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Silvia — Brassicas | DarkGrow Seed Bank

Name: Silvia
Brand: DarkGrow Seed Bank

103days to harvest

7-10 daysdays to germinate

Z6–9USDA zones

Easydifficulty

F1 hybrid

Sowing

Start indoors 4-6 weeks before transplanting, or direct sow in mid-summer for fall harvest

Cultivation

Sun: Full sun to partial shade (4-6+ hours)
Water: Regular, consistent moisture; approximately 1-1.5 inches per week
Soil: Well-drained, fertile loam, slightly acidic to neutral (pH 6.0-7.5)
Spacing: 18-24 inches
Height: 10-24 inches
Season: Warm season annual

Appearance & flavour

Colour: Green
Shape: Round, dense heads
Flavour: Mild, sweet Brussels sprout flavor with good tenderness and minimal bitterness when properly grown and harvested.

In the kitchen

Roasting, steaming, sautéing, braising, fresh salads, side dishes

Pests, disease & resistance

Pests: Cabbage moth, cabbage looper, flea beetle, aphid
Diseases: Black rot, clubroot, powdery mildew
Resistance: Black Rot (Intermediate); Fusarium Yellows (High)

Planting calendar by USDA zone

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

Companion planting

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

DillAttracts beneficial insects like parasitic wasps that control cabbage worms

OnionsStrong scent deters cabbage moths, aphids, and flea beetles

NasturtiumsActs as trap crop for aphids and flea beetles, draws pests away from brassicas

MarigoldsRepels cabbage moths and other harmful insects with strong fragrance

CarrotsRoot depth complements shallow brassica roots, doesn't compete for nutrients

LettuceGrows well in partial shade of brassicas, efficient use of garden space

ChamomileImproves soil health and may enhance flavor of nearby brassicas

GarlicNatural fungicide properties help prevent clubroot and other soil diseases

Avoid

TomatoesBoth are heavy feeders competing for same nutrients, tomatoes may stunt brassica growth

StrawberriesBrassicas can inhibit strawberry growth and fruit production

Pole beansCan overshadow brassicas and compete for nitrogen in soil

Nutrition (per 100 g)

Calories (per 100 g): 31
Protein (g): 2.57
Fat (g): 0.34
Carbohydrate (g): 6.27
Fibre (g): 2.4
Vitamin A (µg): 8
Vitamin C (mg): 91.3
Vitamin E (mg): 0.15
Vitamin K (µg): 102
Vitamin B6 (mg): 0.191
Folate (µg): 65
Calcium (mg): 46
Iron (mg): 0.69
Magnesium (mg): 21
Phosphorus (mg): 67
Potassium (mg): 303
Zinc (mg): 0.42
Selenium (µg): 1.6

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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 brassicas growing guide.

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

Silvia

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 Silvia?

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