Does my passion flower need full sun?

It prefers full sun to partial shade. If your area is extremely hot, some afternoon shade is actually helpful.

Why do the buds fall off before opening?

This is often caused by inconsistent watering or sudden temperature changes. Try to keep the soil moisture steady.

Why is my passion flower not blooming?

Check these first

Evaluate if the plant gets enough direct or bright light.
Check your fertilizer label for the NPK ratio.
Ensure the plant is mature enough to bloom.

Likely causes

Insufficient light
Most likely
How to tell: The plant looks healthy and green but produces no buds. It may be stretching toward the nearest light source.
What to do: Move your plant to a spot where it gets at least 6 hours of bright, indirect light or partial sun. If it is indoors, a south facing window is best.
Excessive nitrogen fertilizer
Possible
How to tell: The plant has lush, dark green leaves but no flowers. Too much nitrogen encourages leaf growth at the expense of blooms.
What to do: Switch to a fertilizer with a higher phosphorus content, often labeled as a bloom booster. Apply it once a month during the growing season.

When to worry

It is normal for young plants to take a season or two to bloom. If your plant is mature and gets plenty of sun, it should flower reliably.

Stopping it coming back

Provide consistent bright light and use a balanced fertilizer formulated for flowering plants.

Not sure which one it is? Photograph your passion flower.

This page lists the usual causes. Pocket Botanist looks at your actual leaf and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.

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Questions people ask

Does my passion flower need full sun?: It prefers full sun to partial shade. If your area is extremely hot, some afternoon shade is actually helpful.
Why do the buds fall off before opening?: This is often caused by inconsistent watering or sudden temperature changes. Try to keep the soil moisture steady.