Agapanthus inapertus subsp. pendulus 'Graskop'

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RHS Plant Profile

closed African lily 'Graskop'

RHS

Synonyms

Agapanthus inapertus 'Graskop'

Herbaceous Perennial

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A clump-forming, upright perennial up to 1m tall with long, strap-shaped green leaves. Tubular, drooping dark violet-blue flowers are borne in clusters from mid-summer to autumn on erect stems

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2鈥�5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.5-1 metres

Growing Conditions

Chalk Clay Loam Sand

Moisture: Moist but well鈥揹rained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: South鈥揻acing or East鈥揻acing or West鈥揻acing
Exposure: 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): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Amaryllidaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Bushy
Potentially harmful: Humans/Pets (dogs, cats): harmful if eaten. Wear gloves and other protective equipment when handling. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Agapanthus are clump-forming perennials with narrowly strap-shaped leaves, evergreen in some species, and erect stems bearing umbels of funnel-shaped blue or white flowers
Name Status: Accepted

How to Grow

Cultivation

Grow in fertile, moist but well-drained soil in full sun or grow in a container. In cold areas, mulch well overwinter. See Agapanthus cultivation for further advice

Propagation

Propagate by division every 3 to 4 years in spring

Suggested planting locations and garden types

Coastal
Patio and container plants
City and courtyard gardens
Cottage and informal garden
Mediterranean climate plants
Flower borders and beds
Wall side borders

Pruning

No need to cut down in the autumn, as the seedheads look attractive over winter

Pests

May be susceptible to slugs and snails and agapanthus gall midge

Diseases

May be susceptible to a virus