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🥬 Vegetable easy

Growing Radish in Riga

🇱🇻 Zone 4 Planting Guide · Warm-summer humid continental climate

USDA Zone 4 180 frost-free days 22-30 days to harvest

Quick Answer: Growing Radish in Riga

Yes, you can grow Radish in Riga, LV! Plant during Mar, Apr, May, Aug, Sep for best results. Riga is in USDA Zone 4 with a Warm-summer humid continental climate, offering 180 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 Riga + Radish

Riga's climate requires careful timing. Winter lows (-7°C) drop below Radish's minimum (2°C), so avoid cold months. Follow the recommended planting months for success.

Radish tolerates 2°C to 24°C
Optimal: 10°C - 18°C
Riga range -7°C to 22°C

Riga Climate Data

USDA Zone
4
Frost-Free
180days
Winter Low
-7°C
Summer High
22°C
Rainfall
641mm/yr
Climate
Dfb
Warm-summer humid continental

Radish Planting Calendar for Riga

Green months show the best time to plant Radish in Riga

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 Riga

Riga, LV is in USDA Hardiness Zone 4 with a Warm-summer humid continental climate (Köppen Dfb). With winter lows of -7°C and summer highs of 22°C, the growing season spans approximately 180 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 Riga, the best months to plant Radish are March, April, May, 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.

With 641mm of annual rainfall, Riga provides moderate natural moisture. You'll likely need to supplement with regular watering, especially during the growing season.

Other Plants That Grow in Riga

More plants you can grow alongside Radish in Riga

Keep Exploring

Frequently Asked Questions

Can I grow radish in Riga?

Yes! Radish can be successfully grown in Riga, LV. Riga is in USDA Hardiness Zone 4 with a Warm-summer humid continental climate. The difficulty level for growing Radish here is rated "easy". The best months to plant are March, April, May, August, September.

When should I plant radish in Riga?

In Riga, the recommended planting months for Radish are March, April, May, August, September. Riga has 180 frost-free days per year, with winter lows of -7°C and summer highs of 22°C. Radish is frost tolerant, giving you more flexibility with planting dates.

How long does radish take to grow in Riga?

Radish typically takes 22-30 days from planting to harvest. In Riga's Warm-summer humid continental climate with 180 frost-free days, you have enough time with good planning 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 Riga?

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

What month do I plant radish in Riga?

Plant Radish in Riga during March, April, May, August, September. These are the optimal months based on Riga's USDA Zone 4 climate, 180 frost-free days, and temperature range of -7°C to 22°C.

Is radish hard to grow in Riga?

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

What grows well with radish in Riga?

In Riga, 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 Riga's Zone 4 climate.

Does radish need full sun in Riga?

Radish requires full sun. In Riga, 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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