Greenly Garden

A Coruña: frost dates

Spain

Last spring frostaround 20 January
First autumn frostnone in ten years

Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha27 November6 January27 January
Arugula—9 Decembersow 30 December
Basil7 April15 May5 June
Beet—9 Decembersow 30 December
Bell Pepper2 March15 May5 June
Black-eyed Susan26 November—27 January
Bok Choy2 December6 January27 January
Broad bean—9 Decembersow 30 December
Broccoli—9 Decembersow 30 December
Brussels Sprouts25 October9 December30 December
Cabbage—9 Decembersow 30 December
Calendula—9 Decembersow 30 December
Carrot——sow 30 December
Cauliflower28 October9 December30 December
Celeriac21 October6 January27 January
Celery21 October6 January27 January
Celosia10 March24 April15 May
Chamomile—9 Decembersow 30 December
Chayote16 November12 February5 March
Chickpea——sow 30 December
Chili Pepper20 March2 June23 June
China aster24 March15 May5 June
Chives——sow 30 December
Cilantro—9 Decembersow 30 December
Corn—12 Februarysow 5 March
Cosmos10 March24 April15 May
Cucumber3 April15 May5 June
Daikon—9 Decembersow 30 December
Delphinium1 November—30 December
Dill—9 Decembersow 30 December
Eggplant6 March15 May5 June
Florence fennel22 November6 January27 January
Garden sorrel—9 Decembersow 30 December
Green Beans6 January12 February5 March
Hyssop——sow 30 December
Kale—9 Decembersow 30 December
Kiwano16 March17 April8 May
Kohlrabi—9 Decembersow 30 December
Leek30 September9 December30 December
Lemon balm—9 Decembersow 30 December
Lettuce—9 Decembersow 30 December
Lisianthus13 September9 December30 December
Lovage——sow 30 December
Luffa3 April15 May5 June
Marigold25 November6 January27 January
Melon24 March15 May5 June
Microgreens—24 Aprilsow 15 May
Moringa8 April2 June23 June
Mustard greens—9 Decembersow 30 December
Napa cabbage4 December6 January27 January
Nasturtium29 November6 January27 January
Okra3 April15 May5 June
Oregano10 October9 December30 December
Pansy14 October9 December30 December
Parsley—9 Decembersow 30 December
Parsnip——sow 30 December
Peanut8 April15 May5 June
Peas—9 Decembersow 30 December
Petunia13 March15 May5 June
Physalis3 March17 April8 May
Pumpkin11 March17 April8 May
Purple coneflower29 October—30 December
Radish——sow 30 December
Sage21 October9 December30 December
Snapdragon5 October9 December30 December
Spinach—9 Decembersow 30 December
Stevia27 February17 April8 May
Stock—9 Decembersow 30 December
Sunflower—24 Aprilsow 15 May
Sweet Corn—12 Februarysow 5 March
Sweet pea28 October9 December30 December
Sweet William——sow 30 December
Swiss Chard—9 Decembersow 30 December
Thyme—9 Decembersow 30 December
Tomato19 February17 April8 May
Turnip—9 Decembersow 30 December
Watercress—9 Decembersow 30 December
Watermelon13 April15 May5 June
Zinnia28 April2 June23 June
Zucchini16 March17 April8 May

Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day.

Planted in autumn

CropPlant around
Bearded Iris1 October
Crocus1 October
Daffodil1 October
Garlic1 October
Hyacinth1 October
Lily1 October
Peony1 October
Saffron1 October
Tulip1 October
Wild garlic1 October

A month before the first autumn frost, so the roots grow before winter.

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