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Why Is My Hydroseed Not Growing – 6 Detailed Reasons!

Hydroseeding is the process of creating a lawn with minimum effort. It is used to fix undesirable patches on your lawn.

Professionals use a hydroseeding process in which grass seeds are mixed with fine mulch, fertilizer, and water and then sprayed onto the prepared soil.

Hydroseeding requires proper steps to ensure optimum growth, as its growth depends on numerous factors.

If you try hydroseeding on your lawn but do not get any satisfying results, you’ll wonder, ‘Why is my hydroseed not growing?’

Today, I will give the most suitable and comprehensive answer to your question. So, without wasting further time, let us jump directly toward the topic.

Why is my hydroseed not growing
Why is my hydroseed not growing? – Image via Reddit.

Why Is My Hydroseed Not Growing?

Hydroseeding is technically an advanced planting method.

This method for planting grass is usually the preferred choice for expansive lawns or slopes that are hard to cultivate.

The process of hydroseeding includes mixing seeds and mulch to create a slurry. You can apply this slurry to your required surface using a high-pressure hydroseeder.

In some cases, there is no growth of grass even after the entire process is done successfully, which is a troublesome situation for most lawn owners.

There are multiple reasons why hydroseeding cannot grow properly; these include the following.

1. Lack of Sunlight

Hydroseed can thrive in different conditions, but your lawn will decline over time if there is insufficient sunlight.

Thus, ensure that your lawn receives about three to four hours of sun exposure daily.

If more trees are blocking the sufficient sunlight to reach the hydroseeding land, you need to move them to allow more sunlight to pass through.

You must plant your lawn elsewhere if you are unwilling to trim the trees that are shadowing your hydroseed.

2. Poor Soil

One of the other reasons your hydroseed is not growing is poor soil.

At construction sites or high-traffic lawns, the soil can be excessively dense, making it difficult for water and air to penetrate.

  • Adding loose topsoil helps a lot, but not enough to maintain your lawn.
  • If the lawn is only rooted within a few inches of topsoil, it is susceptible to drought and flood conditions.
  • The best way to ensure plant growth is to amend the soil.
  • Ensure that the soil you are going to use contains compost, peat moss, and organic matter before amending.
  • But if the soil is too rocky, like on construction sites, you can use the topsoil method.

Hydroseed has particular soil requirements; thus, ensuring there is enough compost, peat moss, and topsoil is essential for your lawn.

3. Deficiency of Water

Too little water could lead to growth issues.

After hiring the professionals to handle the hydroseeding, you are still the one responsible for watering your lawn.

If you live in an area where the temperature usually reaches up to 70 degrees or more, you should water your hydroseed about 2–3 times a day.

By doing so, you can achieve a nice lawn as you urge.

  • When the germination of seeds occurs, I suggest you water less often for a prolonged period.
  • That approach will train the root system to grow deeper to achieve a healthier state.

A good routine is watering with two days gap until the next. If you water daily, the roots will not grow deep.

Once your lawn matures, you need to water more deeply and infrequently—about one inch a week.

Try to water your lawn early in the morning, as it is excellent for hydroseeding.

During the early morning, the wind tends to be calmer, so water can soak into the soil and be absorbed into the grassroots before evaporating.

Related article: Best Way to Water Grass Without a Sprinkler System – 5 Ways

4. Mowing too Early

Mowing too early on your hydroseeding lawn might prevent your lawn from thriving properly.

Depending on your watering schedule and weather, the lawn will likely grow in around 7–10 days and gets ready for the first mow in about 3–4 weeks in the growing season.

You can mow your lawn when your first grass blade reaches about 3 to 4 inches (even if the entire yard does not match that height).

The mower height needs to be adjusted only to cut about one-third of the grass blades in a single mowing. Please ensure the mower blades are sharp enough to get the best result.

Once your lawn gets established, make sure to mow more frequently than usual to keep your lawn healthy.

5. Nutrient Deficiency

Although slurry is a mixture of compost and other nutritious soil materials, it is only enough to start the grass’ growing process. You’ll still need to apply the fertilizer within a month.

Make sure the fertilizer you use has a high amount of nitrogen.

Otherwise, you can apply all-purpose fertilizer every 6–8 weeks.

6. Foot Traffic

Why is my hydroseed not growing, you say? Steady foot traffic can contribute to why your hydroseed is not growing.

After the hydroseeding process, avoid walking on the lawn. If possible, block the entry of pets, children, and others to prevent disrupting the hydroseed mulch.

It is essential to lessen the traffic after the application for 5–6 weeks so your lawn gets enough time to mature.

That is all for today’s discussion! I hope you follow the instructions; you’ll surely get amazing results if you take proper care of your property.

Here’s an amazing video guide for you:

Why is my hydroseed not growing? – Hydroseeding – prep, application, and advice from a PRO! – YouTube.

Now it is time to move toward the conclusion.


So, why is my hydroseed not growing? I hope you got the reason for your case.

Hydroseeding is a process of creating a beautiful lawn with a minimum of effort. It is used to plant grass on extensive grounds and slopes that are extremely hard to cultivate.

  • But the problem is that hydroseed cannot grow properly if the proper conditions are not provided.
  • These include a deficiency of water, nutrients, and lightning.
  • Poor soil conditions or mowing your lawn too early can also lead the hydroseed not to grow properly.
  • What you need to do is to provide sufficient conditions for proper growth and maintenance.

I hope you find this post helpful. If you still have questions about this topic, do not forget to mention them in the comment section below. We’ll surely get back to you!

Moiz Atiq.