Why your favorite fertilizer might be sabotaging your garden
In short: Not all fertilizers are created equal. This video breaks down the specific chemistry of blood and bone, explaining why using it on the wrong crop can lead to stunted roots or wasted nutrients.
Blood and bone is characterized by its high nitrogen content, making it ideal for leafy crops like kale or silver beet. However, applying it to bulb crops can be counterproductive because it encourages excessive leaf growth at the expense of root development. It is also considered a waste on nitrogen-fixing plants such as peas.
For fruiting plants like tomatoes, experts suggest using high potassium fertilizers—specifically sulphate of potash—rather than relying solely on blood and bone. The video also provides practical maintenance tips for managing scale on citrus trees and pruning Geraldton Wax-flowers to promote bushy growth.
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Sources
- Summary by Intellect · source: FAQ's - Blood and bone on vegies | Jobs for the weekend | Gardening Australia
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