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Ruby Streaks — Lettuce | DarkGrow Seed Bank

Name: Ruby Streaks
Brand: DarkGrow Seed Bank

21days to harvest

7-10 daysdays to germinate

Z8–11USDA zones

Easydifficulty

Heirloom

Sowing

Direct sow after last frost, or start indoors 6-8 weeks before last frost for transplanting

Cultivation

Sun: Full sun to partial shade (4-6+ hours)
Water: High — consistent moisture needed
Soil: Well-drained loam, slightly acidic to neutral
Spacing: 12-18 inches
Height: 12-18 inches
Season: Warm season annual

Appearance & flavour

Colour: Dark green with red veins to dark maroon
Shape: Deeply incised, finely lobed leaves
Flavour: Mild flavor with a slightly pungent undertone, tender and delicate.

In the kitchen

Fresh salads, lettuce mixes, garnish, salad bowls

Pests, disease & resistance

Pests: Aphids, slugs, snails, flea beetles
Diseases: Lettuce mosaic virus, powdery mildew, downy mildew

Planting calendar by USDA zone

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

Companion planting

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

ChivesRepels aphids and improves lettuce flavor while providing natural pest deterrent

CarrotsLoosens soil for lettuce roots and doesn't compete for surface nutrients

RadishesActs as trap crop for flea beetles and breaks up soil for lettuce growth

MarigoldsDeters nematodes and aphids while attracting beneficial predatory insects

SpinachSimilar growing requirements and can be succession planted together

GarlicNatural fungicide properties help prevent lettuce diseases like downy mildew

NasturtiumsActs as trap crop for aphids and cucumber beetles, protecting lettuce

DillAttracts beneficial insects like ladybugs and lacewings that control lettuce pests

Avoid

BroccoliCompetes heavily for nitrogen and can shade out lettuce with large leaves

SunflowersAllelopathic compounds inhibit lettuce germination and growth

ParsleyCan attract carrot flies which may damage lettuce roots in close proximity

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.

Ruby Streaks

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 Ruby Streaks?

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