Andrew R watched with envy at Mrs Archer's runner bean experiment! We were dismayed when we saw how much yours had grown, whereas ours did not show any sign of growth. We placed all the pots outside and put one pot indoors (on the SW facing window). Andrew diligently watered the pots every morning. Alas, there was no sign of life above the soil in any of the pots. We have decided this evening to move all the pots indoors and place it in Andrew’s bedroom (SW facing). We still have one pot outdoors which we will leave as the outdoor pot. We then checked the indoor pot (downstairs) again 15 mins ago and there was a small sprout - 4cm. Andrew was delighted!