About
Oxford Blue' is an erect annual up to 75cm tall with finely-cut, feathery foilage and deep blue flowers in summer followed by inflated seed pods which can be cut and dried.
About the genus
Nigella are upright, bushy annuals with finely dissected leaves and solitary flowers with 5 blue or white, petal-like sepals and feathery bracts, followed by ornamental seed pods
Growing conditions
SunlightFull sun
Soil typeChalk, Loam, Sand
Soil pHAlkaline, Neutral
Soil moistureWell-drained
AspectSouth-facing, West-facing
ExposureSheltered
UK hardinessH5
Plant details
Plant typeAnnual Biennial
HabitBushy
FoliageDeciduous
Height0.5-1 metres
Spread0.1-0.5 metres
Time to full height1 year
Suggested usesCoastal, Cottage and informal garden, Wildlife gardens, Gravel garden, Wildflower meadow
Care notes
CultivationGrow in any well-drained soil in full sun
PruningNo pruning required
PropagationPropagate by seed
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free