I have started gardening this year for the first time. Our garden in mainly limited to patio, so I have had to use growbags and pots to create space. My runner beans are all beginning to have yellow leaves. They are setting beans and producing flowers and up until a couple of weeks ago, they looked really healthy. I have been feeding with an organic worm-cast feed every week. Any advice appreciated. I have read that nitrogen deficiency may be the problem?
Many thanks for your advice, I have been feeding with an organic tomato feed, improved drainage and they are bouncing back nicely!
Yes, yellow beans are typically a sign of poor soil conditions or poor watering conditions. Check your soil and make sure you aren't over- or underwatering. This article will give you some tips on how to correct your soil if that's the issue:
And this article will give you some additional tips on growing beans: