What to sow in Cardiff in June
In June, Cardiff averages 15 °C, with nights around 12 °C.
Frosty nights are usual from December to February: the last frost typically comes in February.
A typical winter's coldest night: −2 °C.
Warm months (15 °C or more on average): June to September.
Sow outdoors
- Onion (Allium cepa)
- Beet (Beta vulgaris)
- Endive (Cichorium endivia)
- Fennel (Foeniculum vulgare)
- Lettuce (Lactuca sativa)
- Pepper (Capsicum annuum)
- Radish (Raphanus sativus)
- Welsh onion (Allium fistulosum)
- Cabbage (Brassica oleracea)
- Chives (Allium schoenoprasum)
- Cucumber (Cucumis sativus)
- Courgette (Cucurbita pepo)
- French bean (Phaseolus vulgaris)
- Pea (Pisum sativum)
- Spinach (Spinacia oleracea)
- Broad Bean (Vicia faba)
- Corn (Zea mays)
- Leek (Allium ampeloprasum)
- Rape (Brassica napus)
- Salsify (Tragopogon porrifolius)
- Quinoa (Chenopodium quinoa)
- Cape Gooseberry (Physalis peruviana)
- Sweet basil (Ocimum basilicum)
- Brown mustard (Brassica juncea)
Sow indoors
In pots or trays somewhere warm, to plant out later.
- Parsley (Petroselinum crispum)
- Carrot (Daucus carota)
- Common Poppy (Papaver rhoeas)
- Snapdragon (Antirrhinum majus)
- Garden leek (Allium porrum)
- Niger (Guizotia abyssinica)
- Musk okra (Abelmoschus moschatus)
- Karroothorn (Vachellia karroo)
- Acanthosicyos naudinianus (Citrullus naudinianus)
- Agarwood (Aquilaria malaccensis)
- Applering acacia (Faidherbia albida)
- Pitahaya (Hylocereus undatus)
- Nalta jute (Corchorus olitorius)
- Tree marigold (Tithonia diversifolia)
- Pachystela msolo
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Month by month
Worked out from the last ten years of Cardiff's climate and each plant's needs: germination temperature, frost limit and time to harvest.