About

A tender perennial grown as an annual, with spreading stems, fine foliage and glittering white flowers from late spring until autumn.

About the genus

Lobelia can be annuals, perennials or shrubs, with simple leaves and showy 2-lipped flowers that may be solitary or in racemes or panicles

Growing conditions

SunlightFull sun, Partial shade
Soil typeLoam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectNorth-facing, East-facing, South-facing, West-facing
ExposureSheltered
UK hardinessH2

Plant details

Plant typeAnnual Biennial, Bedding
HabitTrailing
FoliageDeciduous
Height0.1-0.5 metres
Spread0.1-0.5 metres
Time to full height1 year
Suggested usesCity and courtyard gardens, Cottage and informal garden, Patio and container plants
ToxicityHarmful if eaten, skin irritant. Wear gloves and other protective equipment when handling Wear gloves and other protective equipment when handling. Pets: Harmful if eaten, skin irritant. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants

Care notes

CultivationBest in moist but well-drained soil, in light shade. Ideal for containers
PruningNo pruning required
PropagationPropagate by softwood cuttings
Pest resistanceMay be susceptible to slugs
Disease resistanceGenerally disease-free