What to sow in Edinburgh in September
In September, Edinburgh averages 13 °C, with nights around 10 °C.
Frosty nights are usual from November to March: the last frost typically comes in March.
A typical winter's coldest night: −4 °C.
Warmest month (15 °C or more on average): July.
Sow outdoors
- Onion (Allium cepa)
- Beet (Beta vulgaris)
- Lettuce (Lactuca sativa)
- Chives (Allium schoenoprasum)
- Spinach (Spinacia oleracea)
- Rape (Brassica napus)
- Quinoa (Chenopodium quinoa)
- Brown mustard (Brassica juncea)
- Chinese chives (Allium tuberosum)
- Borage (Borago officinalis)
- Pot marigold (Calendula officinalis)
- Garden cress (Lepidium sativum)
- Opium Poppy (Papaver somniferum)
- Eastern purple coneflower (Echinacea purpurea)
- Mountain arnica (Arnica montana)
- Hemp (Cannabis sativa)
- Turnip-root chervil (Chaerophyllum bulbosum)
- Crown daisy (Glebionis coronaria)
- Tobacco (Nicotiana tabacum)
- Oat (Avena sativa)
- Rye (Secale cereale)
- Narrowleaf lupine (Lupinus angustifolius)
- Lemon balm (Melissa officinalis)
- Sage (Salvia officinalis)
Sow indoors
In pots or trays somewhere warm, to plant out later.
Nothing to sow this month.
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Month by month
Worked out from the last ten years of Edinburgh's climate and each plant's needs: germination temperature, frost limit and time to harvest.