Help us achieve our goals:
make a donation »
Join the RHS today and
support our charity
Free personalised gardening advice
RHS members get reduced ticket prices
RHS members get free access to RHS Gardens
Reduced prices on RHS Garden courses and workshops
020 3176 5800
Mon – Fri | 9am – 5pm
Make a donation
Join the RHS today and support our charity
Register for free to receive our newsletters, add comments to blogs/articles and to save content.
We have combined these two powerful search tools into a single Find a Plant service searching over 250,000 plant records.
Virtually all of the features of the old searches are still available and in addition we have added several new features to create a more comprehensive and user friendly search experience.
When using this search
Search by plant name, key attributes or both to find plant details and a list of
AGM plants have been through a rigorous trial and assessment programme. They are:
© RHS 1990
the RHS today and get 12 months for the price of 9
Other common names
red passion flower
Passiflora are mostly tender tendril-climbing shrubs, with simple or palmately-lobed, generally evergreen leaves and showy flowers of distinctive structure with often colourful coronal filaments, followed by conspicuous fruits, edible in some species
P. racemosa is an evergreen climber to 5m, with 3-lobed leaves and pendent racemes of crimson flowers to 12cm across, with dark purple and white coronal filaments followed by pale green fruits
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect South-facing or East-facing
MoistureMoist but well-drained
SoilSand, Clay, Chalk, Loam
pHAcid, Alkaline, Neutral
Time to ultimate height
Under glass grow in loam-based potting compost in full light with shade from hot sun. Water freely when in growth and keep just moist in winter. May be grown outdoors in most fertile, moist but well-drained soils. Provide support for climbing stems and shelter from cold, drying winds
Propagate by seed sown at 13 to 18 °C in spring or root semi-hardwood cuttings in summer. Layering can be carried out in spring or autumn
Suggested planting locations and garden types
Patio & Container Plants
Pruning Pruning group 11 or pruning group 12 in early spring
Pests Glasshouse red spider mite, scale insects and glasshouse whitefly may be a problem under glass
Generally disease free
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.
Like this page on facebook
Click on the Tweet button below to compose your tweet.
Join the RHS today and get 12 months for the price of 9