About
Are compact, erect annuals to approximately 40cm tall with lance-shaped, mid-green leaves. Double flowers borne from summer into autumn are made up of bi-coloured petals in a range of colours, mainly shades of red tipped with yellow, orange or cream.
About the genus
Zinnia can be annuals, perennials or sub-shrubs, with branching stems bearing opposite leaves and solitary terminal flower-heads in summer
Growing conditions
SunlightFull sun
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectSouth-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH2
Plant details
Plant typeAnnual Biennial
HabitBushy
FoliageDeciduous
Height0.1-0.5 metres
Spread0.1-0.5 metres
Time to full height1 year
Suggested usesCottage and informal garden, Patio and container plants, City and courtyard gardens
Care notes
CultivationGrow in a fertile, well drained soil in full sun
PruningDeadhead to prolong flowering. Pinch back stems of young plants to encourage branching unless long-stemmed flowers are required
PropagationPropagate by seed; resents root disturbance so either sow in situ in late spring after the danger of frost has passed or take care when transplanting from seed sown under cover with heat in early spring
Pest resistanceGenerally pest-free
Disease resistanceMay be susceptible to foot and root rot, grey moulds, fungal leaf spot and powdery mildews