Hyacinthus orientalis 'Midnight Sky'

Bulbs Conservatory Greenhouse Houseplants

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A bulbous perennial with upright, lance-shaped grey-green leaves. Upright, tubular racemes of star-shaped fragrant, dark purple to black flowers appear in March to April if grown outdoors, or around February time if grown indoors

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0-0.1 metre

Size

Time to Maturity: 1 year
Max Spread: 0-0.1 metre
Max Height: 0.1-0.5 metres

Growing Conditions

Chalk Clay Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: East–facing or North–facing or 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

Fragrance Flower

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Asparagaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Columnar upright
Potentially harmful: Skin irritantOrnamental bulbs - not to be eaten. Pets: Skin irritant. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Hyacinthus are bulbous perennial with glossy, broadly strap-shaped leaves and fragrant, bell-shaped flowers with recurved petals, borne in loose or dense racemes in spring
Name Status: Accepted

How to Grow

Cultivation

Plant 10cm deep in autumn in any moderately fertile, humus-rich, well-drained soil. Will not flower in full shade. Protect container grown bulbs from excessive winter wet. Bulbs for indoor displays need to be specially prepared; plant labels will normally indicate whether the bulb is suitable for indoor use. See hyacinth cultivation

Propagation

Propagate by removing offsets when dormant in summer

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Houseplants
Patio and container plants
Conservatory and greenhouse
Flower borders and beds
Underplanting of roses and shrubs
Cut flowers

Pruning

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

Generally disease-free