Garden Seeds
Lettuce Seeds – Coolguard
by Sow Me Seeds · United States
Buy directly from Sow Me Seeds. Final price and availability confirmed at checkout.
Coolguard Lettuce is a crisp, bolt-resistant romaine-type variety ideal for warm weather growing. With upright heads, bright green leaves, and excellent holding power, it's a reliable choice for gardeners wanting extended harvest windows and great crunch.
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[split_description] Why You’ll Love It Heat Tolerant: Specifically bred to resist bolting and tip burn in warm climates. Crisp Texture: Sturdy leaves with classic romaine crunch — perfect for fresh salads and wraps. Compact Growth: Uniform heads with strong, upright growth that fit neatly in garden beds. Extended Harvest Window: Slow to bolt and holds well once mature. Plant Characteristics Height: 8–12 inches Growth Habit: Upright and compact with tightly formed heads Leaf Type: Medium green romaine-style leaves with a crisp midrib Days to Maturity: 60–65 days Hardiness: Cool-season annual Flavor and Culinary Uses Flavor: Mild, crisp, and refreshing with a clean finish Culinary Uses: Perfect for Caesar salads, lettuce wraps, sandwiches, or fresh garden salads C ompanion Planting Tips Good Companions: Carrots, radishes, onions, and beets Avoid Planting Near: Broccoli and other heavy feeders that may compete for nutrients Bonus Benefit: Ideal for succession planting — sow every 2–3 weeks for a continuous supply Common Issues and Solutions Tip Burn: Provide consistent moisture and partial shade during hot spells Slugs or Snails: Use barriers or organic bait to prevent leaf damage Loose Heads: Thin plants early and provide full sun to encourage proper head formation Seeds Per Packet 1g Approximately 240 3g Approximately 720