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Zea mays 'Swift'
  • RHS AGM

sweet corn 'Swift' (extra tender sweet)

This popular, quick growing 'extra tender-sweet' variety is well adapted to British conditions, producing one to two, well filled 20cm long cobs per plant, from late summer

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Size
Ultimate height
1.5–2.5 metres
Time to ultimate height
1 year
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Green Green Green Yellow
Autumn Green Green Green Yellow
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Sheltered
Hardiness
H2
Botanical details
Family
Poaceae
Native to the UK
No
Foliage
Deciduous
Habit
Columnar upright
Genus

A genus of five, large, flowering plants the grass family. The most important species, Zea mays is widely cultivated food crop. Male flowers are borne in large, terminal inflorescences (tassels) and female flowers are hidden in clusters in the leaf axils

Name status

Accepted

How to grow

Cultivation

Needs a long, warm growing season. Start seeds under glass in mid-spring and plant out, or sow direct, after all risk of frost has passed. Plant in blocks (to aid wind pollination) in fertile soil in a warm, sunny, sheltered position. See Grow your own sweetcorn.

Propagation

Propagate by seed. See sowing vegetable seeds

Suggested planting locations and garden types
Pruning

No pruning required

Pests

May be susceptible to mice eating seeds, slugs and snails eating young plants and birds and badgers taking the crop

Diseases

May be susceptible to maize smut

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.