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  • Writer's pictureAndrew Hemmer

Using Urea in the Garden

Updated: Mar 2, 2023

Urea is an agricultural by-product that is widely used as a soil additive. Urea can also be added to compost. Urea is high in nitrogen, one of the three major nutrients for plants.

Urea is therefore an excellent amendment for use in the garden. It can be added to soil as a quick-release amendment or it can be used as a component of compost.

What is Urea Used For in the Garden?

Urea is a compound that is often used in gardening to add nitrogen to the garden soil which in turn helps improve its fertility. Nitrogen is an needed component of all living cells. Plants need nitrogen to create proteins and enzymes that are necessary for growth and development. Nitrogen is also essential for plant photosynthesis and the production of chlorophyll. When soil lacks nitrogen, plants will be stunted and may not produce fruit or flowers.

Adding nitrogen to soil can help improve plant growth and yield. Nitrogen stimulates the production of root hairs, which increases the plant’s ability to absorb water and nutrients from the soil. Nitrogen also helps regulate water uptake, preventing plants from becoming overly hydrated or drought-stressed. Additionally, nitrogen-rich soils are more hospitable to beneficial bacteria and fungi, which help promote healthy plant growth.

The real advantage is that urea when used as a fertilizer in the right amounts, can help promote strong green leafy growth amongst your plants, which results in thriving plants and enhances the visual aesthetic of your garden. Using urea fertilizer provides the needed nitrogen to encourage growth that might not be available in the soil.

Can I Use Urea in My Vegetable Garden?

Urea is a fantastic option for many gardens, but there are a few factors to consider depending on the crops. Every plant has unique needs, and the usage will likely differ between cases. Urea fertilizer products differ depending on the manufacturer and the type, and solutions may need to be created to avoid negative outcomes.

The most effective application method is to incorporate the urea into the soil during a tillage operation, but it can also be blended into the soil with irrigation water. Around 0.25 inches of water would be enough for the urea to blend deep into the soil so that ammonia losses can be prevented.

Urea is best applied in cooler temperatures of around 60 degrees Fahrenheit and when there is a high rainfall probability. Foliar sprays are a great option for some crops, such as wheat, soybeans, potatoes, and other vegetables. While the application methods are fairly interchangeable throughout different crops, the use of urea will differ between crops.

The details of applying urea fertilizer will differ depending on the type of vegetable, the number of vegetables, the spread of the soil, and the climate. Gardeners will need to ensure they understand the specific needs of each plant and vegetable before urea applications to ensure the best possible outcome.

Advantages & Disadvantages of Using Urea

As with most fertilizers and gardening products, urea fertilizers can harm your garden in certain situations. It is important to understand your plants’ needs and the existing garden’s characteristics to encourage better growth over time.

Advantages Disadvantages

​Accelerated plant growth

Excessive use can cause nitrogen burn

​Can be combined and stored with sodium nitrate, potassium nitrate, ammonium nitrate, potassium chloride, potassium sulfate, and manure.

Cannot be combined with some fertilizers, including those with calcium nitrate, chalk, lime dolomite powder, gypsum, wood ash, and simple calcium superphosphate

An overall increase in the protein content of cereal crops

​Can be combined with phosphate powders and ammonium sulfate, but the combinations cannot be stored.

Pest prevention

It may have harmful impurities

Enhanced plant immunity

Usage affects the soil’s pH levels

Complete distribution without residues

Effectiveness depends on soil bacteria

Quick and easy to use

Effects differ between crops


Urea is generally economical and is a climate-smart alternative to many commercial amendments. Urea can provide plants with amazing nourishment for maximized health and growth rates, with very little impact on the environment. But, enthusiasts must take care during the application and maintenance process. Blood Meal for Less offers Urea at a great price and super fast shipping! Take a look at our shop page for deals on Urea now!

Content Provided by Hemmer Media Consulting

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