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AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
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Other common names blue passion flower blue crown
common passion flower flower of five wounds southern beauty wild apricot
Synonyms Passiflora chinensis Passiflora mayana
Family Passifloraceae
Genus 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
Details P. caerulea is a vigorous large deciduous or semi-evergreen climber with twining tendrils. Leaves dark green, with 5-7 finger-like lobes. Flowers to 8cm in width, white, with blue and purple coronal filaments. Fruits ovoid, 4cm, orange
Plant range S America
Foliage Semi-evergreen
Habit Climbing
Toxicity Ingestion may cause severe discomfort
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H4
Full Sun
Partial Shade
Aspect South-facing or West-facing
Exposure Sheltered
Chalk
Loam
Sand
MoistureMoist but well-drained
SoilChalk, Loam, Sand
pHAcid, Alkaline, Neutral
Ultimate height 8-12 metres
Ultimate spread 2.5-4 metres
Time to ultimate height 5-10 years
Cultivation Fast-growing climber for sun or partial shade, thrives in moist but well-drained soil. In cold areas, grow in a container and overwinter indoors. Note that due to its vigorous nature in some gardens it has the potential to become a nuisance
Propagation Propagate by seed, semi-hardwood cuttings or by layering in spring or autumn
Suggested planting locations and garden types Wall-side Borders City & Courtyard Gardens Sub-tropical Cottage & Informal Garden Patio & Container Plants
Pruning Pruning group 11 or pruning group 12 if necessary, in early spring
Pests glasshouse red spider mite, glasshouse whitefly, mealybugs and scale insects may be a problem under glass
Diseases May be subject to a virus
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
blue passion flower
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