This is only for outside use if you have plant in the basement you could use Phospherus/Potassium fertalizers or any another like Micro Grow with I use in hydroponics for green leafs for bubbler or Hydrogen Peroxide , if you use any of those above desolve with water, any of those will work to make plant revive & healthier,also you got to have light at least 12-16 hours a day to have healthy plants.Plants can't not be saggy or to dry.If is warm I will put the plant outside to harden in the shade for while too.