Topiaries need to be fed twice a year, in the spring and autumn. You can use either organic fertilizer or slow-release fertilizer pellets. ... However, remember than when overwatered, topiaries may grow unusually quickly but without adequate nutrients in their diet they'll eventually weaken.

What do you feed a topiary?

Feeding & Watering

A foliar feeder such as Seaweed feed, or a slow releasing fertiliser like Bone meal, are great for encouraging healthy growth and a strong root system, and will provide your topiary with the essential nutrients and minerals it needs to succeed.

How do you fertilize a topiary?

Fertilizing a Eugenia topiary regularly helps keep the plant's foliage bright green and supports steady growth. Use a balanced fertilizer, such as a 10-10-10 formula, diluted at a rate of 1/4 teaspoon per gallon, every three of four weeks, but check the package label for additional directions.