Platycodon grandiflorus 'Pumilum' (Pumilum Balloon Flower, Pumilum Japanese Bell Flower)


Botanical Information

FamilyCampanulaceae
GenusPlatycodon
Speciesgrandiflorus
Cultivar'Pumilum'
CategoryPerennials
OriginEastern Asia.

Details

USDA Hardiness Zone3 - 8
USDA Hardiness Ref.
Canadian Hardiness Zone1a - 7a
Canada Hardiness Ref.
RHS Hardiness ZoneH5 - H7
RHS Hardiness Ref.
Temperature (°C)-40
Temperature (°F)-40
Height30 - 50 cm
Spread30 - 50 cm
GrowthMedium
Flowering PeriodJune, July, August

Description and Growing Information

ID CharacteristicDarker purple flowers than the main species.
ShapeUpright clumping.
LandscapeRock gardens, edging, containers.
CultivationThis low maintenance herbaceous perennial requires medium water and between full sun to partial shade in moist but well-drained soil of any acidity.
PestsSlugs, snails and root rot if soil is too wet.
Notable SpecimensUniversity of Alberta Botanic Garden, Devon, Alberta, Canada.
HabitatHorticultural origin.
Leaf DescriptionPinnate serrated leaves that grow at the base of flower stems and along leaf stems.
Flower DescriptionSolitary, terminal, open bell-shaped 5 - pinnate-petaled blooms.
Colour DescriptionMedium to deep green leaves and stems. Deep purple to indigo blooms.
Texture DescriptionSoft.

Photographs