Garden Guide
Garden Guide for Copenhagen, Capital Region & Zealand
Copenhagen (USDA Hardiness Zone 8a) enjoys a maritime climate with mild winters and cool summers. The soil is often clayey, but can also have sandy or humus-rich components. Make sure to ensure good drainage and plenty of humus.
In Copenhagen (USDA Hardiness Zone 8a), you can start sowing after the last frost, typically in early April. Garden lettuce can be pre-grown from March to September and harvested from April to November. Sow radishes from March to September for a harvest from June to October. Start your tomatoes indoors from March to May and harvest them from July to October.
Also applies to: Malmö, Roskilde, Lund, Helsingborg, Odense
Plan your Copenhagen garden in the Fryd appPlanting Calendar
When to start indoors, sow outdoors, and harvest in Copenhagen.
| Crop | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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| Carrots ●●● ●●○ ●○○ | |
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| Lettuce (Lettuce) ●●○ ●●○ ●●○ | |
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| Cucumber / Gherkin ●●● ●●○ ●●● | |
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| Courgette / Zucchini ●●● ●●● ●●● | |
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| Pepper / Paprika ●●● ●●○ ●●● | |
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| Potato ●●● ●●○ ●●● | |
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| Radishes ●●● ●●○ ●○○ | |
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| Tomato (Bush tomato) ●●● ●●○ ●●● | |
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| Tomato (Cocktail bush tomato) ●●● ●●○ ●●● | |
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| Onion ●●● ●●○ ●●○ | |
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| Bean (Dwarf bean) ●●● ●●○ ●○○ | |
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| Pea ●●● ●●○ ●○○ | |
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| Basil ●●● ●●○ ●●● | |
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| Beetroot ●●● ●●○ ●●○ | |
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| Strawberry ●●● ●●○ ●●● | |
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| Kohlrabi / German turnip / Turnip cabbage ●●● ●●○ ●●○ | |
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| Garlic ●●● ●●○ ●○○ | |
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| Pumpkin / Squash ●●● ●●● ●●● | |
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| Broccoli ●●● ●●● ●●● | |
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| Common marigold ●●● ●○○ | |
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Planting Calendar Copenhagen
- Carrots: Sowing Apr - Jul, Harvest Jul - Nov (Light: high, Water: medium, Nutrients: low)
- Lettuce (Lettuce): Start indoors Mar - Sep, Sowing Apr - Oct, Harvest Apr - Nov (Light: medium, Water: medium, Nutrients: medium)
- Cucumber / Gherkin: Start indoors May - Jun, Sowing Jun - Jul, Harvest Jul - Oct (Light: high, Water: medium, Nutrients: high)
- Courgette / Zucchini: Start indoors Apr - Jun, Sowing Jun - Jul, Harvest Jul - Oct (Light: high, Water: high, Nutrients: high)
- Pepper / Paprika: Start indoors Mar - Apr, Sowing Jun - Jul, Harvest Aug - Oct (Light: high, Water: medium, Nutrients: high)
- Potato: Start indoors Mar - Apr, Sowing Apr - Jul, Harvest Jul - Oct (Light: high, Water: medium, Nutrients: high)
- Radishes: Sowing Mar - Sep, Harvest Jun - Oct (Light: high, Water: medium, Nutrients: low)
- Tomato (Bush tomato): Start indoors Mar - May, Sowing Jun - Jul, Harvest Jul - Oct (Light: high, Water: medium, Nutrients: high)
- Tomato (Cocktail bush tomato): Start indoors Mar - May, Sowing Jun - Jul, Harvest Jul - Oct (Light: high, Water: medium, Nutrients: high)
- Onion: Start indoors Feb - Mar, Sowing Mar - May, Harvest Aug - Sep (Light: high, Water: medium, Nutrients: medium)
- Bean (Dwarf bean): Start indoors May - Jun, Sowing Jun - Jul, Harvest Jul - Oct (Light: high, Water: medium, Nutrients: low)
- Pea: Sowing Apr - Jul, Harvest Jun - Oct (Light: high, Water: medium, Nutrients: low)
- Basil: Start indoors Apr - Jul, Sowing Jun - Aug, Harvest Jun - Oct (Light: high, Water: medium, Nutrients: high)
- Beetroot: Start indoors Mar - Apr, Sowing Apr - Jul, Harvest Jul - Oct (Light: high, Water: medium, Nutrients: medium)
- Strawberry: Start indoors Mar - May, Sowing Apr - Jul, Harvest Jun - Oct (Light: high, Water: medium, Nutrients: high)
- Kohlrabi / German turnip / Turnip cabbage: Start indoors Mar - Jun, Sowing Apr - Jul, Harvest Jun - Oct (Light: high, Water: medium, Nutrients: medium)
- Garlic: Sowing Sep - Nov, Harvest Jun - Aug (Light: high, Water: medium, Nutrients: low)
- Pumpkin / Squash: Start indoors Apr - Jun, Sowing Jun - Jul, Harvest Sep - Oct (Light: high, Water: high, Nutrients: high)
- Broccoli: Start indoors Mar - May, Sowing Jun - Jul, Harvest Jul - Oct (Light: high, Water: high, Nutrients: high)
- Common marigold: Start indoors Mar - Apr, Sowing May - Aug, Harvest Jul - Nov (Light: high, Nutrients: low)
Based on Fryd planting data for Zone 8a, 2026.
Companion Planting for Copenhagen
Plants that thrive together in Capital Region & Zealand.
Lettuce (Lettuce) + Carrots
Radishes + Carrots
Lettuce (Lettuce) + Radishes
Onion + Cucumber / Gherkin
Garlic + Cucumber / Gherkin
Plan companions visually
Drag and drop crops in the Fryd bed planner to see companion matches.
Try Fryd →Growing Tips for Copenhagen
Choosing Your Spot & Soil Prep
Many crops like carrots, onions, and radishes prefer loose, humus-rich, and well-draining soil. Loosen the soil deeply and work in compost to prevent waterlogging and ensure a good supply of nutrients.
Starting Warm-Season Plants Indoors
For frost-sensitive plants like tomatoes, pumpkins, and zucchini, it's a must to start them indoors in Copenhagen. Begin in April or May to get strong seedlings ready to go outdoors from mid-May.
Consistent Moisture
Especially fast-growing crops like radishes, broccoli, and pumpkins need a constant water supply. Make sure the soil is always moist but not soggy to prevent woody roots or stunted growth.
Mind Their Light Needs
Most vegetables like carrots, onions, and potatoes are sun-lovers and thrive best in a full-sun location. Choose a spot in your garden that gets at least six hours of direct sunlight per day.
Common Pests & Diseases
Aphids
If you have an aphid infestation, you can spray the plants with a strong stream of water or use a soapy solution (liquid soap and water). Encourage beneficial insects like ladybugs and lacewings by planting insect-friendly plants.
Slugs
To keep slugs away, collect them regularly, especially after rain or in the evening. Place slug collars around vulnerable plants or scatter organic slug pellets.
Preventing Fungal Diseases
Ensure adequate spacing between plants and good air circulation to prevent fungal diseases like powdery mildew. Always water at the base of the plant and avoid wetting the leaves.
Weed Control
Keep your beds regularly weed-free, as weeds compete with your cultivated plants for water and nutrients. A layer of mulch can help suppress weed growth and retain soil moisture.
Frequently Asked Questions
When should I plant tomatoes in Copenhagen?
You should start your tomatoes indoors in Copenhagen from March to May. The seedlings can then be planted outdoors or in a greenhouse after the last frost, typically from early April, with harvesting from July to October.
What hardiness zone is Copenhagen in?
Copenhagen is in USDA Hardiness Zone 8a. This means you can expect mild winters where temperatures rarely drop below -12 °C (10 °F), allowing for a wide variety of plants to be grown.
What vegetables grow well in Copenhagen?
Many cold-hardy vegetables like garden lettuce, radishes, carrots, and kohlrabi thrive wonderfully in Copenhagen. Potatoes and strawberries are also great choices for your garden beds.
When is the last frost in Copenhagen?
The last frost in Copenhagen is typically expected in early April. After that, you can safely plant frost-sensitive plants outdoors without them getting damaged.