Show FAQs for subjects.
Can’t find an answer to your question? Get in touch with us.
How can I get in contact with a dealer or distributor? Shopping
We offer an easy way for you to find a dealer or distributor in your area on our Where To Buy page.
Do I need to do a soil test? Lawn
A soil test is a great way to measure your soil’s health and fertility, taking the guesswork out of fixing pH and nutrient issues in your soil’s profile.
How often should I mow my lawn? Lawn
Instead of establishing a mowing schedule based on frequency, we recommend basing it on the length of your lawn’s grass. Each grass type has an ideal height that it should be mowed to.
Our general rule of thumb is to never mow off more than ⅓ of the height of your lawn at any given time.
How much fertilizer should I put on my lawn? Lawn
It depends! While we can supply general fertilizer recommendations based on the type of grass you have and the time of year you plan to fertilize, the most foolproof way to fertilize is to first get a soil test done. This lets you know what the fertility is like in your lawn and allows you to better determine what nutrients you need to apply to keep your lawn healthy and thriving.
Additionally, we recommend you check out this reference from Oklahoma State University’s Division of Agricultural Sciences and Natural Resources for common lawn fertilizer applications.
How often should I water my lawn? Lawn
It is best to water your lawn as deeply and infrequently as possible. Turfgrass should be allowed to dry out to the point at which it begins showing signs of stress. These signs include wilting, turf turning a greyish purple color, lack of resiliency and more.
When you do water your lawn, apply the water to your turf as deeply into the profile as possible when you see signs of wilting. This infrequent routine will help develop a healthy, resilient Turfgrass system!
How much water should my lawn get? Lawn
Your lawn should receive irrigation water in a manner that the application rate does not exceed the rate that your lawn’s soil can absorb it.
The rate at which the soil in your lawn can absorb moisture is dependent on many factors like soil type, compaction and aeration, soil structure and more. Sandy soils will hold very little water compared to loam or clay soils.
Additionally, make sure soils have proper drainage to avoid prolonged periods of moisture. Any excess amounts of water can cause many problems with Turfgrass. Irrigation run times should be adjusted so that water does not run off.
How much grass seed do I need to buy? Lawn
It depends. Each species has its own suggested planting rate (the amount of seed that will be needed to cover a specific area, usually given in rates of pounds per 1000 square feet.)
If you have your eye on a specific species we offer, the product detail page of that product will list the suggested planting rate for best results.
How do I know what type of grass I have? Lawn
As a general rule of thumb cool season grasses grow in the northern portion of the U.S. (ie. bluegrass, fescue, and ryegrass) and warm season grasses grow further south (ie. bermudagrass, buffalograss). However, there are different growing regions in the U.S. that impact where grasses will thrive beyond north/south boundaries.
Purdue University offers a great resource tool to help you identify the turfgrass species that are present in your lawn.
I planted seed and it didn’t come up. What happened? Seed
Many people with seed germination issues wonder if there was a problem with the seed. However, that usually isn’t the cause. State seed laws require us to monitor seed lot germination by sending samples to certified seed labs to test and verify germination standards.
There are many factors that can cause seeds to not grow, including:
Seeds were planted when it was too hot or too cold
Seeds were planted too deeply/not deep enough
Seeds received too much water/not enough water
Seeds were planted in compacted soil
If you don’t see a solution to your problem here, don’t hesitate to call our customer service line at 580-249-4449 or email us at email@example.com and we will work with you to find a solution.
What is the difference between Pure Live Seed (PLS) and Bulk Seed? Seed
Pure Live Seed (often referred to as PLS) refers to the percentage of live, viable seed in a bulk amount of seed. This percentage of seed is what is capable of developing into seedlings. PLS provides a standard of comparing the quality of lots of the same species that have different germination and purity. PLS is calculated by multiplying the percent of total germination and the percent of pure seed of a lot.
Example: 98% purity and 90% germination
98 x 90/100=88.2%
Only 88.2 percent of that lot of seed is capable of growing. If you have a 50-pound bulk bag of seed that would give you 44.1 pounds of live seed.
What is the difference in seeding rate for coated vs. uncoated seeds? Seed
Most seeding rates are based on a set number of seeds over a certain area. When a coated seed is used, the seed size has been increased, so the rate should also be adjusted to accommodate the larger seed.
What is the difference in seeding rate for drilling vs. broadcasting? Seed
Due to the variability of broadcasting seed over the ability to calibrate a drill, seeding rates are often recommended to increase when using the broadcast method.
Do you sell your products nationally or internationally? General
Yes! We offer our products to both U.S. and international customers. Learn more about where to buy our products on our Where to Buy page.
Where can I purchase your products? Shopping
There are several ways you can purchase our products! Shop our online store 24/7; visit our headquarters in Enid, Oklahoma; or contact one of our authorized dealers and distributors for one-on-one support.
How can I track my order/shipment? Shopping
By logging in to our online store, you can track where we are in the order fulfillment process. Once we have shipped your order, you will receive tracking information.
What is NPK? Lawn
“NPK” stands for Nitrogen, Phosphorous, and Potassium ratings. These are chemicals used in fertilizers that help provide nutrients to a plant.
How deep should I plant seed on my lawn? Lawn
That depends….see “planting chart” or “product detail page”
How long can I store seed? Seed
Seed should be stored in a cool (not freezing), dry place with low humidity. When properly stored some seeds can stay viable for years.
What is seed coating, and what are its benefits? Seed
Seed coating is a covering applied to seeds that may contain fertilizer, growth promoters or a seed treatment. Seed coating can also be used to increase the size and weight of the seed to aid in planting accuracy.
Where are your products grown? General
We grow many of the products we sell – particularly our specialty products. In addition, many of our employees, whether in sales, management, research or another department, are agronomists by trade. That means our employees must know the soil, the weather, the blotchy patch in the lawn, when to plant, prices, the number of square feet in an acre and much more.
How much mulch do I need for my flowerbeds? Garden
What is your return/exchange policy? Shopping
Before returning any purchases, please contact us at firstname.lastname@example.org for return authorization. All seeds returned for credit are charged a 15% restocking fee. We reserve the right to refuse acceptance of any material returned for a refund. If a customer finds any damage when unloading material, it will be their responsibility to obtain the necessary verification from the carrier and file a claim accordingly.
How soon will I receive my Johnston Seed purchase after ordering? Shopping
For domestic orders, please allow 3-5 business days for in-stock items to be shipped.
For international orders, please contact us at email@example.com for further information.
Due to various restrictions on shipping agricultural products internationally, special arrangements must be made to ship outside the United States with the purchaser agreeing to pay the associated costs.
Do you offer warranties? Shopping
Customers must make any claims for errors involving shortage or omission in writing via email within 10 days after receipt of shipment. Liability is limited to replacement or refund of purchase price.