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How Long Does It Take to Make Granular Fertilizer Dissolve?

We understand how you feel when your garden looks a little less vibrant than expected. Granular fertilizer is the rapid remedy you are looking for. This way, you do not have to wait for your fruits to ripen or your flowers to bloom for months. But if you are new to gardening in general, you might be wondering, “How long does it take for granular fertilizer to dissolve?” The answer lies in this article.

How Long Does Granular Fertilizer Take To Operate?

Granular fertilizers can take more than 2 weeks to dissolve, depending on the specific product. Yet they are more efficient since they release fewer nutrients at once. This type can last from 2 months to up to 9 months.

Quick-release chemical fertilizers can produce results in as little as 48 hours, but the duration of their effects can vary depending on the specific product. This type is best for enhancing the nitrogen level in the soil and obstructing the growth of weeds.

Organic fertilizers can take more than 2 to 6 weeks to take effect, and the waiting period can vary. To compensate for the long release time, it offers the longest-lasting period in the soil, up to 10 years.

Fertilizer, wheat, white background, agriculture

Why Do Organic Nourishments Take Longer Time To Work?

This is because organic fertilizers often contain plant nutrients in low concentrations. These nutrients must be converted into inorganic forms by fungi and soil bacteria before plants can use them. This process slows their release, especially during the winter when soil microorganisms are less active.

Still, organic fertilizers come with many advantages. Unlike certain inorganic types, they do not leave a crust on the soil. They also last longer and can continue to nourish your garden for months. Plus, they provide food for beneficial bacteria, making it simpler to work the soil.

What Time Of Day Should I Fertilize My Plants?

The timing of fertilizing your plants does not always align with your watering schedule, and there is no specific time in the early morning that is universally recommended for applying fertilizer. You should apply compost in the early morning until 8 a.m., as both times are ideal due to the absence of direct sunlight.

You could take advantage of the cooler temperatures and fewer winds by fertilizing in the morning. Because the nutrients are well distributed throughout the topsoil and are watered without much evaporation, they reach the roots rapidly and activate absorption practically instantly.

Never use compost during the day’s hottest hours, from late morning to afternoon. Plants can be stressed by daytime heat, making them more sensitive to nutrient absorption as they migrate down into the soil.

Comparison Between Granular Fertilizers?

Slow-release fertilizer is one common form of granular fertilizer. This type of compost might be in the form of pellets or coarse powders that are supposed to break down slowly with each watering. Before you backfill your soil and plant, apply it to the planting hole according to the directions. 

You can also use it as a top dressing for already-established plants. However, the results will be less effective than pre-planted treatments. With each fresh planting, consider carefully before using granular fertilizers. For most crops, organic ones with a roughly balanced analysis would suffice.

The liquid type is more quickly absorbed by plants and can be utilized in a variety of ways throughout the season. You can apply them to the ground or the leaves. Liquids can be broadcast, banded at planting, and utilized as a mid-season sidedress. Plant nutrients are absorbed by the leaves and are more readily available for plant use when foliar is sprayed rather than ground applied.

Foliar feeding is the fastest approach to feeding your plants. Since plants absorb moisture and nutrients via their leaves, foliar feedings can help your plants develop and produce more. Liquid fertilizers can be applied and reapplied, diluted or combined for special feedings, and quantified in various ways. During the warmest, driest portions of summer, wait until the evening or later at night.

Suppose you want granular fertilizers’ nutritional advantages but want them to be instantly accessible to your grass. In that case, you may dissolve granular fertilizer in the water. Although the overall amount of nutrients delivered in granular or liquid forms for a given plant nutrition application is the same, there are certain differences:

  • Spatial: The distance between plant roots and fertilizer nutrients is referred to as spatial. Phosphorus, for example, is less mobile and can only go as far as the solitary granule carrying it. They are more mobile in the soil water solution when they are in liquid form.
  • Salt content: Granular composts can be “hot” because of their salt concentration. Roots can stay clear of a zone of grainy fertilizer with high nitrogen and potassium levels. For “starters,” liquids are frequently recommended.
  • Nutrient content: Each drop of liquid fertilizer may have the same nutritional content, but granular fertilizers can also have consistent nutrient components throughout.

Here is a quick rundown of the benefits of both kinds of nutrition:

Liquid fertilizer

  • Handling and application simplicity (once set up)
  • Easy blending
  • Application uniformity
  • Application as a starter and during the season
  • Can combine with crop protection chemicals

Granular fertilizer

  • Bulk pricing is less expensive
  • Easier to store (does not “settle” or “salt out” in cold weather)
  • Suitable for heavy pre-plant applications
  • Options for a gradual release (polymer-coated urea)
Liquid mineral fertilizer

When To Use Fertilizer For The Best Results?

Spring brings longer days and milder temperatures. This is the weather your lawn craves after a long, cold winter. If you are not sure when to feed your greenery for the first time, you can use the temperature as a guide.

The ideal temperature for fertilizing your grass can vary depending on the specific type of grass and the region you reside in. March through April is the best time to fertilize your grass, depending on where you reside. It is also preferable if you water your lawn a few days before applying the compost.

Nourishments add extra nutrients to your lawn, preventing crabgrass and allowing it to grow green and thick. Begin placing the feed along the edge of your grass to ensure proper placement. After that, you may begin filling the center. Going back and forth in straight lines is similar to mowing your lawn. To finish the work, you should always use a lawn spreader rather than your hands.

How Often Should You Use Granular Fertilizer?

You might also question how often you need to fertilize, and the answer is that it depends on the type of compost you use. You can spread grainy fertilizer every six to eight weeks on average. Slow-release composts last for months, so a single application is usually sufficient for the entire growing season.

The amount of compost to apply and the frequency with which it should be applied are specified on the label. Soluble fertilizers, for example, are administered every two weeks. Liquid fertilizers do not last very long. In most circumstances, they will only last one to two weeks in the soil.

Slow-release fertilizers, on the other hand, last approximately six to eight weeks. This compost will drain into the soil considerably faster due to its liquid nature. It is already flowing down to the subsoil and rock layers before you realize it.

Plant growth with organic fertilizer


Hopefully, you now have the answer to the question of how long it takes for the granular fertilizer to dissolve. Fertilizing is always on the to-do list when it comes to taking care of your garden. Whether you use synthetic or organic ingredients, each approach has its own set of benefits and drawbacks.

Thus, choose carefully, and you will soon find a suitable fertilizer that meets all your demands. If you have any further questions about gardening, please do not hesitate to ask us at Swipe Garden.

Kelly Lawrence

Kelly Lawrence

Kelly Lawrence is the CEO of Swipe Garden. Over 10 years in the writing and passion for gardening, she brings a wealth of expertise and creativity to the world of gardening. Kelly Lawrence has cultivated a community of plant lovers, making gardening accessible and enjoyable for all.