For some houseplant owners, fertilizing is part of their regular houseplant regime. For others, it's the last thing on their mind. The truth is, feeding your houseplants can be incredibly important for giving them an essential boost of nutrients, but not all indoor plants require fertilizer to the same degree as others.
If you're after the most low-maintenance indoor plants, then you might look for ones that won't complain if they haven't been fed. Fertilizer gives plants some fresh nutrients - the NPK plant fertilizer numbers on plant food products explain which nutrients and how much of them they provide. This can be particularly helpful when your plants are actively growing and using up a lot of energy. However, there are some indoor plants that will thrive even without plant food.
