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🥬 Vegetable hard

Growing Corn in Riga

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

USDA Zone 4 180 frost-free days 60-100 days to harvest

Quick Answer: Growing Corn in Riga

Yes, you can grow Corn in Riga, LV! Plant during May, Jun, Jul, Aug 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 hard, and Corn takes 60-100 days to harvest. Corn needs full sun and regular watering.

Climate Match Analysis

Moderate Match Riga + Corn

Riga's climate requires careful timing. Winter lows (-7°C) drop below Corn's minimum (10°C), so avoid cold months. Follow the recommended planting months for success.

Corn tolerates 10°C to 35°C
Optimal: 18°C - 30°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

Corn Planting Calendar for Riga

Green months show the best time to plant Corn in Riga

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

Corn 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

60-100

From planting to first harvest

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Difficulty

hard

For experienced growers

💡 Growing Tips for Corn

Minimum 4x4 block for pollination. Heavy feeder -- needs nitrogen-rich soil. Wait until soil warms to at least 18°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Frost tolerance: Corn is NOT frost tolerant — wait until after the last frost in Riga.

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Companion Plants for Corn

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

How to Grow Corn 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. Corn requires more experience to grow successfully in this climate.

Corn thrives in temperatures between 18°C and 30°C, requiring full sun and regular watering. In Riga, the best months to plant Corn are May, June, July, August. Corn is not frost tolerant, so it's important to wait until after the last spring frost before transplanting outdoors. Expect to harvest in approximately 60-100 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 Corn in Riga

Keep Exploring

Frequently Asked Questions

Can I grow corn in Riga?

Yes! Corn 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 Corn here is rated "hard". The best months to plant are May, June, July, August.

When should I plant corn in Riga?

In Riga, the recommended planting months for Corn are May, June, July, August. Riga has 180 frost-free days per year, with winter lows of -7°C and summer highs of 22°C. Since Corn is not frost tolerant, make sure to plant after the last frost date.

How long does corn take to grow in Riga?

Corn typically takes 60-100 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 Corn to maturity. Minimum 4x4 block for pollination. Heavy feeder -- needs nitrogen-rich soil. Wait until soil warms to at least 18°C before transplanting outdoors — cold soil stunts growth and can invite root rot. 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 corn indoors in Riga?

Corn 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 May, Jun, Jul, Aug outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant corn in Riga?

Plant Corn in Riga during May, June, July, August. 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 corn hard to grow in Riga?

Corn is rated "hard" to grow in Riga. This is challenging in this climate. Experienced growers will have the best success with careful attention to temperature and moisture. The climate match for Corn in Riga is Moderate.

What grows well with corn in Riga?

In Riga, you can grow many companion plants alongside Corn. 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 corn need full sun in Riga?

Corn 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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