Skip to content
🥬 Vegetable easy

Growing Radish in Rio de Janeiro

🇧🇷 Zone 12 Planting Guide · Tropical savanna climate

USDA Zone 12 365 frost-free days 22-30 days to harvest

Quick Answer: Growing Radish in Rio de Janeiro

Yes, you can grow Radish in Rio de Janeiro, BR! Plant during Nov, Dec, Jan, Feb for best results. Rio de Janeiro is in USDA Zone 12 with a Tropical savanna climate, offering 365 frost-free days per year. The difficulty level is easy, and Radish takes 22-30 days to harvest. Radish needs full sun and regular watering.

Climate Match Analysis

Moderate Match Rio de Janeiro + Radish

Rio de Janeiro's climate requires careful timing. Summer highs (32°C) exceed Radish's maximum (24°C), so plant early or provide shade. Follow the recommended planting months for success.

Radish tolerates 2°C to 24°C
Optimal: 10°C - 18°C
Rio de Janeiro range 17°C to 32°C

Rio de Janeiro Climate Data

USDA Zone
12
Frost-Free
365days
Winter Low
17°C
Summer High
32°C
Rainfall
1069mm/yr
Climate
Aw
Tropical savanna

Radish Planting Calendar for Rio de Janeiro

Green months show the best time to plant Radish in Rio de Janeiro

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Plant Radish Not recommended

Radish Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Regular

Consistent moisture, 1-2 inches/week

📅

Days to Harvest

22-30

From planting to first harvest

📊

Difficulty

easy

Great for beginners

💡 Growing Tips for Radish

Sow directly. Don't let soil dry out or roots will be pithy. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Frost tolerance: Radish is frost tolerant — you can plant earlier in spring.

🤝

Companion Plants for Radish

Find out which plants grow best alongside Radish — and which to keep apart

🏠

Grow Radish Indoors

No garden? Learn how to grow Radish indoors with our complete guide

How to Grow Radish in Rio de Janeiro

Rio de Janeiro, BR is in USDA Hardiness Zone 12 with a Tropical savanna climate (Köppen Aw). With winter lows of 17°C and summer highs of 32°C, the growing season spans approximately 365 frost-free days. Radish is one of the easiest plants to grow in this climate.

Radish thrives in temperatures between 10°C and 18°C, requiring full sun and regular watering. In Rio de Janeiro, the best months to plant Radish are November, December, January, February. Since Radish can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 22-30 days after planting.

Rio de Janeiro receives 1069mm of annual rainfall, which provides good natural moisture for Radish. Supplement with additional watering during dry spells.

Other Plants That Grow in Rio de Janeiro

More plants you can grow alongside Radish in Rio de Janeiro

Keep Exploring

Frequently Asked Questions

Can I grow radish in Rio de Janeiro?

Yes! Radish can be successfully grown in Rio de Janeiro, BR. Rio de Janeiro is in USDA Hardiness Zone 12 with a Tropical savanna climate. The difficulty level for growing Radish here is rated "easy". The best months to plant are November, December, January, February.

When should I plant radish in Rio de Janeiro?

In Rio de Janeiro, the recommended planting months for Radish are November, December, January, February. Rio de Janeiro has 365 frost-free days per year, with winter lows of 17°C and summer highs of 32°C. Radish is frost tolerant, giving you more flexibility with planting dates.

How long does radish take to grow in Rio de Janeiro?

Radish typically takes 22-30 days from planting to harvest. In Rio de Janeiro's Tropical savanna climate with 365 frost-free days, you have plenty of time to grow Radish to maturity. Sow directly. Don't let soil dry out or roots will be pithy. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Can I grow radish indoors in Rio de Janeiro?

Radish can potentially be grown indoors in Rio de Janeiro with proper conditions. It requires full sun (6+ hours of direct light — a south-facing window or grow lights recommended). Indoor growing extends your season beyond the Nov, Dec, Jan, Feb outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant radish in Rio de Janeiro?

Plant Radish in Rio de Janeiro during November, December, January, February. These are the optimal months based on Rio de Janeiro's USDA Zone 12 climate, 365 frost-free days, and temperature range of 17°C to 32°C.

Is radish hard to grow in Rio de Janeiro?

Radish is rated "easy" to grow in Rio de Janeiro. This is a great choice for beginners — it is forgiving and adapts well to this climate. The climate match for Radish in Rio de Janeiro is Moderate.

What grows well with radish in Rio de Janeiro?

In Rio de Janeiro, you can grow many companion plants alongside Radish. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in Rio de Janeiro's Zone 12 climate.

Does radish need full sun in Rio de Janeiro?

Radish requires full sun. In Rio de Janeiro, provide at least 6 hours of direct sunlight daily. Most garden locations with southern exposure will work well.

Last updated: March 2026 · Climate data from NOAA, FAO, USDA

See an error? Report it