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Annual Biennial

Zinnia Dahlia-flowered Mixed
  • RHS Plants for pollinators

zinnia [Dahlia-flowered Mixed]

A tall, bushy, half-hardy annual, with large semi-double flowers in bright shades of red, pink, yellow and orange; produced on long stems up to 90cm (36in) high. They are ideal to grow for cut flowers and for the wildlife garden, where they will be attractive to pollinators such as bees and butterflies.

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
1 year
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Orange Pink Red Yellow Green
Autumn Green
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Sheltered
Hardiness
H2
Botanical details
Family
Asteraceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus

Zinnia can be annuals, perennials or sub-shrubs, with branching stems bearing opposite leaves and solitary terminal flower-heads in summer

Name status

Trade

How to grow

Cultivation

Grow in well-drained, fertile, humus-rich soil in a warm, sunny position

Propagation

Propagate by seed sown in pots in spring or, in warm areas, sown in situ in late spring

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Wildlife gardens
  • Bedding
  • Cut flowers
  • Flower borders and beds
Pruning

Deadhead to prolong flowering

Pests

Generally pest-free

Diseases

May be susceptible to foot and root rot, grey moulds, fungal leaf spot and powdery mildews

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