Is my Grass Seed Dead?
My Grass Seed won't Germinate. It must be Rubbish!
99% of grass seed you buy will be perfectly good. The only time you are likely to have bad seed is if it is very old or it has been stored badly. Old means 3 years plus and stored badly means fluctuating temperatures that also get hot; like in your shed!
Consider this:
Your seed is a mixture of several different seed varieties that, if purchased from a reputable source, have been blended by a DEFRA registered seed merchant. For your mixture to completely fail means that all the varieties in your mixture are dud. As each variety would have originated from harvests of many hundreds of tonnes throughout Europe this would mean there is a massive problem affecting seed merchants and people like you everywhere. Therefore, bad fresh seed from a professional supplier is as likely as a flying pig.
You may be reading this because you are having problems getting your seed to germinate. The most likely cause is in the planting even though you think you have sown by following the instructions to the letter. Even professionals have bad results on occasions, and they will seed and over seed hundreds of times in their lifetime whereas the homeowner or amateur may only seed a handful of times in a lifetime and therefore not have the same level of skill, experience and knowledge.
This conversation is not new to us and we do know how to resolve it so you have come to the right place to get help. To resolve any nagging doubt that you have about your seed please consider the following and always always test the seed.
Have you sown the grass seed in the right conditions?
To germinate, the seed needs these conditions:
- The seed is in good contact with the soil
- The ground temperature is above 10 degrees - 12 degrees or higher is great
- There is plenty of ground moisture
- The seed hasn’t been covered with peat, compost or soil
- The seed is watered or covered with polythene so it doesn't dry out
If any one of these factors isn't true then potentially the seed just hasn’t germinated and is still alive. Correcting the condition(s) may solve the problem. However, if the seed has been allowed to dry out whilst germinating then the seed is probably dead.
To understand more about what may have gone wrong read All about Grass Seed Germination
So, the above still doesn’t answer the question; Is my grass seed dead?
Test for Grass Seed Viability
This test can also be performed on seed that is yet to be sown. Perhaps you’ve just bought it or it has been in your shed for a number of years and you need to know if it will grow.
- Take an old clean cloth and fold it into a flat pad about an inch thick. Place this in a tub or bowl that can be loosely covered and add half an inch of water. The cloth will soak up water and become saturated.
- Scoop up seeds from a sown area. Discard empty husks and don’t worry if you get some soil as well
- Sprinkle 20 to 30 seeds on the top of the cloth pad
- Place the tub in a warm place away from drafts. Airing cupboards and utility rooms are usually ideal. Being in the dark isn’t a problem
- Loosely put a lid on the tub to prevent too much evaporation
- Maintain a water level of about half an inch until germination - do NOT let it dry out
Germination will take between 5 and 14 days depending on seed type and temperature. If the tub and pad dry out you need to start again - re-filling after drying doesn't work because the seed is probably dead!
Count how many green shoots you have and look at the scale below.
Percentage of Seed Germinating
- If 75% plus germinated then all is well and you have a superb result
- If around half germinated double your seeding rate
- If less than half germinated and the seed is from a sown area something is not right and the conditions need to be improved.
- If less than a third germinated and the seed has not been sown then this batch should be discarded and fresh seed purchased.
Buy Lawnsmith Grass Seed Mixtures
More Grass Seeding Techniques and Problems
-
Grass Seeding Techniques and Problems
A step by step guide on how to prepare the ground, sow your grass seed, protect and nurture it to create a brilliant lawn in a matter of weeks.
-
Planting and growing a lawn from grass seed requires warmth, moisture and air to ensure success. Learn what's needed for a great lawn in quick order.
-
Grass Seeding Techniques and Problems
Temperature and moisture are the two main factors when it comes to planting and germinating grass seed whether that's for a new lawn or when over seeding.
-
Watering grass seed is quite different from the way you would water a lawn. The golden rule is never let the seed dry out so frequent light watering is needed.
-
Grass Seeding Techniques and Problems
For convenience you can fertilise the seeded lawn area on the day of sowing however, due to changing weather patterns this may not always be best.
-
Grass Seeding Techniques and Problems
Grass seed is easy to germinate and grow into a lawn if you get the planting, moisture and temperature right. Here are some very common grass seed sowing mistakes.
-
Grass Seeding Techniques and Problems
Whether you're planting grass seed for a new lawn or just seeding a few patches birds can be a problem so here are some ways to stop birds eating your seed
-
Grass Seeding Techniques and Problems
Covering your precious newly planted grass seed with polythene sheeting is not only an effective protection from birds but also drying winds and torrential downpours. Very cheap, easy to lay and speeds germination.
-
Grass Seeding Techniques and Problems
In general grass seed will keep for up to 5 years if fresh to begin with. The biggest influence on germination is how well it is stored not the age.
-
Grass Seeding Techniques and Problems
Weeds in newly seeded soil is normal. Digging, scarifying or new soil wakes dormant seeds. Most will disappear with the first cut but some require weed killer.
-
Grass Seeding Techniques and Problems
Care must be taken when cutting a new lawn for the first time as the grass is tender and the roots are shallow. Sharp mower blades and dry grass are essential.
-
Grass Seeding Techniques and Problems
The best way to decide is not by time but by the condition of the grass. Grass seed or turf laid in perfect conditions in April in Cornwall will establish twice as quickly as that sown in Aberdeen.
-
Grass Seeding Techniques and Problems
During winter several things can go wrong with your lawn from grass thinning a little, complete loss of grass in some areas to an invasion of moss and strange coloured patches in the lawn.
-
Grass Seeding Techniques and Problems
Sandy or poor soils and the drier east of the country are presented with a challenge when it comes to lawn care. Choosing drought tolerant grasses will help.
-
Grass Seeding Techniques and Problems
When dealing with clay soil, it's important to choose grass seed varieties that are well-suited to these conditions. Here are a few grass seed options that tend to perform well in clay soils.
-
Grass Seeding Techniques and Problems
Choosing grass seed for wet shade, building and fence shade, dry shade from trees and partial shade from objects distant from the lawn
-
Grass Seeding Techniques and Problems
This is a dry place where trees or other plants out compete the grass for ground water and may also prevent showers reaching the lawn.
-
Grass Seeding Techniques and Problems
Areas of lawn where little light gets to the grass for long periods usually from autumn through to spring.
-
Grass Seeding Techniques and Problems
For slow-growing grass varieties suitable for UK lawns you can consider the following options though there are considerable downsides!
-
Grass Seeding Techniques and Problems
Letting your lawn go to seed is a personal decision that depends on your preferences and goals for your grass. Nature vs nurture!
-
Grass Seeding Techniques and Problems
Lawn seed will already be a mixture of a variety of grass species. Mixing two together before sowing just halves the benefits and doesn't increase them.
-
Grass Seeding Techniques and Problems
Over seeding with grass seeds that are different to your existing grass will change the composition of the lawn. Expect a 10 to 20% change each over seeding.