Muscari armeniacum 'Atlantic'

RHS Plant Profile
grape hyacinth 'Atlantic'

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Synonyms

Muscari armeniacum 'Atlantic'

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Bulbs
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A vigorous, compact, clump-forming, perennial bulb, to around 20cm high in flower, with narrow, neat linear green leaves. In spring, produces densely packed spikes of small, bright violet-blue flowers with white tips

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
2–5 years
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
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)
H6

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
Bushy, Clump forming
Potentially harmful
Ornamental bulbs - not to be eaten. Wear gloves and other protective equipment when handling Pets: Ornamental bulbs - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus
Muscari are bulbous perennials with linear or strap-shaped leaves and small bell-shaped, tubular or urn-shaped flowers borne in a dense raceme on an erect leafless stem
Name Status
Accepted

How to Grow

Cultivation

Plant 10cm deep in autumn in any moderately fertile, well-drained soil. Lift and divide congested clumps in summer to maintain vigour. Spreads readily in good conditions; good for naturalising in meadows and wildlife gardens - see bulbs: naturalising and https://www.rhs.org.uk/plants/trials-awards for further information about RHS plant trials and awards

Propagation

Separate offsets in summer or propagate by seed, sown in autumn, in containers in a cold frame; cultivars may not come true from seed

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Rock garden
  • Gravel garden
  • Coastal
  • Banks and slopes
  • Flower borders and beds
  • Cut flowers

Pruning

No pruning requiredNo pruning required, but remove spent foliage and cutting back in autumn may be needed

Pests

Generally pest-free

Diseases

May be susceptible to fungal infections including anther smuts and bluebell rust (see rust diseases), and bacterial soft rot and some virus diseases