Allium fistulosum 'Parade'

RHS Plant Profile
onion (salad) 'Parade'

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A bulbous perennial usually grown as an annual for its edible shoots, with dark green leaves and green to creamy-white flowers appearing in mid-summer. An attractive, fast-growing, non-bulbing variety of Japanese spring onion with upright foliage. Sow February to July and harvest when young

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Size

Time to Maturity
1 year

Growing Conditions

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

Position

Full sun Partial shade
Aspect
East–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)
H3

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Amaryllidaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Clump forming
Genus
Allium are bulbous herbaceous perennials with a strong onion or garlic scent, linear, strap-shaped or cylindrical basal leaves and star-shaped or bell-shaped flowers in an umbel on a leafless stem
Name Status
Accepted

How to Grow

Cultivation

Easy to grow in fertile, well-drained soil. See how to grow: salad onions for further advice

Propagation

Propagate by seed. See sowing vegetable seeds

Suggested planting locations and garden types

  • Cottage and informal garden
  • Wildlife gardens

Pruning

To harvest as a vegetable, lift the whole plant before flowering stems form. For ornamentals, remove faded flower heads to prevent self-seeding

Pests

May be susceptible to slugs and snails

Diseases

May be susceptible to onion white rot and downy mildew