I'm seeing odd patterns in plant health in the UK, despite being in one of the best fruit and veg growing areas in the country.... my observations:
a) Garden centres are selling compost that appears much lower quality than last year and that doesn't hold water as well, it also has much more perlite/vermiculite (or something else?) in it,
b) We've had MUCH better sun than last year - when I had a bumper crop - but this year both plant chlorophil and produce levels are 50% down. I've been providing plenty of seaweed, tomorite and manure but it's having little effect? Typical summer temps here are 15 to 25 degrees but we've had 25 to 40 this year - so why aren't plants producing?
c) Plants that usually overgrow are even more reduced in size; mint, perpetual sweet peas, raspberries, rhubarb, courgettes,
I am having a chlorophyll problem with many plants this year as well. I am in the Pacific Northwest (USA). I added iron and it helped.....a little. But I was really taken by surprise that so many of my plants gave me this trouble! You might be on to something about the fertilizers and water. I am going to do an experiment on one of the plants that I'm losing to this battle. I will try adding hydrogen peroxide to todays watering and see if anything happens.
