About
A tall herbaceous perennial to 1.8m with stout stems bearing whorls of lance-shaped, pointed leaves and slender, terminal racemes densely-packed with tiny purple-blue flowers in summer.
About the genus
Veronicastrum are tall herbaceous perennials with erect stems bearing narrow leaves in whorls, and long terminal racemes of small flowers in summer
Growing conditions
SunlightFull sun, Partial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectEast-facing, South-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH7
Plant details
Plant typeHerbaceous Perennial
HabitBushy
FoliageDeciduous
Height1.5-2.5 metres
Spread0.5-1 metres
Time to full height2-5 years
Suggested usesCity and courtyard gardens, Coastal, Cottage and informal garden, Prairie planting, Wildlife gardens
Care notes
CultivationGrow in moderately fertile, humus-rich, moist soil in full sun or partial shade
PruningRemove flower spikes as they fade
PropagationPropagate by division in spring
Pest resistanceMay be susceptible to aphids
Disease resistanceMay be susceptible to Powdery mildews and downy mildews and a leaf spot