Garden Guide

Garden Guide for Hamburg, Norddeutschland

Hamburg, located in Northern Germany, is in Hardiness Zone 9a and benefits from a temperate maritime climate. This means mild winters and moderate summers, often with sufficient rainfall. The soils are frequently sandy-loamy to loamy and can naturally have a good humus content, which is advantageous for many crops.

In Hamburg, thanks to Hardiness Zone 9a and the last frost typically in mid-February, you can start gardening early. Hardy crops like lettuces, carrots, and Swiss chard can often go outdoors as early as March, while heat-loving plants such as tomatoes and zucchini should only be safely planted out after the 'Ice Saints' in May. The gardening season usually extends until the first frost in early December.

Zone 9a Last frost: Mid February First frost: Early December maritime

Also applies to: Bremen, Kiel, Lübeck, Rostock, Schwerin

Plan your Hamburg garden in the Fryd app

Planting Calendar

When to start indoors, sow outdoors, and harvest in Hamburg.

Light Water Nutrients

Start indoors Sowing Harvest

Planting calendar for Hamburg, Zone 9a
Crop	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Carrots ●●● ●●○ ●●○
Lettuce (Lettuce) ●●○ ●●○ ●●○
Strawberry ●●● ●●○ ●●○
Tomato (Stake tomato) ●●● ●●○ ●●●
Tomato (Bush tomato) ●●● ●●○ ●●●
Bean (Dwarf bean) ●●○ ●●○ ●●○
Basil ●●● ●●○ ●●●
Arugula / Rocket ●●● ●●○ ●●○
Broccoli ●●● ●●● ●●●
Kohlrabi / German turnip / Turnip cabbage ●●○ ●●○ ●●○
Courgette / Zucchini ●●● ●●● ●●●
Cucumber / Gherkin ●●● ●●● ●●●
Pea ●●● ●●● ●○○
Aubergine / Eggplant ●●● ●●● ●●●
Chard ●●○ ●●● ●●○
Pepper / Paprika ●●● ●●● ●●●
Onion ●●● ●●○ ●●○
Cauliflower ●●○ ●●● ●●●
Radishes ●●○ ●●○ ●○○
Spinach (Summer) ●○○ ●●● ●●○

Carrots ●●● ●●○ ●●○

Lettuce (Lettuce) ●●○ ●●○ ●●○

Strawberry ●●● ●●○ ●●○

Tomato (Stake tomato) ●●● ●●○ ●●●

Tomato (Bush tomato) ●●● ●●○ ●●●

Bean (Dwarf bean) ●●○ ●●○ ●●○

Basil ●●● ●●○ ●●●

Arugula / Rocket ●●● ●●○ ●●○

Broccoli ●●● ●●● ●●●

Kohlrabi / German turnip / Turnip cabbage ●●○ ●●○ ●●○

Courgette / Zucchini ●●● ●●● ●●●

Cucumber / Gherkin ●●● ●●● ●●●

Pea ●●● ●●● ●○○

Aubergine / Eggplant ●●● ●●● ●●●

Chard ●●○ ●●● ●●○

Pepper / Paprika ●●● ●●● ●●●

Onion ●●● ●●○ ●●○

Cauliflower ●●○ ●●● ●●●

Radishes ●●○ ●●○ ●○○

Spinach (Summer) ●○○ ●●● ●●○

Planting Calendar Hamburg

Carrots: Sowing Mar - Jun, Harvest Jul - Nov (Light: high, Water: medium, Nutrients: medium)
Lettuce (Lettuce): Start indoors Feb - Aug, Sowing Mar - Sep, Harvest Mar - Nov (Light: medium, Water: medium, Nutrients: medium)
Strawberry: Start indoors Jan - May, Sowing Mar - Jun, Harvest Apr - Oct (Light: high, Water: medium, Nutrients: medium)
Tomato (Stake tomato): Start indoors Feb - May, Sowing Apr - Jul, Harvest Jun - Oct (Light: high, Water: medium, Nutrients: high)
Tomato (Bush tomato): Start indoors Jan - Mar, Sowing Apr - Jun, Harvest Jun - Sep (Light: high, Water: medium, Nutrients: high)
Bean (Dwarf bean): Sowing Apr - Jul, Harvest Jun - Oct (Light: medium, Water: medium, Nutrients: medium)
Basil: Start indoors Feb - Jul, Sowing Apr - Jul, Harvest Apr - Oct (Light: high, Water: medium, Nutrients: high)
Arugula / Rocket: Start indoors Jan - Oct, Sowing Feb - Nov, Harvest Apr - Dec (Light: high, Water: medium, Nutrients: medium)
Broccoli: Start indoors Feb - Jul, Sowing Mar - Sep, Harvest May (Light: high, Water: high, Nutrients: high)
Kohlrabi / German turnip / Turnip cabbage: Start indoors Jan - Jun, Sowing Feb - Jul, Harvest Apr - Oct (Light: medium, Water: medium, Nutrients: medium)
Courgette / Zucchini: Start indoors Mar - Jun, Sowing Apr - Aug, Harvest Jun - Oct (Light: high, Water: high, Nutrients: high)
Cucumber / Gherkin: Start indoors Feb - May, Sowing Apr - Jun, Harvest May - Oct (Light: high, Water: high, Nutrients: high)
Pea: Sowing Feb - Jun, Harvest May - Sep (Light: high, Water: high, Nutrients: low)
Aubergine / Eggplant: Start indoors Jan - May, Sowing Apr - Jul, Harvest Jun - Sep (Light: high, Water: high, Nutrients: high)
Chard: Start indoors Mar - Aug, Sowing Mar - Aug, Harvest Jun - Oct (Light: medium, Water: high, Nutrients: medium)
Pepper / Paprika: Start indoors Jan - Apr, Sowing Apr - Jun, Harvest Jul - Oct (Light: high, Water: high, Nutrients: high)
Onion: Start indoors Jan - Mar, Sowing Feb - Apr, Harvest Jun - Oct (Light: high, Water: medium, Nutrients: medium)
Cauliflower: Start indoors Jan - Jul, Sowing Mar - Sep, Harvest May - Oct (Light: medium, Water: high, Nutrients: high)
Radishes: Sowing Feb - Oct, Harvest Apr - Nov (Light: medium, Water: medium, Nutrients: low)
Spinach (Summer): Sowing Feb - Jun, Harvest Mar - Jul (Light: low, Water: high, Nutrients: medium)

Based on Fryd planting data for Zone 9a, 2026.

Companion Planting for Hamburg

Plants that thrive together in Norddeutschland.

Lettuce (Lettuce) + Carrots

Chard + Carrots

Lettuce (Lettuce) + Spinach (Summer)

Spinach (Summer) + Strawberry

Radishes + Strawberry

Plan companions visually

Drag and drop crops in the Fryd bed planner to see companion matches.

Try Fryd →

Growing Tips for Hamburg

Preparing Soil for Heavy Feeders

Crops like broccoli, tomatoes, and zucchini are heavy feeders and benefit from deep, humus-rich, and nutrient-dense soil. Good soil preparation with compost or organic fertilizer is essential here for a bountiful harvest.

Protecting Cold-Sensitive Plants

Zucchini, eggplants, cucumbers, basil, and tomatoes are cold-sensitive and should only be planted outdoors in Hamburg after the 'Ice Saints' (mid-May). Choose a sunny and sheltered spot for them to ensure optimal growth.

Using Lettuces as Gap Fillers

Lettuces like garden lettuce or endives are excellent as pre-crops, inter-crops, or post-crops. They have moderate nutrient requirements and, with clever selection, can be harvested almost all year round to make efficient use of your beds.

Common Pests & Diseases

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Keeping an Eye on Slugs

Slugs are often a nuisance in humid Hamburg gardens, especially for young lettuce or Swiss chard plants. Collect them regularly, install slug fences, or use organic slug pellets.

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Naturally Combating Aphids

If you have an aphid infestation on plants like beans or kohlrabi, you can rinse them off with a strong jet of water. Soapy water or introducing beneficial insects like ladybugs also helps keep the population in check.

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Preventing Powdery Mildew

Powdery mildew can affect cucumbers or zucchini, especially in humid weather and with poor air circulation. Ensure adequate plant spacing and strengthen your plants with plant teas to make them more resilient.

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Deterring Cabbage White Caterpillars

The cabbage white butterfly loves to lay its eggs on brassicas like broccoli or kohlrabi. Protect your plants with fine-mesh netting or regularly hand-pick the caterpillars if you find them.

Frequently Asked Questions

When should I plant out tomatoes in Hamburg?

Tomatoes are very cold-sensitive and should only be planted outdoors in Hamburg after the 'Ice Saints,' which is typically mid-May. Choose a sunny, warm, and sheltered spot, and ensure they get enough water and nutrients.

What hardiness zone is Hamburg in?

Hamburg is in Hardiness Zone 9a. This means winters are relatively mild, allowing you to enjoy a longer growing season for many crops.

Which vegetables grow best in Hamburg?

Many vegetables thrive in Hamburg. Especially recommended are cold-tolerant and moisture-loving plants like lettuces, carrots, Swiss chard, kohlrabi, and peas, which cope well with the temperate climate.

When is the last frost in Hamburg?

The last frost in Hamburg is typically in mid-February. This allows for an early start to the gardening season for hardy crops, while more sensitive plants still need protection.