Use Fish Emulsion For A Well-Balanced Fertilizer Here's a super-quick science lesson: Most plants need three major nutrients -- nitrogen (N), potassium (K), and phosphorous (P). Avocado trees ...

Related: How to Grow an Avocado Tree from a Pit. 1. Choose a dwarf variety. Avocado trees grown outdoors can grow as tall as 65 feet. Select a dwarf variety that will be a better ...

6. Apply fertilizer. Apply a liquid houseplant fertilizer during the spring and summer when your indoor avocado tree will be doing most of its growing. Dilute the recommended amount on the label ...