Allium porrum (Autumn Giant 2 Group) 'Porvite'
leek 'Porvite' (Autumn Giant 2 Group)
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
Size
Ultimate height
0.1–0.5 metresTime to ultimate height
1 yearUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Well–drainedpH
Neutral, AlkalineColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Green | |||
| Winter | Green |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered Hardiness
H4Botanical 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
Suggested planting locations and garden types
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
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.