What to sow in York in May
In May, York averages 12 °C, with nights around 7 °C.
Frosty nights are usual from November to April: the last frost typically comes in April.
A typical winter's coldest night: −4 °C.
Warm months (15 °C or more on average): July to August.
Sow outdoors
- Onion (Allium cepa)
- Beet (Beta vulgaris)
- Endive (Cichorium endivia)
- Chicory (Cichorium intybus)
- Fennel (Foeniculum vulgare)
- Lettuce (Lactuca sativa)
- Radish (Raphanus sativus)
- Cabbage (Brassica oleracea)
- Chives (Allium schoenoprasum)
- Carrot (Daucus carota)
- Pea (Pisum sativum)
- Spinach (Spinacia oleracea)
- Broad Bean (Vicia faba)
- Turnip (Brassica rapa)
- Rape (Brassica napus)
- Parsnip (Pastinaca sativa)
- Salsify (Tragopogon porrifolius)
- Quinoa (Chenopodium quinoa)
- Winter savory (Satureja montana)
- Brown mustard (Brassica juncea)
- Chinese chives (Allium tuberosum)
- Coriander (Coriandrum sativum)
- Dill (Anethum graveolens)
- Arrach (Atriplex hortensis)
Sow indoors
In pots or trays somewhere warm, to plant out later.
- Celery (Apium graveolens)
- Parsley (Petroselinum crispum)
- Welsh onion (Allium fistulosum)
- Cucumber (Cucumis sativus)
- French bean (Phaseolus vulgaris)
- Sweet basil (Ocimum basilicum)
- Marshmallow (Althaea officinalis)
- Garden leek (Allium porrum)
New next month, in June
- Pepper (Capsicum annuum)
- Courgette (Cucurbita pepo)
- Leek (Allium ampeloprasum)
- Sunflower (Helianthus annuus)
- Oregano (Origanum vulgare)
- Common Poppy (Papaver rhoeas)
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Month by month
Worked out from the last ten years of York's climate and each plant's needs: germination temperature, frost limit and time to harvest.