Agapanthus inapertus 'Midnight Cascade'

RHS Plant Profile

closed African lily 'Midnight Cascade'

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Synonyms

Agapanthus 'Midnight Cascade'

Herbaceous Perennial

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A clump-forming, deciduous, herbaceous perennial, producing narrow, strap-shaped, mid-green foliage, to a height of around 40cm (16in) and spreading to around 40cm (16in). Hemisperical heads of pendulous, funnel-shaped flowers in very deep purple, are produced in late summer, on straight, green stems, to approximately 80cm (32in) high.

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

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

Growing Conditions

Chalk Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: South–facing or West–facing
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): H4

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Amaryllidaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Clump forming
Potentially harmful: Al parts of the plant are harmful if eaten
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: Unresolved

How to Grow

Cultivation

Grow in a light, well-drained soil and a position in full sun for best flowering. Plants benefit from regular watering and feeding during the growing season April to September. Protect plants in cold areas against frost damage by wrapping with several layers of fleece. See agapanthus cultivation for more details

Propagation

Propagate by division in spring, or by seed, but bear in mind that seed-raised plants may not come true to the parent plant, where it is a hybrid cultivar

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Gravel garden
Mediterranean climate plants
Patio and container plants
Banks and slopes
Cut flowers
Flower borders and beds
Wall side borders

Pruning

No pruning required other than to remove any dead foliage or spent flower heads

Pests

May be susceptible to slugs and snails and agapanthus gall midge

Diseases

May be susceptible to a virus