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Parris Island Cos

Lettuce

Lactuca sativa 'Parris Island Cos'

Overview
The gold standard romaine lettuce that has been the backbone of American Caesar salads since 1952, developed specifically for hot, humid Southern growing conditions. This heat-tolerant variety produces tall, upright heads with thick, crunchy ribs and dark green outer leaves that blanch to creamy yellow hearts. Known for exceptional bolt resistance and reliable performance, it's the romaine that succeeds where others fail in challenging climates.
Planting
Direct sow 2-4 weeks before last frost. Can succession plant through summer in most climates. Start indoors in extreme heat.
Growing
Sun: partial. Soil pH: 6–7. Space plants 8" apart. Germination: 7-12.
Pests & diseases
Common pests: Aphids, thrips, cabbage loopers, leaf miners. Common diseases: Downy mildew, lettuce drop, bacterial leaf spot.