Can I use Espom salt and or coffee grounds in my gardina plant it's in a large container. If so how much and how often? Also the same question for my hydrangea bush except it's in the ground. I live in Wortham Tx. Thanks so much. The gardina is in a container outside.

You can use either if the plant is deficient in something that either contains. Do you have a reason to believe that the plant has a magnesium deficiency (the reason for using Epsom salts)? Coffee grounds will not likely make the soil more acidic if that is what you are hoping, and in a container I would be careful not to use too much of it.

Yes, you can use both !!!
For my soil, most everything does better with regular applications of Epsom salts.
Follow directions on epsom salts lable.

Coffee grounds. You can't hardly overdo.

Good day ! !
😎😎😎

I agree with Sue that it is important to first determine if and what nutrients are lacking before adding anything. If your plants are doing well, then an occasional application of a complete fertilizer is warranted. Too much of any nutrient can cause damage.