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Lettuce, Cos Lettuce 'Parris Island'

Lactuca sativa

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Lactuca (lak-TOO-kuh) (Info)
Species: sativa (sa-TEE-vuh) (Info)
Cultivar: Parris Island
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6-12 in. (15-30 cm)

12-18 in. (30-45 cm)


9-12 in. (22-30 cm)

12-15 in. (30-38 cm)

Sun Exposure:

Full Sun

Days to Maturity:

Mid (69-80 days)


Grown for foliage

Seed Type:


Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Propagation Methods:

From seed; sow indoors before last frost

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us


This plant has been said to grow in the following regions:

Augusta, Georgia

Saint Simons Island, Georgia

Long Beach, Mississippi

Troy, New York

Petersburg, North Dakota

Vinton, Ohio

Jonesville, South Carolina

Fort Worth, Texas

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Gardeners' Notes:


On Mar 19, 2010, DAKOTA31400 from Petersburg, ND (Zone 3a) wrote:

Fail Proof. Grows from South Florida to North Dakota without a hitch. Slow starter at seedling stage. Must keep the soil moist to wet and grow before temperatures reach 80 degrees. Stores up to 3 months under prooper rifridgeration.
Will take temperatures down to 30 degrees for short periods.

Have tried just about every Cos variety out there. I don't even bother trying the alternates anymore.


On Apr 7, 2005, Farmerdill from Augusta, GA (Zone 8a) wrote:

A 75 day green cos with medium size head.


On Oct 28, 2004, smiln32 from Oklahoma City, OK (Zone 7a) wrote:

This variety is impractical as a spring crop where there are less than 60 days after the last hard frost before hot weather arrives. The best thing is to sow seeds in early fall. Thin plants to stand 8 to 12 inches apart.

If starting in fall, you can start seeds inside 2 to 3 weeks before the last frost free date, protecting them from hard frosts. Seeds will germinate better if they are planted in late summer and shaded to keep the soil cool and thus reduce evaporation.

To harvest lettuce, you can take the whole plant or snap off the outer leaves.