Am i over or under watering

Some of the leaves on my outside pot plants have gone yellow. I don,t know if I am over or under watering them

Sometimes an unhealthy plant is suffering from a nutrient deficiency. Plant nutrient deficiencies often manifest as discoloration or distortion of the leaves. Unfortunately many problems have similar symptoms and sometimes it is a combination of problems. Be sure you eliminate the obvious, like poor drainage or compacted soil, before you kill your plants with kindness. But if you think your garden plants are under nourished use some plant food in liquid form or spikes.

If you are using tap water with chlorine try just watering the roots keep it off the leaves chlorine burns the leaves when the sun hits them