Iron deficiency, or iron chlorosis, is another potential reason for yellow lawns, but it’s not as common as other causes.
What is Iron Chlorosis?
Iron chlorosis is a condition in which grass fails to get enough iron. However, this usually affects trees like oaks more than grass. In grass, chlorosis is often seen as yellowing between the veins of leaves. It’s important to note that iron deficiency in grass is rare, especially in the GTA (Greater Toronto Area), where soils typically retain enough iron.
Should You Worry About Iron?
Unless your lawn is growing in acidic soils or your grass is specifically lacking iron, iron deficiencies are usually not the main cause of yellowing. If you’re concerned about iron levels, a soil test is the best way to confirm it.
Fixing Iron Deficiency
If your lawn does show signs of iron deficiency, applying an iron-based product like Fiesta can temporarily make the lawn appear greener. But remember, it’s not a long-term solution.
