The following information is for spring planting.
If the weather is particularly cold or windy, it is a good idea to harden off at least the more tender plants, like squash, beans, peas and sweetcorn. If you are planting any in a greenhouse, you do not need to harden them off, this is only for planting outside.
Which plants to harden off:
- Beans – French, Runner & Borlotti
- Peas – Mangetout, Sugarsnap, Garden
- Winter Squash & Pumpkin
- Summer Squash/Courgette
(If they’re not on the list above, you can usually plant them straight out unless frost is forecast)
How to harden them off:
Plant them temporarily in their punnets with a little compost, or in small pots if you have them. During the daytime, pop them outside to get used to the climate, and then bring them back under cover at night time – to a greenhouse, porch or similar. Do this for 4-7 days before planting them out permanently.