About
Marietta' is an upright herbaceous perennial up to 1.2m high with lance-shaped to linear, pointed, toothed, dark green leaves, to 12cm long, and dense, erect, terminal racemes, 25cm long, of deep violet-blue flowers, in late summer and early autumn.
About the genus
Veronica can be annuals, perennials or sub-shrubs with paired leaves and small flowers usually in terminal or axillary racemes or spikes
Growing conditions
SunlightFull sun, Partial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectNorth-facing, West-facing, South-facing, East-facing
ExposureExposed, Sheltered
UK hardinessH7
Plant details
Plant typeHerbaceous Perennial
HabitColumnar upright
FoliageDeciduous
Height1-1.5 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCity and courtyard gardens, Cottage and informal garden, Wildlife gardens
Care notes
CultivationGrow in loamy, moderately fertile, moist but well-drained soil in full sun or partial shade
PruningDeadhead after flowering, remove faded flower stems in the autumn
PropagationPropagate by division in autumn or spring; propagation for resale is prohibited without a licence
Pest resistanceMay be susceptible to aphids
Disease resistanceMay be susceptible to downy mildews, fungal leaf spot, fungal rot, Phytophthora and sometimes honey fungus