Allium porrum (Autumn Giant 2 Group) 'Porvite'

RHS Plant Profile
leek 'Porvite' (Autumn Giant 2 Group)
Herbaceous Perennial Herbs - Culinary

An excellent variety producing mid-green, erect foliage, and heavy, uniform stems. It stands well in the garden over a long period and shows resistance to bulbiness and bolting

Position

Full sun

Soil Types

Loam, Sand, Clay, Chalk

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

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

Growing Conditions

Loam Sand Clay Chalk
Moisture
Well–drained
pH
Neutral or Alkaline

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered
Hardiness
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Amaryllidaceae
Native to GB/Ireland
No
Foliage
Deciduous
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
Unresolved

How to Grow

Cultivation

Grow in fertile, moist but well drained soil in full sun. Start in modules indoors and transplant outdoors later or sow seeds outdoors in March and April then transplant into final position in early summer. See leek cultivation

Propagation

Propagate by seed. See sowing vegetable seeds

Pruning

No pruning required

Pests

May be susceptible to slugs and snails, leek moth, onion fly and onion thrips leek moth and birds. Protect with fleece or netting to prevent adult moths from laying eggs

Diseases

May be susceptible to onion white rot and leek rust