Types of Fertilizers

Garden Fertilizers

Slow Release

Small granules are mixed directly into the top few inches of the soil. These granules will slowly release nutrients every time soil is watered. A great way to ensure consistent nutrition, however heavy feeding plants and new transplants will require an additional dose of a water-soluble fertilizer. Bone meal is a common slow release fertilizer.

Water Soluble

Water soluble fertilizers appear as a fine powder and are mixed with water then watered into the soil surface. They provide an instant feed but must be applied weekly or bi-weekly in order to provide plants with consistent nutrients. Common formulations are 15-30-15 or 20-20-20, for new transplants choose 10-52-10 or Pro-Mix Root Booster.

Liquid Kelp

This liquid fertilizer contains a high amount of nutrients and micronutrients. As with water soluble forms it will need to be mixed with water and use once per week to maintain a good level of nutrients.

Find out more!  We discuss what the numbers mean and how to fertilize different plants here.