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🥬 Vegetable easy

Growing Radish in Chattanooga

🇺🇸 Zone 6 Planting Guide · Humid subtropical climate

USDA Zone 6 220 frost-free days 22-30 days to harvest

Quick Answer: Growing Radish in Chattanooga

Yes, you can grow Radish in Chattanooga, US! Plant during Feb, Mar, Apr, Aug, Sep for best results. Chattanooga is in USDA Zone 6 with a Humid subtropical climate, offering 220 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 Chattanooga + Radish

Chattanooga's climate requires careful timing. Winter lows (-1°C) drop below Radish's minimum (2°C), so avoid cold months. 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
Chattanooga range -1°C to 32°C

Chattanooga Climate Data

USDA Zone
6
Frost-Free
220days
Winter Low
-1°C
Summer High
32°C
Rainfall
1378mm/yr
Climate
Cfa
Humid subtropical

Radish Planting Calendar for Chattanooga

Green months show the best time to plant Radish in Chattanooga

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 Chattanooga

Chattanooga, US is in USDA Hardiness Zone 6 with a Humid subtropical climate (Köppen Cfa). With winter lows of -1°C and summer highs of 32°C, the growing season spans approximately 220 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 Chattanooga, the best months to plant Radish are February, March, April, August, September. 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.

Chattanooga receives 1378mm of annual rainfall, which provides good natural moisture for Radish. Supplement with additional watering during dry spells.

Other Plants That Grow in Chattanooga

More plants you can grow alongside Radish in Chattanooga

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Frequently Asked Questions

Can I grow radish in Chattanooga?

Yes! Radish can be successfully grown in Chattanooga, US. Chattanooga is in USDA Hardiness Zone 6 with a Humid subtropical climate. The difficulty level for growing Radish here is rated "easy". The best months to plant are February, March, April, August, September.

When should I plant radish in Chattanooga?

In Chattanooga, the recommended planting months for Radish are February, March, April, August, September. Chattanooga has 220 frost-free days per year, with winter lows of -1°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 Chattanooga?

Radish typically takes 22-30 days from planting to harvest. In Chattanooga's Humid subtropical climate with 220 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 Chattanooga?

Radish can potentially be grown indoors in Chattanooga 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 Feb, Mar, Apr, Aug, Sep outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant radish in Chattanooga?

Plant Radish in Chattanooga during February, March, April, August, September. These are the optimal months based on Chattanooga's USDA Zone 6 climate, 220 frost-free days, and temperature range of -1°C to 32°C.

Is radish hard to grow in Chattanooga?

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

What grows well with radish in Chattanooga?

In Chattanooga, 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 Chattanooga's Zone 6 climate.

Does radish need full sun in Chattanooga?

Radish requires full sun. In Chattanooga, 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

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