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Maybe. People do it with sweet pea seeds don't they?I've given up growing beans myself. They need far more water then they get from rainfall here and water butt content is better used on more valuable crops. Beans are cheap to buy dried, frozen or tinned - depending on variety - for culinary use and I really don't like runners. Butter beans are the only kind I find hard to source or expensive in tins - the French can be chauvinistic about their varieties - but I can't see me growing those either.
Would it be worth soaking beans in water for 6 / 12 / 24 hours before sowing in damp compost?
All beans have had 99% germination, with the exception of the bought ones, of which only two germinated. I notice that the seed, bought in February, is from 2017, sow by 2020. Not too impressive.
extreme heat to extreme cold