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Annual BiennialSynonym

Osteospermum Astra Rose White (Astra Series)^PBR

African daisy [Astra Rose White]

A compact, mound-forming, half-hardy biennial to 30cm in height with sparsely toothed, spoon-shaped, glossy, mid green leaves and daisy-like pink flowers, fading to white at the base, with a central blue eye, from summer into autumn

Synonyms

Dimorphotheca 'Floroswhipi'
Osteospermum 'Floroswhipi'^PBR
see moreOsteospermum Astra Rose White (Astra Series)^PBR

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Ultimate height

0.1–0.5 metres

Time to ultimate height

1–2 years

Ultimate spread

0.1–0.5 metres

Chalk

Loam

Sand

Moisture

Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or West–facing or East–facing

Exposure

Exposed or Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Asteraceae
Native to GB / Ireland: No
Foliage: Semi evergreen
Habit: Bushy
Potentially harmful: Pets (rabbits, rodents): Harmful if eaten. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Dimorhotheca can be annuals or woody-based, evergreen perennials with simple, alternate leaves and large daisy-like flower-heads in summer and autumn
Name status: Trade

How to grow

Cultivation

Grow in light, moderately fertile, well-drained soil in a warm, sunny position. Tolerate poor soil, salt or drought. In frosty areas overwinter cuttings under glass

Propagation

Propagate by softwood cuttings in late spring or semi-hardwood cuttings in late summer from non-flowering shoots, protect from frost over winter and plant out after all chance of frosts is past

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Gravel garden
Mediterranean climate plants
Patio and container plants
Bedding
Conservatory and greenhouse
Flower borders and beds

Pruning

Deadhead regularly and tidy in spring. No pruning required

Pests

May be susceptible to aphids

Diseases

May be susceptible to downy mildews and Verticillium wilt

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