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Annual Biennial

Zea mays 'Ovation'
  • RHS AGM

sweet corn 'Ovation'

This early to mid-season 'supersweet' variety produces large cobs of 20 to 23 cm long, filled to the tip with delicious sweet kernels. It’s vigorous and consistent so looks impressive in the allotment. Sow indoors: April to May. Sow / plant outdoors: May. Harvest: August to September

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

East–facing or 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

Grow in a sunny, sheltered spot in soil that has been enriched with well-rotted organic matter. Sweetcorn can tolerate many soil types but prefers well-drained soils with a pH between 5.5 and 7.0. As this is a ‘Supersweet’ type, avoid growing next to other varieties to prevent cross pollination if you want the cobs to retain their sweet taste. 'Supersweet' varieties can also be more temperamental so the seeds need to be sown at the correct time, at the correct depth and in the correct temperature - check the packet for more information. Harvest from August to September. See sweetcorn cultivation for futher information.

Propagation

Sow seeds undercover from mid-spring in pots or modules and then plant out May - June after hardening off and the last frosts have passed. Alternatively sow 'in situ' from late spring to early summer. Always plant in a grid pattern to ensure pollination. See sowing vegetable seeds

Suggested planting locations and garden types
Pruning

No pruning required.

Pests

May be susceptible to damage from birds, slugs, mice and badgers.

Diseases

May be susceptible to smuts which appear as large galls on the cobs and stalks in hot weather.

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