Tomato cold damage

Tomato – cold weather damage

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Time to act
Time to act

Do not Time to act in January

Do not Time to act in February

Do Time to act in March

Do Time to act in April

Do Time to act in May

Do Time to act in June

Do Time to act in July

Do Time to act in August

Do Time to act in September

Do Time to act in October

Do Time to act in November

Do not Time to act in December

Sun-loving tomatoes can suffer outdoors during spells of cold weather, with ideal temperatures from 18-24°C and no lower than 13°C. If it is too cold there might be poor pollination, curling of leaves and the fruits might be scarred, with holes.



Tomato leaves curl up, pollination is poor and the fruit might develop scars and holes.

Find it on




Don’t plant out tomatoes until temperatures in early summer have risen, especially at night. If in doubt, plant the tomatoes into generous-sized pots so the roots have plenty of room to grow and stand them outside on warm days, bringing them indoors when the temperatures drop. By late-June it’s usually safe to leave them outside in a sheltered, south-facing, sunny position. When temperatures dip again at the end of summer and early autumn, give tomato plants overnight protection with horticultural fleece, which should keep them safe until the first frosts.