About

Mont Blanc' is a compact perennial to 20cm, commonly grown as an annual, with small leaves and cup-shaped pure white flowers 2cm across in summer.

About the genus

Nierembergia can be annuals, perennials or shrubs, with simple, alternate leaves and cup-shaped or tubular flowers in summer

Growing conditions

SunlightFull sun
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectWest-facing, South-facing
ExposureSheltered
UK hardinessH3

Plant details

Plant typeHerbaceous Perennial, Bedding
HabitBushy
FoliageDeciduous
Height0.1-0.5 metres
Spread0.1-0.5 metres
Time to full height1-2 years
Suggested usesCity and courtyard gardens, Patio and container plants, Cottage and informal garden

Care notes

CultivationBest grown in a sunny, sheltered site in a moist but well-drained soil or grow in a container outside or under glass
PruningNo pruning required
PropagationPropagate by seed or stem tip cuttings
Pest resistanceMay be susceptible to aphids and glasshouse whitefly
Disease resistanceMay be susceptible to a virus