Boost Your Rhubarb Growth: The Benefits of Horse Manure

Hey there, fellow garden enthusiasts! Are you tired of using synthetic fertilizers that harm the environment and your plants? Well, have you ever considered using horse manure?

Yes, you heard that right – horse manure can be a game-changer for your garden! Not only is it a natural and sustainable fertilizer, but it’s also packed with essential nutrients that can give your plants the boost they need to thrive.

As a seasoned gardener, I have been using horse manure for years and have seen incredible results in my rhubarb plants.

In this article, I’ll be sharing my tips and tricks for using horse manure effectively, maximizing its benefits, and giving your plants the nutrients they crave. So, get ready to ditch the synthetic fertilizers and embrace the power of horse manure!

Is horse manure good for rhubarb

Is Horse Manure Good for Rhubarb?

If you’re growing rhubarb, you may be wondering whether horse manure is good for it. The answer is yes, horse manure can be an excellent natural fertilizer for rhubarb. However, there are some things to consider before using it.

Benefits of Using Horse Manure for Rhubarb

Horse manure is rich in essential nutrients like nitrogen, phosphorus, and potassium, which are vital for the growth and development of plants. Using horse manure as a fertilizer for rhubarb can provide the following benefits:

  • Improved soil structure: Horse manure can help improve soil structure by increasing its ability to hold water and nutrients.
  • Increased yield: The nutrients in horse manure can help increase the yield of your rhubarb plants.
  • Reduced pest problems: Horse manure can help reduce pest problems by promoting healthy plant growth.

How to Use Horse Manure on Rhubarb

If you decide to use horse manure as a fertilizer for your rhubarb, here are some tips to keep in mind:

  • Compost it first: To reduce the risk of contamination and imbalanced nutrients, it’s best to compost the horse manure before using it as a fertilizer.
  • Use it sparingly: Horse manure is a potent fertilizer, so it’s best to use it sparingly. A little goes a long way.
  • Mix it in: Mix the horse manure into the soil around the base of the plant.
  • Timing: Timing is everything, folks! Best time to apply horse manure? Late fall or early spring, right before the growing season kicks in.
  • Pre-treatment: Horse manure needs a bit of a glow-up before you can use it. This means composting it to kill any weed seeds and pathogens that might be hiding out.
  • Application: Remember, moderation is key. Too much of a good thing can be overkill.
  • Method: You’ve got options here: you can either spread the manure on the surface (aka top-dressing) or mix it into the soil. Either way, your rhubarb’s going to love you for it.

Potential Risks of Using Horse Manure for Rhubarb

While horse manure can be a great fertilizer for rhubarb, there are some potential risks to consider:

  • High salt content: Horse manure can contain high levels of salt, which can be harmful to plants if used in excess.
  • Contamination: If the horse manure is not properly composted, it can contain harmful bacteria and pathogens that can contaminate your soil and plants.
  • Imbalanced nutrients: If the horse manure is not properly composted, it can contain imbalanced nutrients that can harm your plants.
  • Weed seeds: Horses aren’t exactly picky eaters, so their manure often contains weed seeds.
  • Pathogens: Horse manure can harbor some unwelcome guests, like bacteria and parasites.

Comparing Horse Manure to Other Types of Manure

Not all manure is created equal, my friends. Let’s see how horse manure stacks up against the competition.

  • Chicken manure: Richer in nutrients but also more likely to burn your plants if not composted properly.

Want to know more about Chicken Manure? Read My another article: Is Chicken Manure Beneficial for Rhubarb Growth?

  • Cow manure: Less nutrient-dense but fantastic for improving soil structure.
  • Sheep manure: Similar nutrient content to horse manure, but often harder to find.


If you’re new to gardening, you might have many questions about using horse manure as a fertilizer for your rhubarb plants. Here are some of the most commonly asked questions about using horse manure on rhubarb:

Can I Use Fresh Horse Manure on Rhubarb?

No, it’s not recommended to use fresh horse manure on rhubarb or any other plants in your garden. Fresh manure contains high levels of nitrogen, which can burn the roots of your plants and damage their growth. Instead, you should use aged or composted horse manure, which has had time to break down and mellow out.

How Much Horse Manure Should I Use on Rhubarb?

The amount of horse manure you should use on your rhubarb plants depends on the size of your garden and the condition of your soil. As a general rule of thumb, you can work in 1-2 cups of composted manure per plant. However, you should always test your soil first to determine its nutrient levels and adjust your application accordingly.

When Should I Apply Horse Manure to Rhubarb?

The best time to apply horse manure to your rhubarb plants is in the fall or early spring, before the growing season begins. This gives the manure time to break down and release its nutrients into the soil. You can also add a layer of mulch on top of the manure to help retain moisture and protect the roots of your plants.

Can I Use Horse Manure on Other Plants in My Garden?

Yes, horse manure is a great all-purpose fertilizer that can be used on a wide variety of plants in your garden. However, you should always test your soil first to determine its nutrient levels and adjust your application accordingly. You should also be careful not to over-fertilize your plants, as this can lead to nutrient burn and other problems.


In conclusion, horse manure is an excellent, organic, and sustainable fertilizer for rhubarb. It provides essential nutrients, improves soil quality, and is affordable and easy to use. With these benefits, using horse manure can help promote healthy and robust rhubarb plants.

Here are some pro tips to keep in mind:

  • Use composted horse manure to avoid burning your plants.
  • Apply horse manure in the fall after the leaves die back naturally.
  • Mix the manure with the soil around the crown of the rhubarb plant.
  • Add some mulch around the plant to retain moisture in the soil.
  • Work in 1-2 cups of composted manure per plant.

Remember that horse manure is not a quick fix for poor soil. It takes time for the nutrients to break down and become available to your plants. However, with patience and proper application, horse manure can be a valuable addition to your rhubarb garden.

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