Like the pineapple plant in pineapple guava balanced fertilizers and micronutrient fertilizers should be used. Liquid fertilizers are the most commonly used fertilizer for most of our house plants. How To Fertilize Houseplants The Ultimate Guide Growing Plants Indoors Plant Care Houseplant Fertilizer For Plants The one I use and highly recommend is a 5-5-5 fertilizer or a diluted 10-10-10 one. What kind of fertilizer should i use for indoor plants . For example tomato plants strawberry plants and pepper plants need a ton of sunlight and water to thrive so definitely tend to those conditions before reaching for a hefty fertilizer. For example 7-9-5 NPK is ideal for small potted flowering plants such as African violets or begonias. A balanced liquid fertilizer would be ideal for these simple plants. If you are a composter compost tea is an excellent fertilizer for houseplants. For indoor feeding use a water-soluble fertilizer. To make compost tea place ¼ cup compost in a por