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Annual BiennialBedding

Helianthus annuus 'Ms Mars Improved'
  • RHS Plants for pollinators

sunflower 'Ms Mars Improved'

'Ms Mars Improved' is a compact, branching annual to 60cm tall with purple-flushed, oval to heart-shaped leaves. Flowers up to 15cm across borne from summer into early autumn have very dark centres surrounded by deep pink-red petals the outer tips of which are cream coloured

Size
Ultimate height
0.5–1 metres
Time to ultimate height
1–2 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Purple
Summer Cream Pink Red Green Purple
Autumn Cream Pink Red Green Purple
Winter
Position
  • Full sun
Aspect

West–facing or South–facing

Exposure
Exposed or Sheltered
Hardiness
H4
Botanical details
Family
Asteraceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus

Helianthus can be tall, erect annuals, tuberous or rhizomatous perennials, with coarse simple leaves and large daisy-like flower-heads

Name status

Not established

How to grow

Cultivation

Grow in moderately fertile, neutral to alkaline, humus-rich, moist but well-drained soil in full sun. Ideal for growing in containers. The flowers attract bees and other insects, and the edible seeds provide food for birds, especially finches

Propagation

Propagate by seed or division. Divide established clumps every 2-4 years to both increase plants and retain vigour. See sowing seeds indoors for further advice

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

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

May be affected by powdery mildews

Get involved

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