Allium stipitatum

RHS Plant Profile

Persian shallot

visionspictures.com

Other common names

Persian onion

Synonyms

Allium rosenbachianum misapplied
Allium hirtifolium

Bulbs

Buy this from Plant Nurseries
2 Suppliers

Bulbous perennial with ribbed stems 60-150cm tall and 4-6 broadly strap-shaped, grey-green, basal leaves 30-45cm long, hairy beneath. In early summer, bears tightly packed umbels, up to 10cm across, of star-shaped, pink/lilac flowers.

Position

Full sun

Soil Types

Loam, Sand, Chalk

Max Height

1-1.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 1-1.5 metres

Growing Conditions

Loam Sand Chalk

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

Position

Full sun

Aspect: East–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): H7
Drought Resistance: Yes

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Amaryllidaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Columnar upright
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: Correct
Plant Range: Turkey to C Asia

How to Grow

Cultivation

Easy to grow in fertile well-drained soil. Add grit when grown in clay soils to improve drainage. See allium cultivation for further advice

Propagation

Propagate by seed, sowing in containers in a cold frame when just ripe or in the spring. Alternatively, remove offsets in autumn

Suggested planting locations and garden types

Cottage and informal garden
Gravel garden
Mediterranean climate plants
Wildlife gardens
Flower borders and beds
Wall side borders

Pruning

No pruning required

Pests

Generally pest-free

Diseases

May be susceptible to onion white rot and downy mildews