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Jun 15, 2016 4:49 PM CST
Utah (Zone 7a)
At my old house all my day lily leaves were deep green. I moved and they were transplanted 2 years ago. Now many varieties went yellowish. Some of the yellow plants are planted right next to a variety that kept deep green leaves. WHY?

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How do I help these plants? The very yellow ones don't want to bloom.
Jun 15, 2016 5:26 PM CST
Name: Ken
East S.F. Bay Area (Zone 9a)
Region: California
It's chlorosis, probably caused by alkaline soil, which makes many micronutrients unavailable for plant uptake. It's not uncommon to see it around concrete or brickwork, but it can occur anywhere. Domestic water supplies tend to run around pH 8.5, which means that areas which don't receive much rainfall—such as foundation plantings under wide eaves—will tend to have this problem moreso than other areas of your property.

A soil test is the most correct way to proceed, but if it were me, I'd find an iron and micro-nutrient supplement and give it a shot. These sorts of products usually contain something to help bring the pH of the soil down as well, which will make the micro-nutrients more capable of being absorbed by plant roots.

E.B. Stone Sul Po Mag is a good one

I've seen fast response from GreenAll F.S.T.
Jun 15, 2016 5:34 PM CST
Utah (Zone 7a)
Your explanation is a perfect description.

Thank you KEN.!!!! 🌺🌺🌺

At the old place they were in a field and watered with muddy irrigation water.

Now they are surrounded by concrete and watered with culinary city water. I'll try giving them some of that fertilizer and think about transplanting them.
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