Unwins Sweetcorn Strong Star F1 Seeds

Enjoy deliciously sweet homegrown cobs with Unwins Sweetcorn Strong Star F1 Seeds — a super-sweet variety bred for excellent flavour, strong growth, and easy picking. This F1 hybrid produces vigorous plants that typically yield two large cobs per plant, making it a brilliant choice for gardeners who want a rewarding crop with big results.

Strong Star can be sown indoors or outdoors during spring and harvested from late summer. The cobs are packed with sweetness and are perfect for boiling and smothering in butter, or roasting on the BBQ for a smoky, golden finish. It’s also loved by pollinators, making it a great addition to a wildlife-friendly garden.

Key Features

• Super-sweet F1 hybrid sweetcorn

• Typically yields two large cobs per plant

• Early cropper with reliable performance

• Vigorous plants with strong growth

• Easy to pick and deliciously sweet

• Great boiled, buttered, or BBQ roasted

• Loved by pollinators

Growing Information

Sowing Time: Apr – May
Harvest Time: Aug – Sep
Sowing Depth: 2.5cm
Sow Indoors: Yes
Sow Outdoors: Yes
Time to Germination: 1–2 weeks
Time to Flower: approx. 4 months

Technical Specifications

SKU: 30310685
Pack Quantity: 35 seeds
Colour: Yellow
Plant Height: 1.8m
Plant Spacing: 90cm
Row Spacing: 90cm
Spread: 90cm
Sowing Depth: 2.5cm
Sow Time to Germination: 1–2 weeks
Sow Time to Flower: 4 months

Why choose Kean’s Claremorris

At Kean’s Claremorris, we stock high-performing seed varieties that are perfect for Irish growing conditions. Whether you're planting a full veg patch or trying something new in the garden, you’ll find quality seeds, trusted brands, and friendly advice to help you grow a more successful harvest.