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Passionflower

Passiflora caerulea

Also called Blue passion flower and Passiflora

Garden plant · Climbers

It dies to the ground in a hard winter and comes back from the root. Do not dig it out in April — wait until June before deciding it is gone.

Care at a glance

Ease
Medium
Water
Every 5 daysWater the ground — water at the base, in the morning, not over the leaves.
Light
Full sun, against a warm wall
Feed
Every 21 days
Humidity
Average
Hardiness
Hardy — an average winter RHS H4, to -10°C
Size
5 m tall · 3 m across
Lifecycle
Climber
Origin
South America

Is it safe for pets and people?

PetsNothing recorded against it

No animal-poison authority lists this plant either way.

PeopleNot checked yet

Nobody has checked this one against a source for us yet, so treat it as unknown rather than safe.

Checked against ASPCA and RHS on 2026-08-03. Where a source says nothing, we say nothing.

A guide, not veterinary or medical advice. If a pet or a person has eaten a plant and you are worried, call your vet or doctor now — don’t wait for signs to appear. Spotted a mistake? Tell us.

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