Heatwave Blend Lettuce Seeds

  • Heatwave Blend Lettuce vegetable seeds for heat-tolerant greens that stay crisp and fresh during hot summer garden months.
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Heatwave Blend Lettuce Seeds

Heatwave Blend Lettuce Seeds

$4.95 USD
$4.95 USD
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Packet Size: 1,000 Seeds

Heatwave Blend Lettuce delivers a colorful mix of heat-tolerant varieties selected to stay sweet and productive through warmer weather. This blend includes looseleaf, Bibb, and crisp selections that offer a range of textures and colors for summer salads. Each variety in the mix is chosen for its slow-bolting qualities, helping extend your harvest window even when temperatures rise. Great for gardeners who want dependable lettuce performance throughout the hotter months.

We ship to the Continental U.S. and Alaska only. We cannot ship to Hawaii, overseas U.S. military bases, or U.S. territories.

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Growing Information

Planting

  • Sow seeds directly outdoors as soon as soil can be worked and continue planting every 2–3 weeks for a steady harvest.
  • Plant seeds 1/8 inch deep in loose, well-drained soil enriched with organic matter.
  • Thin seedlings to 6–10 inches apart to allow proper leaf development across the various lettuce types.
  • Heatwave Blend reaches mature heights of roughly 6–10 inches with a similar spread depending on the variety.
  • For earlier yields, start seeds indoors and transplant when plants have several true leaves and outdoor conditions have stabilized.

Maintenance

  • Keep soil consistently moist to support leafy growth and prevent bitterness in hotter weather.
  • Provide afternoon shade during extreme heat to help slow bolting.
  • Space plants to allow good air circulation, reducing the chance of mildew in humid conditions.
  • Mulch around plants to maintain soil moisture and moderate soil temperature.
  • Fertilize lightly with a balanced fertilizer if growth slows mid-season.

Harvest & Storage

  • Harvest outer leaves regularly once plants reach usable size to encourage continuous growth.
  • Expect maturity in about 45–60 days depending on the specific variety within the blend.
  • Cut-and-come-again harvesting helps maintain tenderness and delays bolting during warm periods.
  • Store freshly harvested leaves unwashed in a loose plastic bag in the refrigerator to preserve crispness.
  • Use within a week for best quality and flavor.