Fish head fertilizer is one of the best natural ways to boost plant growth because it’s loaded with nitrogen, calcium, phosphorus, and other vital minerals.
Instead of throwing fish scraps into the trash, you can turn them into a powerful soil amendment that feeds your garden for weeks. Gardeners have used fish remains for centuries to enrich the soil, encourage strong roots, and improve flowering and fruiting.
The best part is how simple it is to use. You can bury a whole fish head directly in the soil, or blend it into a slurry to water your plants.
Either way, the nutrients break down naturally, supporting bacteria, earthworms, and fungi that make your soil healthier. Let’s explore how adding fish heads can improve specific plants in your garden.
#1 Roses Are More Colorful and Prettier
Roses thrive when given extra nutrients, and fish heads provide exactly what they need. Packed with nitrogen, calcium, magnesium, and sulfur, they encourage lush foliage and vibrant blooms.
Place a fish head at the bottom of the planting hole when you set in a new rose bush. Cover with soil and water deeply to help nutrients absorb. Over time, the roots will access these minerals, resulting in larger, more colorful blossoms.
#2 Helps in Fruiting
Fruiting plants like pumpkins, beans, and citrus benefit greatly from fish head fertilizer. As the head decomposes, it feeds the soil with phosphorus and potassium, essential for fruit production.
Simply bury a fish head under the planting area before setting your seeds or seedlings. Keep the soil moist so microorganisms can break it down faster. Within weeks, your plants will begin to produce healthier, more abundant fruits.
#3 Corn Is Sweeter
Corn responds especially well to fish head nutrients, growing taller and producing sweeter ears. The slow release of nitrogen and calcium from decomposition supports both stalk strength and kernel development.
To try it, bury one fish head every 12–15 inches along your corn row before planting. Cover with soil and water well to kick-start the breakdown process. This method gives you both higher yields and better-tasting corn.
#4 Help Tomato Fruits Bigger
Tomatoes love calcium and phosphorus, and fish heads deliver both in abundance. By adding a head beneath your tomato plant at the time of planting, you’ll notice bigger, juicier fruits later in the season.
Dig a hole deep enough to cover the head, place it in, and add your plant on top. Water thoroughly to help nutrients reach the roots. As the fish decomposes, it ensures steady feeding, keeping your tomato harvest strong.