How to Grow Radish

Beginner-Friendly

Raphanus sativus

One of the fastest crops from seed to harvest. Great for interplanting and marking slow-germinating rows.

Last updated: June 2026

Days to Maturity
22–30 days
typical
Per Square Foot
16
Plant Spacing
5 cm / 2"
Sun
6+ hours
Water
1.0" / 25 mm
Fertilization
light feeder

Growing Notes

Direct sow as soon as soil can be worked. Succession sow every 10 days. Harvest promptly to avoid pithiness.

Varieties & Cultivars

9 cultivars in our database. Click any card to see growing details.

Golden globe-shaped mini radish

(1)
Dragon's Egg
30–35 days Open-Pollinated

crunchy texture; AAS winner 2012; good for microgreens

Height
2–4" (5–10 cm)
Yield / plant
—
Avg fruit
0.4 oz (10 g)
Support
none
Harvest
once
USDA Zones
3–10
Seed saving
easy
Seed viability
5 years

Spring

(3)
Cherry Belle
22–28 days Open-Pollinated

mild crisp flesh

Height
6–8" (15–20 cm)
Yield / plant
—
Avg fruit
0.4 oz (12 g)
Support
none
Harvest
once
USDA Zones
2–10
Seed saving
easy
Seed viability
5 years
Easter Egg
25–30 days Open-Pollinated

fun for kids

Height
6–8" (15–20 cm)
Yield / plant
—
Avg fruit
0.5 oz (15 g)
Support
none
Harvest
once
USDA Zones
2–10
Seed saving
easy
Seed viability
5 years
French Breakfast
21–28 days Open-Pollinated

mild spicy flavour

Height
6–8" (15–20 cm)
Yield / plant
—
Avg fruit
0.6 oz (18 g)
Support
none
Harvest
once
USDA Zones
2–10
Seed saving
easy
Seed viability
5 years

White icicle-shaped radish

(1)
Maramous
35–45 days Open-Pollinated

very mild flavour; non-pungent; good for salads

Height
6–12" (15–30 cm)
Yield / plant
—
Avg fruit
1.1 oz (30 g)
Support
none
Harvest
once
USDA Zones
3–10
Seed saving
easy
Seed viability
5 years

White interior with pink outer layer

(1)
Pink Blossom
30–40 days Open-Pollinated

mild crisp; visually attractive; good for fresh eating

Height
2–6" (5–15 cm)
Yield / plant
—
Avg fruit
0.5 oz (15 g)
Support
none
Harvest
once
USDA Zones
3–10
Seed saving
easy
Seed viability
5 years

Winter

(3)
Black Spanish Round
55–70 days Open-Pollinated

pungent white flesh; keeps well for months

Height
6–10" (15–25 cm)
Yield / plant
—
Avg fruit
6.0 oz (170 g)
Support
none
Harvest
once
USDA Zones
2–10
Seed saving
easy
Seed viability
5 years
Daikon
50–70 days Open-Pollinated

mild sweet flavour; good fresh or pickled

Height
6–12" (15–30 cm)
Yield / plant
—
Avg fruit
15.9 oz (450 g)
Support
none
Harvest
once
USDA Zones
2–10
Seed saving
easy
Seed viability
5 years
Watermelon
50–60 days Open-Pollinated

sweet and mild; fall crop

Height
6–12" (15–30 cm)
Yield / plant
—
Avg fruit
3.0 oz (85 g)
Support
none
Harvest
once
USDA Zones
2–10
Seed saving
easy
Seed viability
5 years

Companion Planting

What to grow alongside radish, and what to keep apart.

Plant With

Cucumber : Radishes deter cucumber beetles
Beet : Radishes loosen topsoil benefiting deeper beet roots
Carrot : Radishes mark slow-germinating carrot rows and break soil crust
Beans : Radishes mature quickly before beans need full space
Melon : Radishes deter cucumber beetles from melon vines
Spinach : Radishes break soil crust for spinach seedlings
Potato : Radishes deter flea beetles from potatoes
Sweet Potato : Radishes loosen soil and mature before sweet potato vines need space
Lettuce : Radishes loosen soil for lettuce roots; fast harvest frees space
Squash : Radishes repel squash vine borers
Zucchini : Radishes repel squash vine borers from zucchini
Swiss Chard : Radishes loosen soil for chard roots
Pumpkin : Radishes repel squash vine borers from pumpkin vines
Turnip : Both fast root crops with complementary harvest windows
Peas : Radishes mature before peas need the space
Watermelon : Radishes deter cucumber beetles from watermelon vines

Keep Apart

Square Foot Spacing

16 per sq ft

3" apart (4×4 grid)

View full spacing chart →

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