first

Inspect the undersides of leaves for tiny insects.
Check if the leaves are staying wet after watering.
Ensure there is good airflow around the plant.

Likely causes

Fungal Infection
Possible
How to tell: Small brown or black spots appear on the leaves, sometimes with a yellow halo. This often occurs when leaves stay wet for too long after watering.
What to do: Remove the affected leaves to stop the spread. Improve air circulation around the plant and avoid getting water on the leaves when you water.
Aphid Damage
Possible
How to tell: Tiny yellow or brown spots appear where aphids have been feeding on the plant juices. You will likely see the small insects clustering on new growth.
What to do: Wipe the leaves with a damp cloth or use a gentle insecticidal soap. Repeat the treatment every 5 to 7 days until the aphids are gone.

Find out what's wrong with your passion flower

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

If the spots are spreading rapidly and causing the leaves to yellow and fall, you need to act immediately. A stray spot here or there is usually nothing to worry about.

Stopping it coming back

Water at the base of the plant to keep foliage dry and keep the plant in a well ventilated area.

Keep your passion flower 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

Are these spots contagious to other plants?: If the spots are caused by a fungus, it can spread to nearby plants. It is best to isolate the affected plant until it recovers.
Can I use neem oil on my passion flower?: Yes, neem oil is effective for both pests and minor fungal issues. Apply it in the evening to avoid leaf burn from the sun.

Why are there spots on my passion flower leaves?