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  • Australian Owned
  • Fast dispatch
  • 30 Day Return Policy
  • Industry Leading Support


  • Australian Owned
  • Fast dispatch
  • 30 Day Return Policy
  • Fast dispatch
  • 30 Day Return Policy

Annual Ryegrass Seed

Key Features:

McKay’s Annual Ryegrass as the name suggests is a 1-year proposition that provides excellent quality Autumn, Winter, and early Spring growth. The forage quality drops in late spring with the onset of seed head emergence. The plants have usually died off summer. Annual Ryegrass will not regenerate and requires annual reseeding.

It is often used to overseed warm-season lawn grasses (such as Buffalo, Couch, Zoysia, Kikuyu, Queensland Blue) to provide a green, economical grass cover from Autumn to Spring. It can also be used for weed suppression and temporary erosion control.

Annual Ryegrass is an easy to establish grass, bred to provide quick winter pastures and, with sufficient moisture, seeds will even germinate when broadcast on top of established lawns or pastures. It is typically suited to winter rainfall and areas with hot, dry summers.


Seeding rates: 

  • New Lawns: 30 grams per square meter (3kg/100m2).
  • Overseeding: 20 grams per square meter (2kg/100m2).
  • Note: Annual Ryegrass Seed will only grow for 1 year
  • WA customers: Click here to order from our WA website. No additional quarantine fees apply when ordering from the WA website.

    For more information see below for Description and Features to see if this grass suits you!




Sowing Tips: Sow into the soft topsoil or sandy loam. Broadcast the seed at, or very near, the soil surface and incorporate lightly with raking. To ensure the best coverage and avoid seed wastage we recommend using an appropriate seed spreader for the size of your area. The soil must remain damp throughout the germination period of both seeds and must be maintained for at least 1-2 weeks after sowing, through irrigation or natural rainfall.

Optimal Planting Time: Autumn sowing is recommended.

Germination: 7-10 days with sufficient water, climate-dependent.

Water: Ensure soil remains damp throughout the entire germination period. Approximately once per week after the establishment of grass, and as needed during hot weather.

Fertilizing: McKays Slow Release Fertiliser can be used to prepare the soil for sowing of Annual Ryegrass.

First Mowing:  When Annual Ryegrass is approximately 5-7cm tall. This demonstrates that the roots are strong enough to withstand the wheels of the mower and should not be pulled out during mowing.

For residential use, set the mower to cut at approximately 5cm above ground level and repeat the mowing when the grass grows about 2.5cm above the set level.

Mowing Frequency: Depending on the purpose of the Annual Ryegrass. Residential lawns where shorter heights are preferred may need to mow twice a week during the active growth phase.

Disadvantages of Annual Ryegrass:

  • Only lasts for 12 months (approximately)
  • Needs to be resown annually

Seed & package details: 100% Annual Ryegrass  

Independently Tested: 85% Min Germination, 98% purity. A seed testing Certificate is available upon request.

Ideal Usage: Winter oversowing of residential lawns, rapid ground coverage, temporary erosion control, weed suppression.

Where can I sow this grass in Australia?  Areas 4, 6, 7, 8, 9

Shade tolerance: Excellent

Daily Sunlight required: 4+ hours

Drought tolerance:  Weak

Frost Resistance: Very Good

Traffic Tolerance: Excellent



Map Grass Image


  • Warm
  • Cool

Warm season grasses thrive during the warmer months in Spring and Summer and may go dormant in cooler climates through winter.

Cool season grasses thrive during the cooler months in Winter

Seed information

Shade tolerance (Weather)

  • Full Sun
  • Part Shade
  • Heavy Shade
  • Full Shade

Drought tolerance (Weather)

  • Moderate
  • Good
  • Excellent

Traffic tolerance (Weather)

  • Moderate
  • Good
  • Excellent

Frost tolerance

  • Poor
  • Moderate
  • Good
  • Excellent

Average days to germination

  • 2-3 Weeks
  • 2-4 Weeks
  • 3-4 Weeks

Free Shipping On All Orders Over $50

We provide free standard delivery shipping for all orders where the total cart value exceeds $50.00 AUD

Standard Delivery

Australia Wide (except Western Australia)

Flat rate of $9 (for orders under $50).
Orders are dispatched within 24 hours via regular Australia post (3-5 Business days).

Express Post

In a hurry? Express shipping is available at checkout.

WA Customers

Due to quarantine restrictions, we have a different product range available for Western Australia.
If you are shopping for delivery to WA, please view our WA site here

Pick-up Not Available

Sorry, we are not able to offer local pick-up.


Unfortunately we are not able to ship internationally.

Customer Reviews

Based on 26 reviews
Brett C.
So impressed! Excellent pre and post sales service!

I'm really blown away! Purchased on the 1st of November 2021 I was told I'd have thick lawn by Christmas !! Not wrong at all!
With a mixture of Annual Rye and Kikuyu along with some slow release fertiliser, not only id we have a lush thick lawn for Christmas but very very cost effective front and rear lawn solution! It's now the 3rd of January 2022 and I've just cut back my front and rear lawn, it's magic to walk and run on and it just looks amazing. Seriously couldn't ask for more! Outstanding service and a brilliant product, trust me I'm no green thumb but I've got a very impressive lawn around our new house. Outstanding!

Fred D.
Lawn reseed

Used in conjunction with a quality top dressing I have noticed signs of germination after a week, most gratifying.


Good service, prompt delivery, very high seed germination.
Quality grass seed

Mike S.
Fantastic service and product

Delivery arrived within the agreed time frame. We oversowed our couch shortly after it arrived and it started to germinate within a couple of weeks. We were retained we had missed our window as the Melbourne winter had hit, but it is going strong.

Great way to green up the winter lawn & cover bare patches

We have Sir Walter buffalo (in Brisbane) which tends to go dormant over winter and become quite bare and patchy in our shady yard, especially in high traffic areas. We'd also had a digger through installing a new stormwater pipe through the middle of the lawn a couple of months ago, which we patched with turf, but there were still gaps. This rye grass was sown 10 days ago and the lawn is already looking so much greener, with the gaps starting to be filled in. This is with cold morning temps (6-9 degrees) and mostly shaded. Great stuff!

Annual Ryegrass

Great service!

Chris H.

It worked

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