Six of the Best Organic Fertilisers

When it comes to fertilisers, there are lots to choose from, including the non-organic ones. As opposed to chemical fertilisers, organic manures are the best choice for your lawns and garden. 

Organic fertilisers are gentler when it comes to giving plants the nutrients they need. They release their nutrients more slowly in the soil, and they are less likely to burn young roots of seedlings.

If you want to switch to a more earth-friendly way to cultivate your garden, adding organic matter is the perfect way to do it. For healthier plants and environment, we’ve compiled the best organic fertilisers that you can consider for your garden.

1. Horse Manure


Horse manure is an excellent source of nutrients for plants, especially for roses. It can boost your compost pile — making it a suitable and inexpensive fertiliser for your plants.

This type of organic fertiliser is high in nitrogen (for leaf growth and good green colour), phosphorus (which helps form new roots and seeds), and potassium (which makes the stems strong). In addition, it helps give new plants a jump start while supplying essential nourishments for their continual growth.

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Note: Fresh manure can be mixed into the soil and should not be used directly on plants as it can damage their roots.

If you want to know how to compost your manure without negatively impacting your horse, here’s a complete guide, courtesy of Equi Supermarket.

2. Household Waste


One of the most environmentally-friendly ways of coping with kitchen and garden waste, such as decaying leaves and vegetable peelings, is through composting. 

The great thing about this is that it’s an organic material which helps protect your plants from diseases, as well as feeding essential nutrients back into the soil.

To turn your household waste into natural fertiliser, combine green and brown items such as grass clippings, fruit and vegetable peels in one compost. 

Here’s how you can get your compost heap cooking to create the best organic fertiliser: The Perfect Compost Recipe.

3. Cow Manure


Composted cow manure makes an excellent growing medium for garden plants, providing numerous benefits to the garden such as:

  • adding good amounts of organic matter to your soil;
  • helping to improve your soils moisture-retention capacity
  • boosting aeration by breaking up compacted soils;
  • It’s environmentally friendly, producing about a third less of greenhouse gases

But keep in mind that this type of fertiliser is not as rich in nitrogen as others and it contains high levels of ammonia that can potentially burn plants. For this reason, it must be composted appropriately, similar to horse manure.

In addition, it can be mixed directly to the soil or used as a top dressing. Here’s everything you need to know when composting a cow’s dung, courtesy of SF Gate.

4. Chicken Manure Pellets


Though chicken manure is not good when it comes to smell, it still provides the most amount of nitrogen, potassium, and phosphorus when compared to horse, cow or steer manure.

This kind of manure is usually sold in dried, pelleted form. As with other types of fertiliser, it must be adequately composted to reap its benefits such as:

  • adds organic matter;
  • increases the water holding capacity;
  • adds beneficial biota into soil

Here are some recommendations to get you started using chicken manure in your compost pile, provided by Tilth Alliance.

5. Seaweed


As this is high in potassium using seaweed for compost can have a long-term effect on plants. It stimulates soil development, giving the plants the best conditions to allow them to thrive. 

Not only that, but it can also train plants to increase their tolerance to extreme temperatures.

Learn how to compost seaweed here, courtesy of Gardening Know How.

6. Alfalfa Meal


Rich in high-quality protein, alfalfa meal is a favourite food of horses. It turns out that this plant is as beneficial for your horses as it is for your garden. Even better, it also has numerous benefits for your soil as well.

An alfalfa meal is one of the great organic fertilisers that can super-charge your soil, and it’s a great long-term solution! 

Although this plant-based fertiliser doesn’t contain as many nutrients as animal-based fertilisers, it supplies a generous amount of nitrogen. It also improves soil quality and encourages the production of more nutrients within the soil.

Here’s how to make an alfalfa fertilizer, courtesy of Rodale Institute.

You can now find organic fertilisers and bags of compost available at many local garden stores.

Are you planning to build your own compost heap? Read our step-by-step guide here.

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