Rose of Sharon

[Toddz]

Does this look like iron deficiency or magnesium deficiency?

 

[Logan]

It could be iron deficiency.

 

[Toddz]

I thought it was too but I thought I would get a second opinion.

 

[Logan]

You need something like sequestion of iron. I don't know if I've spelt that correctly. Put it into some water and water it on the plants. The new leaves should look normal, not sure if the older ones will change back.

 

[Toddz]

I have chelated iron. That's what I used on my roses.

 

[YumYum]

If it is an iron deficiency, you may want to check the pH of the soil before adding anything. High pH levels can cause plants to not be able to uptake it even if there is sufficient amounts in the soil.

 

[Toddz]

If it is an iron deficiency, you may want to check the pH of the soil before adding anything. High pH levels can cause plants to not be able to uptake it even if there is sufficient amounts in the soil.

The same plant right beside doesn't have any problems. I'm going to test the pH tomorrow.

 

[Logan]

I have chelated iron. That's what I used on my roses.

Yes you can use that. I had a row of roses and one of them was suffering from iron deficiency. Can't remember if i took a soil sample but it was that.

 

[oneeye]

I've seen this happen many times. Stop using tap water to fix it because its only making it worse. NO the problem here is the pH of the water you are putting on the plant. As the pH rises due to using tap water it locks up iron because of alkalinity. Catch some rainwater and only use rainwater and the yellowing will go away. If you can't catch any rain then use pH down with your water to lower the pH.

 

[Toddz]

I've seen this happen many times. Stop using tap water to fix it because its only making it worse. NO the problem here is the pH of the water you are putting on the plant. As the pH rises due to using tap water it locks up iron because of alkalinity. Catch some rainwater and only use rainwater and the yellowing will go away. If you can't catch any rain then use pH down with your water to lower the pH.

We have well water but it's alkaline.

 

[DirtMechanic]

I've seen this happen many times. Stop using tap water to fix it because its only making it worse. NO the problem here is the pH of the water you are putting on the plant. As the pH rises due to using tap water it locks up iron because of alkalinity. Catch some rainwater and only use rainwater and the yellowing will go away. If you can't catch any rain then use pH down with your water to lower the pH.

Acids dissolve metals. Check.

 

[Ruderunner]

Tell me about it. Our well water is slightly acidic. Typical lifespan of fixtures is 7 to 10 years.

Which reminds me, it's been awhile since the well pump was replaced. Joy.