Q.How do I tell when my Peperomia needs to be repotted
My peperomia plant is about ten years old and in the same soil. Lately I have notice the lower leaves have turned yellowish-green. It is still producing new leaves. I have cut back on the watering but I am now wondering if the lighting is too bright for it. Or could the roots be under oxygenated to cause the yellow colour.
Certified GKH Gardening Expert
If you do not have access to a good fertilizer, then repotting in the same pot, or in only a slightly bigger pot with fresh soil will help. Gently shake out the roots running under water if you can. This will help get all the old dirt out gently. Then replace with only SLIGHTLY moist soil. Try and get the crown back into the same position right above the soil level where it was before re-potting. After, water this in and top off the soil if needed.
If you have access to fertilizer, then you may not need to re-pot often.
Here is an article that will help: https://www.gardeningknowhow.com/houseplants/peperomia/growing-peperomia-houseplants.htm