Grown Black Spanish Round Radish?

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Black Spanish Round Radish — Root vegetables

55-65days to harvest

4-10days to germinate

Z2–11USDA zones

Easydifficulty

HeirloomContainer friendly

Sowing

Direct sow seeds 1/2 inch deep in late summer for fall harvest, 10-12 weeks before hard frost.

Cultivation

Sun: Full sun to partial shade
Water: 1 inch per week, consistent moisture
Soil: Well-drained, loose soil with good organic matter
Soil pH: 6.0-7.0
Spacing: 4-6 inches apart, rows 12 inches apart
Height: 0-3 feet
Season: Cool season, fall planting preferred

Appearance & flavour

Colour: Black exterior skin, pure white flesh
Size: 3-4 inches diameter, round
Shape: Perfect globe shape, turnip-like
Flavour: Very pungent and spicy, much hotter than spring radishes, with a sharp bite

In the kitchen

Excellent for pickling, winter soups, stir-fries, eaten raw in thin slices. Traditional in Spanish and German cuisine.

Pests, disease & resistance

Pests: Flea beetles, cabbage root maggot, aphids
Diseases: Clubroot, black rot, white rust
Resistance: Good resistance to clubroot, moderate resistance to black rot

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	June – 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.

CarrotsRadishes break up soil for carrots and mature quickly, allowing carrots more space

LettuceRadishes mature quickly and don't compete for space with slower-growing lettuce

SpinachCompatible growing requirements and radishes help loosen soil for spinach roots

ChivesRepel flea beetles and aphids that commonly attack radishes

NasturtiumsAct as trap crop for flea beetles and aphids, protecting radishes

MarigoldsRepel root maggots and other soil pests that damage radish roots

CucumberRadishes repel cucumber beetles while cucumbers provide shade for radishes

PeasFix nitrogen in soil and don't compete with radishes for root space

Avoid

BrassicasSame family plants attract similar pests like flea beetles and clubroot disease

HyssopInhibits growth of radishes and other root vegetables through allelopathic compounds

TurnipsCompete for same nutrients and space, both being root vegetables in brassica family

Nutrition (per 100 g)

Calories (per 100 g): 16
Protein (g): 0.68
Fat (g): 0.1
Carbohydrate (g): 3.4
Fibre (g): 1.6
Sugars (g): 1.86
Vitamin A (µg): 0
Vitamin C (mg): 14.8
Vitamin E (mg): 0
Vitamin K (µg): 1.3
Vitamin B6 (mg): 0.071
Folate (µg): 25
Calcium (mg): 25
Iron (mg): 0.34
Magnesium (mg): 10
Phosphorus (mg): 20
Potassium (mg): 233
Zinc (mg): 0.28
Selenium (µg): 0.6

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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 root vegetables 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 Black Spanish Round Radish?

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