Keith Mack
Hydroseeding is a popular method for creating a lush, green lawn. It involves spraying a slurry mix composed of grass seeds, fertiliser, mulch, and water onto the ground. While hydroseeding is typically done on bare soil, it can be done on an existing lawn to improve its appearance. However, opinions vary on whether this is effective, with some sources stating that the hydroseed needs to penetrate the soil to germinate and root properly, while others claim that it can be done with a thinner mix. In any case, hydroseeding is a quick, easy, and cost-effective way to establish a lawn.
| Characteristics | Values |
|---|---|
| Hydroseed application | Hydroseed is applied by spraying a slurry mix composed of grass seeds, fertilizer, mulch, and water onto the ground |
| Hydroseed suitability | Hydroseed is best suited for bare ground, but can be applied to thin or spotty vegetation with a thinner mix |
| Hydroseed germination | Germination begins within 10-14 days with proper watering and fertilizing, and a mowable lawn can be achieved in about 5-8 weeks |
| Mowing | Mowing can begin when the grass is around 3 inches tall, removing no more than 1/3 of the blade |
| Fertilization | Fertilizer can be applied 4-6 weeks after germination |
| Sunlight requirements | Shade seed requires some sun to grow, and too much shade will hinder growth |
| Watering | Watering is critical, with new hydroseed requiring watering 3 times a day for 10 minutes, for up to 3 weeks |
| Soil preparation | Soil should be level topsoil with around 50mm of screened soil, soft enough to leave a footprint |
| Cost | Hydroseeding is a less expensive alternative to traditional sodding |
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What You'll Learn
Hydroseeding is best suited for bare ground
Hydroseeding is a process that involves spraying a hydroseed slurry—a mixture of seed, mulch, and fertiliser—onto the ground. It is often used to create athletic fields, parks, and housing developments, but it can also be used by homeowners. Hydroseeding is best suited for bare ground, and it is not recommended to spray over existing grass, dead or alive. Here's why:
Hydroseeding is designed to be sprayed onto bare soil, and it requires direct contact with the soil to germinate and root properly. When sprayed over existing grass, the seeds may germinate in the mulch and then die off within a few weeks. Additionally, the roots of the new grass need direct contact with the soil to establish themselves, and existing grass can get in the way of this process.
Preparing the ground for hydroseeding on bare soil is straightforward and does not take too long. The first step is to clear away any debris, including rocks, branches, sticks, leaves, and weeds. It is recommended to remove weeds by hand or with a weed whacker to avoid chemical residue in the soil, which could damage the grass seed. After clearing the ground, you should grade the soil to ensure it is level and smooth, filling in any holes.
Once the ground is prepared, you can add your chosen blend of topsoil and compost to a depth of around 2 to 4 inches. You can then turn on the agitator to mix your hydroseed slurry, and spray it across the soil with a hydraulic machine. It is recommended to pick a calm and cool day for spraying, and it's important to avoid stepping on newly sprayed areas. After spraying, the lawn will need to be watered two to three times a day for up to three weeks to keep it moist.
While hydroseeding is best suited for bare ground, some people do hydroseed over thin or spotty lawns using a thinner mix of hydroseed. However, this may not always be successful, as the hydromulch may not make contact with the ground, leading to root exposure and drying out. For established lawns with thin or spotty areas, slit seeding or overseeding may be better options to thicken the grass.
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It can be done over thin or spotty lawns
Hydroseeding is a popular method for establishing new lawns for residential and commercial customers. It involves spraying a slurry mixture of seed, mulch, fertiliser, and water over an area. It is a less expensive and less time-consuming alternative to traditional seeding methods, such as sodding, and can be used to fix a balding or patchy lawn.
Hydroseeding can be done over an existing thin or spotty lawn. However, sources suggest that the process is best suited for bare ground. When hydroseeding over an existing lawn, it is recommended to use a thinner mix and a little less mulch to prevent smothering the grass that is already there. One source suggests applying half the seed first with a spin spreader and then hydroseeding over that.
It is important to note that hydroseeding requires some specialised equipment for proper application. The hydroseed mixture should be sprayed uniformly across the prepared area in multiple directions to ensure even coverage. The slurry layer should be 1/8 to 1/4 inches thick when dry.
After hydroseeding, proper lawn care and maintenance are crucial for nurturing the new grass and achieving a lush, healthy lawn. It is recommended to water the lawn three times a day for ten minutes for up to three weeks. Once the roots are established, you can start watering less frequently for three to six weeks. It is also important to refrain from walking on the lawn for the first month to avoid damaging the new grass.
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Mowing and fertilising is required for maintenance
Mowing and fertilising are essential aspects of lawn care. While it is possible to mow and fertilise on the same day, it is not always recommended. Mowing before fertilising is generally considered the best option, as it helps the fertiliser spread more evenly and reach the soil more easily. It also removes debris, such as fallen leaves, and allows for the natural decomposition of grass clippings, which can provide extra nutrients for the soil. However, mowing before fertilising can lead to nitrogen burn if not properly timed.
Alternatively, mowing after fertilising is an option, but it requires a waiting period of at least one full day, preferably 24 to 48 hours. Mowing wet grass after fertilising can result in an uneven cut and hinder the absorption of nutrients. Therefore, it is crucial to allow the fertiliser to dry before mowing.
When it comes to mowing, it is important to follow specific guidelines. Firstly, ensure that you never remove more than 1/3 of the grass blade length in a single mowing session, as cutting too much can weaken the grass and make it susceptible to diseases. Additionally, keep the mower blades sharp to ensure a clean cut and prevent an untidy appearance and increased susceptibility to insects and lawn diseases.
Fertilising is another critical aspect of lawn maintenance. Fertilisers typically contain essential nutrients such as nitrogen, phosphorus, and potassium, which promote healthy grass growth. It is important to follow the recommended fertilisation schedule, as fertilising too soon after mowing can stress the grass and lead to issues like brown patches and thinning.
In the context of hydroseeding, which is a convenient and cost-effective option for establishing a lawn, mowing and fertilising play a slightly different role. Hydroseeding involves spraying a mixture of seed, mulch, and fertiliser onto the desired area. While hydroseeding can be applied to existing thin lawns, it is generally recommended for bare ground. After hydroseeding, it is crucial to avoid heavy foot traffic on the newly seeded areas for the first six weeks. The first mowing can occur around four to six weeks after spraying, and it is important to carefully mow without removing more than 1/3 of the blade.
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It is a cost-effective option
Hydroseeding is a cost-effective option for establishing a lawn. It is a fast, efficient, and convenient way to seed a lawn or garden. The process involves applying seed, mulch, and fertiliser in a single application to any soil type. It can cover a large area in a short period and reach difficult places due to the sprayer forcefully distributing the slurry. It is faster and easier to install than sod and produces high-quality grass that is healthier, greener, and longer-lasting. Hydroseeding strengthens topsoil, produces fewer weeds, and does not layer the soil. It is also more affordable than sodding or conventional seeding.
The cost of hydroseeding depends on various factors, such as the size of the lawn, the type of grass seed used, the hydroseeding mix, labour, materials, transportation, and demand for the service in the region. On average, hydroseeding costs around $0.06 to $0.20 per square foot, or between $493 and $2,900 for an average-sized lawn of around 5,000 square feet. While hydroseeding costs more than grass seed, it is still more cost-effective than sod, especially for larger areas. Grass seed is the most economical option, costing around $0.24 per square foot or between $1.50 and $6.40 per pound, but it can be time-consuming and labour-intensive for larger lawns.
To save money on hydroseeding, homeowners can consider the DIY route, with equipment and materials costing around $398 to $725. However, hydroseeding requires specialised equipment, so it is generally recommended that homeowners hire professionals. Additionally, homeowners should consider the cost of a sprinkler system, which may be necessary to supplement rainfall and ensure optimal watering for their hydroseeded lawn.
While hydroseeding is a cost-effective option for establishing a lawn, it may not be suitable for all situations. It is important to consider the climate and growing conditions in the region, as hydroseeding may be more expensive in areas with hot, dry climates prone to drought due to the increased need for frequent watering. In cooler, wetter climates, hydroseeding may be more effective and require less frequent irrigation. Additionally, hydroseeding may not be suitable for established lawns with existing grass, as it needs to penetrate the soil to germinate and root properly.
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Hydroseeding is a quick and efficient method
Hydroseeding was originally developed in the 1950s as a way to quickly revegetate large areas and control soil erosion on construction sites, highways and mining operations. It has since become a popular lawn care method used by homeowners and landscapers for establishing new lawns or overseeding existing turf. Hydroseeding can cover up to an acre per hour, allowing large areas to be seeded quickly.
The process is much faster than traditional seeding methods. The slurry is sprayed evenly across the area, ensuring the seed makes consistent contact with the soil. The hydroseed mixture is simply sprayed over the prepared area in liquid form. No digging or soil disruption is required. This makes it a good option for large areas or slopes that would be difficult to seed or sod.
Hydroseeding is also a convenient and cost-effective option. Once the lawn has grown, you can then enjoy lawn games and outdoor entertainment. However, it is important to note that hydroseeding requires some specialised equipment, such as a hydroseeder machine, which can be self-propelled or pulled behind a truck.
After hydroseeding, proper lawn care and maintenance are crucial for nurturing the new grass and achieving a lush, healthy lawn. It is important to keep the area moist for 2-3 weeks after hydroseeding to ensure proper germination. Watering lightly 2-3 times per day if there is no rain. Once sprouts emerge, water more deeply but less frequently. Mowing can begin once the grass is around 75mm in height, and fertiliser can be applied 4-6 weeks after germination.
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Frequently asked questions
Yes, you can spray hydroseed on an established lawn, but it is not recommended. Hydroseed is best suited for bare ground, and when sprayed on an established lawn, the seeds may not make proper contact with the ground, leading to poor germination and growth.
Hydroseeding involves spraying a slurry mix composed of grass seeds, fertilizer, mulch, and water onto the ground using specialized equipment. It is a quick, easy, and cost-effective way to establish a lawn with uniform coverage.
After hydroseeding, keep the area moist for 2-3 weeks and water lightly 2-3 times a day if there is no rain. Once sprouts emerge, water more deeply but less frequently. Avoid walking or having any traffic on the lawn for the first month. Mow the lawn once the grass is about 3 inches tall, and fertilize 4-6 weeks after germination.
