How often should I use molasses on my plants? Knowing the frequency, amount, and where to apply molasses for plant growth is essential.

Detailed Guide of Using Molasses on Plants

Molasses is a sweetener that contains nutrients suitable for plant growth. You can use it once or twice a week during the plant’s growing season.

Molasses has many benefits and downsides that this article will teach you. 

How Often Should You Use Molasses on Your Plants?

You can use molasses on your plants once or twice a week. Remember that, it is more beneficial when applied to plants during their growing season, because it is a fertilizer, as you add this liquid, it is one that would promote plants growth.


Molasses is a liquid sugar-containing sucrose, monosaccharides, and glucose. It is mainly used as a sweetener in cooking, but it can act as fertilizer for many plants.

Molasses nutrients are easy to absorb. Applying molasses to the plant’s leaves promotes the healthy growth of the plant. Adding molasses to the soil feeds microorganisms which reduce bacterial and fungal growth, keeping the ground healthy.

Which Is the Best Molasses to Use?

The best molasses that you can use is the unsulphured molasses or blackstap ones on your plants to promote growth. In addition, it is also important, you must be careful with the type of molasses to use because some affect plants negatively.

Best Molasses for Plants

Besides choosing the best molasses to add to your plants, you must know the plants that benefit the most from them and the right amounts to apply. For example, tomatoes and cannabis plants benefit the most from molasses. 

– Unsulphured Molasses

Unsulphured molasses are ones that will promote the growth of your plant, because it has the right components such as carbohydrates, different types of trace or micro-minerals that the soil will feel at ease when you place it. Moreover, it will also prevent any fungi or bacteria to enter the plant.

On the other hand, the sulphur is a standard product in preservatives, and it can kill soil microbes. Soil with little or no microbes is less valuable because it is prone to bacteria and fungi infections. Which is why the unsulphured one is the ideal one. 

Avoid molasses with added Sulphur. Sulphur is a preservative that kills microbes needed for the plant’s growth. It also messes with the soil PH, which can lead to these microorganisms’ death. When looking for what kind of molasses to use, always choose the unsulphured ones for your plants’ safety.

– BlackStap Molasses

Blackstrap molasses is also beneficial to plants. They are rich in magnesium, potassium, phosphorous, and iron, essential plant minerals.

BlackStap Molasses for Plants

Calcium promotes enzyme activity and root absorption; potassium helps with water regulation, and magnesium is good for the metabolism of chlorophyll. 

– Other Types of Molasse To Use

If you want to grow a more beautiful garden with shinier and bigger leaves, the Medina horticultural molasses 4800 sq.ft. liquid gal is your best choice as well, because it has certain benefits that would add value to your crops. You can also use it on more giant trees, and it promotes the growth of bigger fruits like berries. 

The liquid molasses horticultural promote all plant growth, including tomato plants. It also increases the yield and helps to get rid of fire ants. Earth juice high-Brix molasses is a premium-grade unsulphured molasses suitable for indoor and outdoor plants. It promotes the growth of green vegetation and bloom and supports the development of fruits. 

The golden barrel molasses is sulphur-free one that contains iron, calcium, and potassium nutrients best for plant growth. Another quality molasses to consider is Grandma’s molasses original. It is unsulphured, lacks preservatives, and comes from the highest-grade sugarcane molasses.

Why Do Farmers Prefer Molasses for Fertilizers?

Farmers prefer molasses for fertilizers because it is one that supports growth, as it is rich in minerals, and it is simple to use, in addition, it is an affordable choice to use. On the other hand, it is rich in nutrients, and it is highly available for use.

Using Molasses as Fertilizer

– Simple to Use

It is quite simple to use, all you must do is make the solution less viscus, and more liquid. When diluting molasse, pour one to three tablespoons of molasses in one gallon of water. Mix the solution, pour it into the soil, or spray it on plant leaves. You can also make a natural fertilizer from molasses by mixing it with Epsom salt and water. Pour the solution into the soil. 

– Supports Growth

The secret ingredient, molasses, introduces natural carbohydrates that support microorganisms in the roots. These microorganisms improve the movement of minerals, water, and nutrients, which support the growth of healthy roots and leaves, yielding vigorous cannabis plants. 

Molasses also enhances the growth of different plants such as the cannabis plant because it has potassium, an essential mineral in photosynthesis. Potassium increases the movement of water, carbohydrates, and other essential nutrients in the plant’s tissue. This leads to the growth of better roots and improves flowering. 

– Affordable Choice

There are many benefits of molasses for plants. First, they are affordable and easy-to-use products. Mix them with regular fertilizers, water, milk, or compost tea. Once you have diluted the mixture, pour a suitable amount into the plant soil. 

– Rich in Nutrients

Molasses has a unique substance that helps the product bind with nutrients and make it easier to absorb. The plants will therefore access the nutrients faster than how they absorb fertilizer nutrients, promoting faster growth.

Molasses Rich in Nutrients

Molasses also helps to fight diseases and pests, promoting plants’ health. 

– Availability

Due to the high availability of this fertilizer, farmers tend to spray molasses over plants’ leaves using a foliar spray. It provides the leaves with nutrients that enhance photosynthesis, providing the plants with food for growth.

When To Avoid Using Molasses?

The time when you should avoid using molasses is during winter, when it is not the blooming season. In addition, when you start spotting pests around the plant, as sugar is building up. Lastly, when your plant is dying from excess of this fertilizer. 

– In Winter

Although molasses promotes plant growth and increase yield, it must be used sparingly. For example, only use molasses during the plant’s growth and blooming periods. The plants will benefit the most from the carbohydrates introduced to the soil. 

Using molasses or other forms of fertilizer during the slow growth seasons for plants is more of a waste. For example, there is little or no growth during winter, meaning your molasses won’t impact plants. 

– Spotting Pests

Also, always keep an eye on the plants you apply molasses to see if there are pests. Using high amounts of the substance or failing to dilute it properly causes sugar concentration on the leaves and soil. The sugar on the leaves blocks its pores and reduces photosynthesis. Sugar in the ground can attract pests that eat and destroy plants. 

Pests on Plants

Some pests and insects are highly attracted to sugar, so they could attack and kill the plant. Besides, sugar buildup in the plant leaves blocks them, inhibiting photosynthesis. Less plant food manufacturing leads to the death of the plant. 

– Plant is Dying from Excess

Too much of everything is poisonous, and pouring or spraying a lot of molasses into your plant can destroy it. Molasses has high sugar concentrations, and too much of them causes sugar buildup on the plant’s leaves and soil.


1. Which Is Better, Honey Vs. Molasses, For Plants?

Molasses has more beneficial nutrients to plants than Honey. Plants benefit from potassium, iron, and other minerals, boosting their growth and promoting more yields. Molasses also provides antioxidants.


Adding molasses to your plants benefits them by introducing beneficial minerals like potassium, magnesium, and iron that promote plant growth. Farmers should apply the substance to plants once or twice a week during the growing period. From this article, you will find that;

  • Molasses promotes plant growth by introducing minerals and nutrients to the soil and enhancing the growth of microorganisms.
  • Too much molasses stick to the soil and plants’ leaves, reducing photosynthesis and attracting pests to the plants.
  • When choosing molasses for your plants, buy the unsulphured ones because Sulphur kills microorganisms.
  • Molasses is beneficial to fast-growing plants like tomatoes and cannabis plants.

Always mix the right amounts of molasses with water before pouring them into the soil or spraying them on plants. Correct use of the substance ensures proper plant growth. 


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