How to Avoid Common Grass Seed Mistakes (2024)

Creating a lush, vibrant lawn takes commitment, but the rewards of a successful grass seed project are worth the time and resources you invest. A beautiful lawn can improve your home's value, benefit the environment and enhance your family's quality of life. Even if you're a first-time lawn grower, you can seed right and avoid these common mistakes:

  1. Planting the wrong type of seed
  2. Skipping the soil test and recommendations
  3. Using lime incorrectly or unnecessarily
  4. Ignoring recommended seeding rates
  5. Miscalculating your lawn dimensions
  6. Planting without regard for proper timing

How to Avoid Common Grass Seed Mistakes (1)

Healthy, well-balanced soil provides a solid foundation for grass growth.

1. Planting the wrong type of seed

Choosing appropriate grass varieties is the first step in ensuring your lawn performs up to your aspirations. Grasses vary widely in their preferences and tolerances, just like other types of plants. Kentucky bluegrass and Bermudagrass, for example, differ significantly in climate and maintenance requirements. Planting grass varieties appropriate to your growing regiongives your seed a natural advantage.

Even with similar seed types, all grass seed isn't equal. Learn what's actually inside the seed bags you or your lawn professional buy. By understanding the seed tagson grass seed products, you can be sure you invest in quality seed. Cheaper price tags can mean less seed versus fillers, old seeds past their prime, more weed seeds and lower germination rates. Getting seed right from the start benefits your lawn and budget.

2. Skipping the soil test and recommendations

Seeding success depends on an environment conducive to good grass growth. Knowing how your soil measures up on certain essentials, such as soil pH and plant nutrients, allows you to provide the foundation an outstanding lawn needs. Soil testingprocessed through a reputable soil laboratory eliminates guesswork and reveals changes you need to make.

Without knowing where your soil stands, well-intended soil amendmentsand fertilizers can harm grass instead of help — or simply go to waste. Incorporating your specific soil lab recommendations helps circumvent potential problems and unnecessary setbacks. That's one reason turf professionalsemphasize regular soil testing to start seed right and keep lawns healthy and vibrant. Your local county extension office can help with testing kits and lab referrals.

3. Using lime incorrectly or unnecessarily

Many homeowners think lime is a lawn care necessity, but that doesn't hold true across the board. Normal lawn care can naturally cause soil pH to drop lower over time, and lime applications benefit lawns that need pH raised. But in some cases, soil pH may already be high. Using too much lime or applying it unnecessarily can be as damaging as failing to add lime when it's needed.

When soil test results show your lawn's soil pH is below levels needed for optimal grass health, liming in accordance with recommendations restores proper pH balance, increases nutrient availability and helps keep lawns green. While many lime products are slow to work, products such as Pennington Fast Acting Lime speed up the process and start working immediately.

4. Ignoring recommended seeding rates

Using the proper amount of seed for your project influences success, whether you're starting from scratch or overseeding an existing lawn.New lawns or spot repairstake about twice the amount of seed needed for overseeding thin areas. Quality grass seed labels include guidance on optimal seeding rates to maximize your results.

Don't overdo or cut corners. Too much grass seed causes undue competition for resources such as light, water and nutrients, and grass seedlings struggle as a result. Too little seed leaves lawns thin or bare. Always follow “best practice" guidelines for planting grass seed, including site preparation and good seed-to-soil contact, and stick with recommended seeding rates for lush results.

5. Miscalculating your lawn dimensions

Getting your seeding rates right requires knowing the correct size of the area you need to cover. One of the most common problems grass professionalssee is when homeowners misjudge their actual lawn areas and over-apply grass seed or other products, such as fertilizers and herbicides.

How to Avoid Common Grass Seed Mistakes (2)

Time spent measuring your lawn prevents wasted products and labor.

Knowing your total property size is just the start. All non-lawn areas must then be deducted. This includes the footprints of your house, garage and outbuildings, as well as walkways and the driveway. Only then can you calculate your actual lawn area and the amount of seed you need. Time spent on proper measurements prevents wasted product, wasted money and poor results. Get it right and every bit of seed and labor work in your favor.

6. Planting without regard for proper timing

It can be tempting to plant seed as soon as the need arises. But proper timing has an important impact on results. Grass growth occurs in seasonal cycles, which vary according to the grass types common to different regions. Timing your seed projects to coincide with growing cycles greatly improves your rate of success.

For most of the country, fall is the best time to plant grass seed. This is when cool-season grasses such as Kentucky bluegrass and tall fescues peak in growth, and conditions enhance fast germination and establishment. When paired with innovations such as water-conserving Pennington Smart Seed, proper timing leads to other advantages, including less input of resources, less maintenance and better results.

7. Using weed treatments or weed & feed fertilizers with seed

One of the ways weed treatments work is by preventing germinating seeds from establishing roots. But these products, known as pre-emergents, can't distinguish between harmful weed seeds and desirable grass seed you put down. Using these products too close to newly planted seed — in timing or proximity — stops grass seed in its tracks, along with the weeds. Post-emergent weed treatments aimed at existing broadleaf weeds can also injure immature grass seedlings.

How to Avoid Common Grass Seed Mistakes (3)

Weed treatments and fertilizers used too close to planting can injure seed.

Always read and follow herbicide and fertilizer labels, especially the instructions for use on newly seeded lawns and your grass type. As a general rule, avoid pre-emergent weed treatments at least 10 to 12 weeks before seeding — or longer for some products. After planting, reserve broad-spectrum weed treatments until new lawns have been mowed at least two to three times; for fall-planted seed, that usually means spring.

When it comes to your lawn aspirations, you can bypass common grass seed mistakes and head straight for success. Make the most of your investment of time, money and grass seed, and enjoy the exceptional results. Pennington is committed to helping you grow the finest lawn possible and enjoy all the benefits that a beautiful, healthy lawn holds.

Pennington and Smart Seed are trademarks of Pennington Seed, Inc.

How to Avoid Common Grass Seed Mistakes (2024)

FAQs

How to Avoid Common Grass Seed Mistakes? ›

Overseeding is spreading grass seed over an existing lawn. Done right, it's a straightforward process that gets results. As grasses mature, thinning is normal—especially if you enjoy your lawn and use it often. Overseeding keeps your lawn competitive and steeped in youth and vigor, without starting over from scratch.

Can I just throw grass seed down on an existing lawn? ›

Overseeding is spreading grass seed over an existing lawn. Done right, it's a straightforward process that gets results. As grasses mature, thinning is normal—especially if you enjoy your lawn and use it often. Overseeding keeps your lawn competitive and steeped in youth and vigor, without starting over from scratch.

Can you put too much grass seed on a lawn? ›

If you put down too much grass seed, you will encourage competition that will cause your grass seedlings to struggle after germination because there will be excessive competition for sunlight, soil nutrients, and water. You'll know if you seeded too heavy when the grass grows in very thick patches.

Should grass seed be raked into soil? ›

In most cases, if you are simply adding seed to a thinning lawn it is not necessary to rake in the grass seed. If you are seeding a new lawn or there are bare spots, then you will need to rake in the seeds.

Should you water right after putting grass seed down? ›

Water new grass seed for 5 to 10 minutes immediately after planting to gently moisten the first several inches of soil.

What should grass seed look like after 2 weeks? ›

If the seed's sprout is pushing up through the soil, it has successfully germinated. If there are no sprouts after two weeks, check the seeds. If the seeds still look the same as when they were initially planted or are covered in mold or a fuzzy texture, something has gone wrong, and they might not germinate properly.

Will grass seed grow if you just sprinkle it on the ground? ›

If you simply toss the grass seed onto the soil, you will end up with poor germination. Thoroughly rake the area to remove any loose debris and to create grooves in the soil. These grooves will help increase the seed-to-soil contact that is imperative for germination.

Can I just throw grass seed on bare spots? ›

Can I Just Throw Grass Seed on Bare Spots? Throwing grass seed onto bare spots will result in little-to-no germination and will not help to repair lawn spots. If you want to fix patches on grass, you need to properly prepare the bare spots before laying down the seed.

Will grass seed grow on top of dirt? ›

Grass seed is surface sown, meaning it lays and roots on top of the soil, so it does not need to be buried. It's usually broadcast over the ground with a hand or rotary spreader. For that seed to sprout, it needs good soil contact, which makes soil quality a major factor in growing a healthy, uniform lawn.

What happens if you don't rake in grass seed? ›

Remember, lawn grass seeds only need to be lightly raked into the soil, or even just scattered directly on the soil surface. Any seeds buried more than the length of the seed will have a hard time germinating successfully.

What is the best thing to put over grass seed? ›

Cover Up

On hills, mulch with a thin layer of straw to keep seeds from washing away; just be sure you can plainly see the seedbed beneath the straw. You can also mulch the rest of your new lawn with straw to help cut back on water use.

What stops grass seed from germinating? ›

'There are several possible causes that may prevent the grass seed from growing, such as poor soil quality, inadequate sunlight or water, temperature extremes, bad seed, and pests,' says Susan Brandt, Co-Founder of Blooming Secrets.

What happens if I miss a day of watering grass seed? ›

Missing a day of watering in the critical germination phase can impact the health and growth of your new grass. If the soil dries out, it can halt the germination process or kill the young seedlings.

Should you tamp dirt before grass seed? ›

Good seed-to-soil contact

The second secret to success is to loosen the soil and tamp the new seed into place so that the seed is in good contact with the soil. Just tossing grass seed on top of hard, packed soil will lead to poor germination and poor growth.

What should I put down before grass seed? ›

Add compost, topsoil and starter fertilizer and then work them into the soil. Spread the grass seed at the rate indicated on the packaging.

Will grass seed germinate on top of soil? ›

Will grass seed germinate on top of the soil? Yes; in fact, germination will suffer if too much soil is placed on top of the seeds. The experts at Jonathan Green recommend placing a thin layer of mulch or topsoil over them to help keep them moist and warm and promote growth.

Should soil be wet when planting grass seeds? ›

Prepare the soil with a good watering before you plant the seeds. 6 to 8 inches is a healthy amount of water for the soil several days before planting. With new grass seed, the aim is to keep the soil moist. Waterlogged soil will suffocate the new seeds.

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