Germination Temperatures for Vegetables
Minimum (°C) Preferred (°C)
bean - broad 5 8
bean – french & runner 8-10 16-30
beetroot 4 10-30
broccoli/calabrese 4 7-35
cabbage 4 7-35
carrot 4 7-30
cauliflower 4 7-30
celeriac 10 15+
celery 4 15-21
chilli 18 21+
courgette 16 21-35
cucumber 16 16-35
eggplant 16 24-32
kale 5 8+
leek 7 12
lettuce 2 4-27
Mange tout 10 12-24
marrow 16 21-35
onion 2 10-35
parsley 4 10-30
parsnip 2 10-21
pea 4 4-24
pepper 16 18-35
pumpkin 16 21-32
radish 4 7-32
spinach 2 7-24
sprout 4 7-35
squash 12 21-35
swede 7 10+
sweetcorn 10 16-32
tomato 10 16-30
turnip 8 8+
