Lettuce Iceberg Winter Seed

Lettuce Iceberg Winter produces large, crisp heads for cool-season salads, sandwiches and lettuce cups.

View the South Africa-specific grow guide: Lettuce Grow Guide for South Africa

Quick Grow Facts

• Plant Type: Cool-season leafy vegetable annual.
• Scientific Name: Lactuca sativa
• General Sowing Time: Autumn to winter in most South African gardens; early spring sowings are also useful in cooler areas.
• Position: Full sun during cool weather.
• Sow Depth: 5–10 mm
• Spacing: 25-30 cm apart so large heads have space to develop.
• Germination: Best in cool, evenly moist conditions; heat above about 27 °C can inhibit emergence
• Height: Around 20-30 cm.

Why Grow This Variety

• The large iceberg type is intended for crisp winter salad heads.
• The source copy notes strong winter performance.
• Pelleted seed is easier to place and thin accurately.
• Succession sowing can extend harvests across the cooler months.

Garden Uses

Grow Iceberg Winter in a sunny winter vegetable bed or raised planter and harvest the heads for salads, sandwiches or crisp lettuce cups.

Growing Notes

• Sow shallowly, about 5–10 mm, following the packet directions for raw or pelleted seed.
• Keep the seedbed cool and evenly moist; high soil temperatures can delay or reduce germination.
• Use full sun in cool weather and light afternoon shade as temperatures rise.
• Sow small batches in the variety’s recommended seasonal window for steadier harvests.
• Harvest loose leaves as needed or cut the head before heat triggers bolting.

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