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Sylvetta — Lettuce | DarkGrow Seed Bank

Name: Sylvetta
Brand: DarkGrow Seed Bank

35days to harvest

7-10 daysdays to germinate

Z5–9USDA zones

Easydifficulty

Heirloom

Sowing

Direct sow ¼ inch deep after last frost; succession sow every 2-3 weeks for continuous harvest; fall sowing 8-10 weeks before first frost for best flavor

Cultivation

Sun: Full sun to partial shade (4-6+ hours)
Water: Regular, consistent moisture; approximately 1-1.5 inches per week
Soil: Well-draining loam with organic matter, pH 6.0-7.0
Spacing: 6-8 inches
Height: 6-24 inches
Season: Warm season annual

Appearance & flavour

Colour: Deep green
Shape: Deeply lobed, feathery leaves
Flavour: Intensely peppery with complex spicy-nutty undertones, more sophisticated and bold than common cultivated arugula; flowers add complementary peppery-nutty notes

In the kitchen

Salad mixes, garnishes, pesto, soups, risotto, vegetable stir-fries, edible flowers for plating

Pests, disease & resistance

Pests: Flea beetles, cabbage worms, slugs (generally resistant compared to cultivated lettuces)
Diseases: Downy mildew, bacterial leaf spot (generally disease resistant compared to cultivated lettuces)

Planting calendar by USDA zone

Zone	Start indoors	Transplant	Direct sow	Harvest
1	—	—	June – July	July – September
2	—	—	May – July	June – September
3	—	—	May – June	June – October
4	—	—	April – June	May – October
5	—	—	April – May	May – November
6	—	—	April – May	May – November
7	—	—	March – May	April – November
8	—	—	March – April	April – December
9	—	—	February – March	March – 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 other soft-bodied insects that commonly attack lettuce

MarigoldsDeters nematodes and aphids while attracting beneficial predatory insects

CarrotsDeep roots don't compete with shallow lettuce roots, and carrots help break up soil

RadishesFast-growing companion that helps break up soil and can be harvested before lettuce needs space

GarlicNatural pest deterrent that repels aphids, slugs, and other lettuce pests

NasturtiumsActs as trap crop for aphids and cucumber beetles while attracting beneficial insects

DillAttracts beneficial insects like ladybugs and lacewings that prey on lettuce pests

SpinachSimilar growing requirements and harvest timing, efficient use of garden space

Avoid

SunflowersLarge size creates excessive shade and competes heavily for water and nutrients

BroccoliHeavy feeder that competes for nutrients and can overshadow delicate lettuce plants

FennelReleases allelopathic compounds that inhibit growth of lettuce and most other vegetables

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.

Sylvetta

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 Sylvetta?

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