Lettuce Seeds - Romaine / COS - Dark Green Cos


50-60 days. Dark Green COS Romaine Lettuce Seeds. Lactuca sativa. Non-GMO. Open Pollinated. An award-winning and absolutely hardy cultivar of butter head, Buttercrunch is tender, delicious, and looks as good in the garden as in the salad bowl. First introduced by Cornell University in the 1960s, Buttercrunch debuted as the 1963 All-America Selections vegetable winner for its tolerance to stress, poor soils, and bolting from summer heat. ~25,000 seeds per oz.

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Growing Non-GMO Buttercrunch Butterhead Lettuce Vegetable Seeds

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  • Latin Name: Lactuca sativa
  • Lettuce Type: Romaine
  • Hardiness Zone: Annual 2-10
  • Days to Maturity: 45-60
  • Days to Germination: 3-10
  • Seeding Depth: 1/4"
  • Plant Spacing: 9-12"
  • Row Spacing: 12-15"
  • Plant Height: 6-12"
  • Growth Habit: Leafy mound
  • Soil Preference: Nitrogen-rich, composted, well-drained
  • Temperature Preference: 55-70 °F
  • Light Preference: Full sun
  • Pests and Diseases: Susceptible to mildew, rot, and leaf spotting from soils if not properly drained and ventilated. Watch for aphids, whiteflies, and leafminers.
  • Buttercrunch Lettuce Color: Smooth and bright green butterhead-style leaves
  • Buttercrunch Lettuce Flavor: Soft, creamy, and mild

How to Grow Buttercrunch Butterhead Lettuce from Seed

Buttercrunch is a cool hardy favorite performing just as vigorously when sown direct as when transplanted. For earliest starts, begin indoors 4-6 weeks before final frost. Plant 2-3 seeds 1/4" deep and 2" apart in Organically rich, well-drained soil in full sun to partial shade. Germinates in 7-10 days, thinning back to 1 plant every 4 in the garden. Harvest large outer leaves while allowing smaller leaves to continue to mature.

Make sure to allow enough space between seeds for the lettuce to grow, as overcrowding can cause the lettuce to have a bitter taste. Firm the soil lightly. While growing, keep the soil well watered. Harvest between 60 and 70 days after planting, and before flowers appear, to ensure the lettuce doesn't become too mature.

Buttercrunch Lettuce in the Vegetable Garden

Lettuce is one of the most versatile seeds in the world as it is a choice variety for sprouting, microgreens, hydroponics, aquaponics, and indoor container gardening. Quick to maturity and easy to grow anywhere, countless varieties of lettuce have been specifically cultivated to thrive from cold northern gardens all the way down to the desolate Arizona heat.

Buttercrunch Lettuce is an annual, and it grows best in cooler areas. Although it is very hardy, it needs extra shade, or the leaves need to be misted in the hottest climates with the most sun. It warm climates it can be planted in the late summer for spring harvest. This lettuce is great for salad, and the leaves can be picked when small as baby greens or later in the season for larger, firmer leaves.

Whether romaine, iceberg, butter, or leaf head, lettuce is available in savory redleaf or classic tender greenleaf.

Harvesting Buttercrunch Lettuce

Most varieties of lettuce can be harvested 45-60 days after sowing or once the younger outer leaves have reached 4-5" long as a "“cut and come again" crop. Harvest leaves when young and tender for best flavor since leaves bitter with maturity. Heads may be harvested whole, roots and all, or just be cut at the base while leaving behind an inch to the rooted stem.

Garden fresh lettuce stores well cold in a plastic bag for 7-10 days. Do not store near apples or bananas.

About Buttercrunch Butterhead Lettuce Seeds

Buttercrunch was developed by George Raleigh of Cornell University.

Buttercrunch produces a nice head of mild buttery flavored 6-8" in height, thick, juicy, slightly crumpled dark green leaves and white-yellow heart.

Very long season. Performs well in spring and fall.

Don't forget the heart, which is some folk's favorite! Buttercrunch is slow to bolt and is heat tolerant.

Buttercrunch Lettuce (Lactuca sativa), is the most popular variety of butterhead Lettuce. It gets its name from its soft buttery texture. It grows fast, and can be harvested over and over again, when leaves are picked as needed.

These non-GMO Buttercrunch seeds grow into vibrant, green heads of lettuce that are ready to harvest in 60 to 70 days. The Buttercrunch lettuce can be grown in most zones, including colder zones. The leaves of the Buttercrunch have a mildly sweet, buttery flavor.

Buttercrunch Lettuce Seeds Per Package:

  • 2.5 g - Packet - Approx 2,000 Seeds
  • 1 oz- Wholesale - Approx 25,000 Seeds
  • 4 oz - Wholesale - Approx 100,000 Seeds
  • 1 lb - Wholesale - Approx 400,000 Seeds
  • 5 lb - Bulk - Approx 2,000,000 Seeds
  • 25 lb - Bulk - Approx 10,000,000 Seeds

Non-GMO Buttercrunch Butterhead lettuce seeds are available for Fast Free Shipping on orders over $75.

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