Grown Parris Island Cos?

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Parris Island Cos — Lettuce | DarkGrow Seed Bank

Name: Parris Island Cos
Brand: DarkGrow Seed Bank

68-75days to harvest

7-12days to germinate

Z2–11USDA zones

Easydifficulty

HeirloomContainer friendly

Sowing

Direct sow 2-4 weeks before last frost. Can succession plant through summer in most climates. Start indoors in extreme heat.

Cultivation

Sun: Full sun to partial shade (4-6+ hours)
Water: 1-1.25 inches per week, deep watering
Soil: Rich, well-drained soil with good organic matter
Soil pH: 6.0-7.0
Spacing: 8-12 inches
Height: 6-12 inches
Season: Cool season (heat tolerant)

Appearance & flavour

Colour: Dark green outer leaves with creamy yellow heart
Size: 10-12 inch tall heads, 1-2 lbs
Shape: Upright, elongated heads with thick central ribs
Flavour: Crisp, mildly sweet with excellent crunch and no bitterness

In the kitchen

Caesar salads, grilled romaine, wraps, sandwiches. Classic restaurant-quality romaine.

Pests, disease & resistance

Pests: Aphids, thrips, cabbage loopers, leaf miners
Diseases: Downy mildew, lettuce drop, bacterial leaf spot
Resistance: Excellent heat tolerance and resistance to bolting and tipburn

Planting calendar by USDA zone

Zone	Start indoors	Transplant	Direct sow	Harvest
1	—	—	June – July	August – September
2	—	—	May – July	July – September
3	—	—	May – June	July – October
4	—	—	April – June	July – October
5	—	—	April – May	June – November
6	—	—	April – May	June – November
7	—	—	March – May	May – November
8	—	—	March – April	May – December
9	—	—	February – March	April – December
10	—	—	January – March	March – December
11	—	—	January – February	February – December
12	—	—	January – February	February – December
13	—	—	January – February	February – December

Companion planting

8 beneficial pairings indexed for this variety, 3 to avoid.

ChivesRepels aphids and improves lettuce flavor while providing natural pest deterrent

CarrotsDeep roots don't compete with shallow lettuce roots, maximizes garden space efficiently

RadishesFast-growing, helps break up soil and can be harvested before lettuce needs full space

MarigoldsRepel nematodes, aphids, and other harmful insects while attracting beneficial predators

NasturtiumsAct as trap crop for aphids and cucumber beetles, drawing pests away from lettuce

GarlicNatural fungicide properties help prevent damping-off and other soil-borne diseases

SpinachSimilar growing requirements and can provide mutual shading in hot weather

DillAttracts beneficial insects like ladybugs and lacewings that control aphids

Avoid

BroccoliHeavy feeder that competes for nitrogen and can shade out lettuce with large leaves

SunflowersAllelopathic compounds inhibit lettuce germination and growth, plus excessive shading

CeleryCompetes heavily for water and nutrients, similar root depth creates direct competition

Nutrition (per 100 g)

Protein (g): 0.742
Fat (g): 0.0738
Carbohydrate (g): 3.37
Vitamin K (µg): 20.5
Vitamin B6 (mg): 0.0401
Calcium (mg): 14.2
Iron (mg): 0.0332
Magnesium (mg): 6.31
Phosphorus (mg): 19.2
Potassium (mg): 139
Zinc (mg): 0.173

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Where to buy seed and equipment

Some links are affiliate links. If you buy through them we may earn a commission at no extra cost to you.

Growing it? There is a full cultivation guide at the lettuce growing guide.

Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.

Sowing

Cultivation

Appearance & flavour

In the kitchen

Pests, disease & resistance

Planting calendar by USDA zone

Companion planting

Avoid

Nutrition (per 100 g)

Where to buy seed and equipment

Grown Parris Island Cos?

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