Quite a few of my plants have got yellow leaves. This is most prominent on my butternut squash, beans, sweetcorn and tomatoes. I’ve done a bit of googling, as one does when one has veg patch mysteries, and a little bit of book research (a more traditional approach) and I suspect “chlorosis” which can be caused by:
- Deficiency in magnesium, iron or nitrogen.
- Waterlogged soil (I don’t think this has been a problem lately as it’s been pretty dry)
- Low temperatures (again, not a problem lately)
- Weedkiller contamination (I haven’t used any weedkiller, so this can’t be it)
By process of elimination I am assuming my plants are deficient in magnesium, iron or nitrogen. I’ve just given them all a liquid feed, and I’ll see how they do over the next few days. I hadn’t realised how important it was to give them food – I kind of thought that they had what they’d need from the compost I added when I planted them, and from watering. But I guess they need more. Sorry plants!