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🥬 Vegetable easy

Growing Radish in Chennai

🇮🇳 Zone 13 Planting Guide · Tropical savanna climate

USDA Zone 13 365 frost-free days 22-30 days to harvest

Quick Answer: Growing Radish in Chennai

Yes, you can grow Radish in Chennai, IN! Plant during Nov, Dec, Jan, Feb for best results. Chennai is in USDA Zone 13 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 Chennai + Radish

Chennai's climate requires careful timing. Summer highs (38°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
Chennai range 21°C to 38°C

Chennai Climate Data

USDA Zone
13
Frost-Free
365days
Winter Low
21°C
Summer High
38°C
Rainfall
1400mm/yr
Climate
Aw
Tropical savanna

Radish Planting Calendar for Chennai

Green months show the best time to plant Radish in Chennai

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

Radish Growing Requirements

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Sunlight

Full Sun

6+ hours direct sunlight

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Water

Regular

Consistent moisture, 1-2 inches/week

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Days to Harvest

22-30

From planting to first harvest

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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.

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Companion Plants for Radish

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

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Grow Radish Indoors

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

How to Grow Radish in Chennai

Chennai, IN is in USDA Hardiness Zone 13 with a Tropical savanna climate (Köppen Aw). With winter lows of 21°C and summer highs of 38°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 Chennai, 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.

Chennai receives 1400mm of annual rainfall, which provides good natural moisture for Radish. Supplement with additional watering during dry spells.

Other Plants That Grow in Chennai

More plants you can grow alongside Radish in Chennai

Keep Exploring

Frequently Asked Questions

Can I grow radish in Chennai?

Yes! Radish can be successfully grown in Chennai, IN. Chennai is in USDA Hardiness Zone 13 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 Chennai?

In Chennai, the recommended planting months for Radish are November, December, January, February. Chennai has 365 frost-free days per year, with winter lows of 21°C and summer highs of 38°C. Radish is frost tolerant, giving you more flexibility with planting dates.

How long does radish take to grow in Chennai?

Radish typically takes 22-30 days from planting to harvest. In Chennai'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 Chennai?

Radish can potentially be grown indoors in Chennai 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 Chennai?

Plant Radish in Chennai during November, December, January, February. These are the optimal months based on Chennai's USDA Zone 13 climate, 365 frost-free days, and temperature range of 21°C to 38°C.

Is radish hard to grow in Chennai?

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

What grows well with radish in Chennai?

In Chennai, 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 Chennai's Zone 13 climate.

Does radish need full sun in Chennai?

Radish requires full sun. In Chennai, provide at least 6 hours of direct sunlight daily. During peak summer heat, some afternoon shade can help prevent heat stress.

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

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