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🥬 Vegetable medium

Growing Radicchio in Hamburg

🇩🇪 Zone 5 Planting Guide · Oceanic / Marine west coast climate

USDA Zone 5 210 frost-free days 60-80 days to harvest

Quick Answer: Growing Radicchio in Hamburg

Yes, you can grow Radicchio in Hamburg, DE! Plant during Feb, Mar, Apr, Aug, Sep for best results. Hamburg is in USDA Zone 5 with a Oceanic / Marine west coast climate, offering 210 frost-free days per year. The difficulty level is medium, and Radicchio takes 60-80 days to harvest. Radicchio needs full sun to partial shade and regular watering.

Climate Match Analysis

Good Match Hamburg + Radicchio

Hamburg's temperatures (-2°C to 23°C) are within the tolerable range for Radicchio (-5°C to 24°C), though not always in the optimal zone (10°C to 18°C). Plant during recommended months for best results.

Radicchio tolerates -5°C to 24°C
Optimal: 10°C - 18°C
Hamburg range -2°C to 23°C

Hamburg Climate Data

USDA Zone
5
Frost-Free
210days
Winter Low
-2°C
Summer High
23°C
Rainfall
774mm/yr
Climate
Cfb
Oceanic / Marine west coast

Radicchio Planting Calendar for Hamburg

Green months show the best time to plant Radicchio in Hamburg

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

Radicchio Growing Requirements

☀️

Sunlight

Full Sun to Partial Shade

2-4 hours direct sunlight

💧

Water

Regular

Consistent moisture, 1-2 inches/week

📅

Days to Harvest

60-80

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Radicchio

Fall-planted heads are best. Cold brings out red color. 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: Radicchio is frost tolerant — you can plant earlier in spring.

How to Grow Radicchio in Hamburg

Hamburg, DE is in USDA Hardiness Zone 5 with a Oceanic / Marine west coast climate (Köppen Cfb). With winter lows of -2°C and summer highs of 23°C, the growing season spans approximately 210 frost-free days. Radicchio grows well with some gardening knowledge in this climate.

Radicchio thrives in temperatures between 10°C and 18°C, requiring full sun to partial shade and regular watering. In Hamburg, the best months to plant Radicchio are February, March, April, August, September. Since Radicchio can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 60-80 days after planting.

With 774mm of annual rainfall, Hamburg provides moderate natural moisture. You'll likely need to supplement with regular watering, especially during the growing season.

Other Plants That Grow in Hamburg

More plants you can grow alongside Radicchio in Hamburg

Keep Exploring

Frequently Asked Questions

Can I grow radicchio in Hamburg?

Yes! Radicchio can be successfully grown in Hamburg, DE. Hamburg is in USDA Hardiness Zone 5 with a Oceanic / Marine west coast climate. The difficulty level for growing Radicchio here is rated "medium". The best months to plant are February, March, April, August, September.

When should I plant radicchio in Hamburg?

In Hamburg, the recommended planting months for Radicchio are February, March, April, August, September. Hamburg has 210 frost-free days per year, with winter lows of -2°C and summer highs of 23°C. Radicchio is frost tolerant, giving you more flexibility with planting dates.

How long does radicchio take to grow in Hamburg?

Radicchio typically takes 60-80 days from planting to harvest. In Hamburg's Oceanic / Marine west coast climate with 210 frost-free days, you have plenty of time to grow Radicchio to maturity. Fall-planted heads are best. Cold brings out red color. 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 radicchio indoors in Hamburg?

Radicchio can potentially be grown indoors in Hamburg with proper conditions. It requires full sun to partial shade (2-4 hours of indirect light). 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 radicchio in Hamburg?

Plant Radicchio in Hamburg during February, March, April, August, September. These are the optimal months based on Hamburg's USDA Zone 5 climate, 210 frost-free days, and temperature range of -2°C to 23°C.

Is radicchio hard to grow in Hamburg?

Radicchio is rated "medium" to grow in Hamburg. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Radicchio in Hamburg is Good.

What grows well with radicchio in Hamburg?

In Hamburg, you can grow many companion plants alongside Radicchio. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in Hamburg's Zone 5 climate.

Does radicchio need full sun in Hamburg?

Radicchio requires full sun to partial shade. Radicchio tolerates lower light. In Hamburg, a spot with filtered or indirect light for 2-4 hours works well.

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

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