Hymenocallis × macrostephana

RHS Plant Profile
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A bulbous perennial with bright green strap-shaped leaves and erect stems to 75cm in height, bearing up to 10 fragrant white flowers, 15cm across, with a large, daffodil-like cup and narrow, curling petals

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, 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 Clay Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
West–facing or East–facing or South–facing or North–facing
Exposure
Sheltered
Hardiness
H1C

Colour & Scent

Fragrance Flower
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Amaryllidaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Tufted
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
Hymenocallis are bulbous perennials, sometimes evergreen, with strap-shaped leaves and umbels of fragrant, daffodil-like flowers with a cup and narrow, spreading tepals
Name Status
Correct

How to Grow

Cultivation

Plant bulbs with the neck and shoulder just above the surface, when dormant, in moderately fertile soil. Under glass grow in a peat-free, loam-based potting compost with added leaf mould and grit in full light. Water freely when in growth and apply a balanced liquid, dilute fertiliser every fortnight. Keep dry when dormant

Propagation

Propagate by seed at 19 to 24°C as soon as ripe or remove offsets in spring

Suggested planting locations and garden types

  • Patio and container plants
  • Low Maintenance

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free