What does it when you're foliage gets yellow?

Question

My garden plants are turning yellow? Is it overwatering or under-noursihed?

Answer 1

If they have yellow leaves but green ribs, they might have iron chlorosis, which is an inability for the roots to take in iron from the soil. You may have enough nutrients and water in the soil, but no electrical conductivity to recharge ion particles to attach to water molecules for the roots to absorb.
Soil tests will usually show pH levels, but will not show presence of iron. However, a pH test will show the presence of too much salt in your soil, which can also yellow the leaves.
You can buy a simple soil test kit from your home garden store. Follow the instructions carefully, and test three samples instead of just one, so you can get a two-out-of-three result to confirm your results.
One way to combat iron chlorosis and high salt conent is to add lime and gypsum to your soil. You should also add some sulphur to your soil as well. Sulphur will help encourage the growth of soil biota that can break down minerals and make them available to the plant. You can look for fertilizers containing sulphur and bags of lime and gypsum at your garden center. You can add the sulphur now, and see if that helps, but I would hold back on adding the lime until you have tested your soil, and wait until the growing season is done before doing any soil amending.
Hope that helps. Good Luck.

Answer 2

It can be that you are watering at the wrong times. IF you are are watering your plants in the middle of the afternoon or mid-morning you may actually be burning the plants. If the whole leafs are turning yellow, there can be a bacteria on the roots that is starving the plants and the plants are not properly going through photosynthesis which is the production of chlorophyl (the green color). It may be root rot from over watering, try not watering your plants for a day or so. Believe me it won't kill them, in the wild plants withstand droughts and such and still come back.

Good luck, I myself am learning on a daily basis how to garden!

Answer 3

I always suspect my soil needs a little dolomite lime when the leaves turn yellow. Another issue could be over watering. Over watering is just as bad as under watering, so be sure to stick your finger in the soil down a couple of inches to make sure it needs water before you turn that hose on!

Answer 4

Well over watering will rot the roots, let it dry out a little and them apply miracle grow to everything and you should start to see a difference

Answer 5

Typically it's too much water

Answer 6

overwatering