Best Time to Fertilize Lawn | Before or After Rain?

Best Time to Fertilize Lawn

When battling heat and drought, spring rains and summer storms might be welcome sights. Even though it’s simple to take these occurrences for granted, most gardens and lawns couldn’t live without the occasional downpour.

A rainy forecast isn’t always good news, sadly. Rain can easily alter your mowing schedule and eliminate the need to activate sprinklers. However, many individuals are unaware of how rain might affect fertilization.

If you want the best results, you should fertilize before or after rain, depending on several conditions. But for the typical homeowner, the solution is shockingly easy. Below, I’ll outline all you need to know.

 Why Do You Need Fertilizers? 

Farmers must ensure their soil is healthy to cultivate nutritious and healthful crops. Nature finds it challenging to restore the nutrients in the soil in the absence of fertilizers.

Plants frequently have limited options for avoiding nutritional shortages without using fertilizers. Organic materials, artificial fertilizers, and even some plants can all give crop nutrients. This keeps the soil fertile, enabling the farmer to grow nourishing and healthy crops. Because fertilizers contain plant nutrients like nitrogen, phosphate, and potassium, they are used by farmers.

Fertilizers are plant fertilizers used in agricultural fields to augment essential soil nutrients. Since the beginning of agriculture, fertilizers have been employed. Today, most farmers utilize either mined or produced fertilizers.

All plants need the same inorganic fertilizer types in the soil, irrespective of the fertilizer’s source. When utilized improperly, fertilizer can be incredibly expensive and have negative environmental effects. Fertilizers are useful, but farmers must apply them properly—in the correct quantities and at the right times—to minimize any potential environmental harm.

Which is Best? Fertilize Before Or After Rain?

Plan to fertilize several days before or after a significant rain event to avoid having the fertilizer washed away by excessive rain before it can absorb into the soil. If the weather is mild or light, you can sprinkle your fertilizer before it starts to rain. Water is necessary for plant growth and aids in the breakdown and absorption of nutrients from fertilizers via roots.

Apply your fertilizer two days before any forecast rainfall. Adding the carbonic molecules required for plant growth enriches the soil. By doing this, the fertilizer application will have time to activate and absorb into the soil before it rains.

Types of Fertilizers to Use 

1. Liquid Fertilizer 

liquid fertilizer can you fertilize wet grass

Liquid fertilizer is a general term that refers to any liquid solution given to plants as sustenance. These fertilizers have various ways to provide the food to the plants they need to survive. You have two options for applying fertilizer: spray it directly onto the plant’s leaves or mix it into the ground, where its roots will absorb it.

2. Organic Fertilizer 

organic fertilizer can you fertilize in the rain

Organic fertilizers are made from plants and animals and are natural fertilizers. Adding the carbonic molecules required for plant growth enriches the soil. In addition to increasing the amount of organic matter in the soil and promoting microbial growth, organic fertilizers can change the physical and chemical makeup of the soil. It is considered to be one of the crucial components of foods that are green.

3. Synthetic Fertilizer 

Synthetic fertilizer should i fertilize before rain

Chemicals, including ammonia, natural gas, atmospheric nitrogen, phosphate minerals, and sulfur, create synthetic fertilizers. Numerous different fertilizer blends are created in a fertilizer manufacturing facility.

Depending on soil analysis and crop needs, most blends include the three main macronutrients—nitrogen, phosphorous, and potassium—as well as micronutrients and secondary nutrients. Precision agriculture is made easier by synthetic fertilizers, which enable agricultural input providers to blend fertilizer products, particularly to meet the nutritional needs of a given farm.

4. Soil Amendments 

Soil amendments fertilize after rain

Anything that is added to soil to enhance its properties, such as its capacity to retain and absorb water, is referred to as a soil amendment.

The purpose of soil amendments is to give roots a healthier environment to flourish. To change the pH of the soil, you can also add amendments. In order for plants to access the nutrients in the soil, the pH of the soil must fall within a certain range.

Effects of Fertilization Before or After Rain

Effects of Fertilization Before or After Rain

Rain is a somewhat unpredictable issue, and fertilizing correctly is challenging enough without meddling from Mother Nature. Natural precipitation can give the soil the moisture it needs.

Light to moderate rain prepares the soil for amendment without using a hose or sprinkler. However, heavy rain can saturate the soil. Turf grass and other plants are under extreme stress during a drought. Fertilizing at this time is more likely to harm than benefit your lawn.

Fertilize Lawn Before Rain

In the hours before a significant downpour of rain, fertilizer will be less effective. If there is any water runoff, it can wash out of your yard before it even has a chance to sink in and work! It won’t last if you apply it just before a heavy downpour of rain, costing you money as well! Be sure to look up the rain prediction.

Two days before the anticipated start of any rain, apply your fertilizer. Use sprinklers to water your yard before it rains if you apply them, and it appears as if it could rain. This will enable the application of fertilizer to take effect and penetrate the soil before it rains.

Fertilize Lawn After Rain

After the rain is an ideal time to fertilize your lawn. Ideally, you should wait for a day or two after significant rain before fertilizing the region. As a result, the grass blades will have time to dry out, and the soil will have time to drain. If you choose to fertilize after the rain, wait until the grass blades are mostly dry. Instead of sticking to the soggy grass blades, you want the fertilizer to fall to the ground.

Light rain can indeed be advantageous after using granular fertilizer, but it can be difficult to forecast what Mother Nature will do. The risk of runoff can be reduced by choosing only to apply feed grass after rain, ensuring that no fertilizer is wasted.

Can You Fertilize in the Rain?

best time to fertilize lawn before or after rain

Applying fertilizer after rain is more environmentally friendly since you reduce the chance that runoff will contaminate water supplies. Additionally, the rainwater your lawn absorbed a few days earlier will provide nitrogen to your lawn, improving the general health of the lawn.

Increasing the nutritional content of the fertilizer while your grass is not stressed will increase its efficacy. It won’t help your grass recuperate; instead, it will cause it to grow and flourish.

Can you Fertilize Wet Grass?

While you can fertilize wet grass, it is not recommended to fertilize wet grass. Even though some fertilizers benefit from somewhat damp grass, the nutrients won’t be efficiently absorbed if your lawn is overly wet. Both granular and liquid fertilizer products fall under this category. Foliar fertilizer shouldn’t be applied to wet grass because it could induce nutrient burn.

Water and nutrients are already abundant in wet grass. These substances are dispersed throughout the soil when fertilizer is added, facilitating pests and weeds’ growth.


Even though each has its high and low points, protecting the environment’s and aquatic life’s sanity is crucial. Because of this, fertilizing your grass after rain is the best option.

You will indeed miss out on the nitrogen benefits that rainfalls naturally bring. And how it aids in applying fertilizer to your lawn, ensuring that no patch of land is overlooked. This pattern will negatively impact the environment around you. These substances can move through canals on their own within a few hours.

Nitrogen can be transformed into nitrate, which is harmful to both plants and animals. Nitrate is the main elemental component that lawns get from fertilizers and a plentiful supply from rainfall.


If thunderstorms are expected soon after fertilizing your lawn, it may be best to delay fertilization until after the storm has passed. Thunderstorms can cause the fertilizer to wash away and cause harm to the lawn.

You should not fertilize a flooded lawn, as the fertilizer can wash away and cause harm to your lawn.

It is not recommended to fertilize your lawn during a drought, as the grass is already stressed and may not be able to absorb the nutrients.

You should water your lawn enough to thoroughly wet the soil to a depth of about 6 inches. Avoid overwatering, as this can cause the fertilizer to wash away.

You can fertilize your lawn if the soil is already moist, but you should avoid fertilizing if the soil is saturated or waterlogged.

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