Striped Seed Co. | 🏷️ Canada Certified No. 1

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Alpha Centauri Elite Perennial Ryegrass

Name: Alpha Centauri Elite Perennial Ryegrass
Brand: Striped Seed Co.
SKU: ALPHA-5KG
Price: 65.0 CAD
Availability: OutOfStock

$135.00 CAD

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Fast Germination
Top Rated
Dark Green

🌿 Germination: 6-8 days

🌱 Coverage

2 kg (4.4 lbs)

New lawn: ~500–625 sq. ft.

Overseeding: ~625–1,000 sq. ft.

5 kg (11 lbs)

New lawn: ~1,250–1,560 sq. ft.

Overseeding: ~1,560–2,500 sq. ft.

📐 Not sure about your lawn size? Here's how to measure it →

Free Gift With Any Grass Seed Purchase

No rush — most of Canada isn't ready to seed until late April at the earliest.

Vancouver / Lower Mainland: April onward
Southern Ontario / Montreal: Late April – May
Prairies: Mid-May – early June
Atlantic: May

Add SeedLaunch Pro and save $12.00 Starter fertilizer designed for the same day as your seed. SGN 150 mini-prill, 60% slow-release nitrogen. View 5kg bundle — $175 →

Same day / next day order processing (on weekdays)

Orders placed on weekdays are usually processed same-day or next-day. Orders placed on weekends will be processed on Monday.

FREE Canada-Wide Shipping 🇨🇦

Orders ship from Toronto and typically arrive in 2-5 business days depending on your location. Orders going to Western Canada and the Maritimes can take a little longer, 5-8 business days.

30-Day Returns

Change your mind? We offer 30-day returns on unopened and unused items. Learn more.

Seeding rates

Seeding rate per 1,000 sqft: 3.5kg-4.5kg
New lawns: 3.5kg-4.5kg per 1,000 sqft
Overseeding existing lawns: 2kg-3.5kg per 1,000 sqft

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No Weeds | No Filler | Certified Elite Grass Seed

Introducing Alpha Centauri

Certified, Best-in-Class Elite Perennial Ryegrass

Alpha Centauri is a new elite perennial ryegrass cultivar that is available for the first time in 2025. We think Canadian lawn enthusiasts are going to love it and are excited to be able to offer it as a dedicated option in both our 2kg and 5kg bag sizes. Each bag contains 100% Alpha Centauri perennial ryegrass with 0.00% weed and other crop seeds.

Proven and Tested for Outstanding Overall Performance, Dark Colour, Spring Green-up, and Fast Germination

Alpha Centauri offers the latest in seed breeding technology, with superior genetics that have led to impressive rankings in the National Turfgrass Evaluation Program (NTEP)—the Oregon-based research program that tests, scores, and ranks certified elite grass seed cultivars and is widely accepted as the standard for turfgrass evaluation in the U.S.A. and Canada.

Most notably Alpha Centauri scored 2nd (🤯) in overall turf performance in the latest (2023) NTEP report, with high marks in specific categories like disease resistance, spring green-up, and (dark) color.

Testing has also shown that it is durable and can handle wear, heat stress, and drought. And best of all it has excellent seeding vigor and establishment which is a fancy way of saying it can provide a quick, lush, high-performing lawn under a variety of conditions.

If you’re looking to transform an ugly lawn this year or want to take a “nice” lawn to the next level, Alpha Centauri offers best-in-class genetics and performance that could make your lawn the talk of the neighborhood.

FAQ

What's the difference between the Alpha Centauri Elite Perennial Ryegrass and the 100% Elite Perennial Ryegrass Blend?

We carry two perennial ryegrass options, and the main difference comes down to cultivar control versus blended performance.

Alpha Centauri Elite Perennial Ryegrass is a single-cultivar option — 100% Alpha Centauri, which is one of the top-performing ryegrasses we've trialled. We made it available on its own for customers who want more control over exactly what they’re putting into their lawns, whether for consistency, aesthetic, or reseeding purposes.

Elite Perennial Ryegrass Blend, on the other hand, includes a mix of three elite perennial ryegrass cultivars — and it actually contains 33% Alpha Centauri as part of the blend. Blends like this are often a great choice because using multiple cultivars can help create a more resilient lawn overall. Each cultivar brings different strengths (like disease resistance, colour retention, or stress tolerance), which can help the lawn handle variable conditions better.

Both options germinate quickly (usually in 6–8 days), and both are great for full sun or light shade.

Elite, Certified Grass Seed For Home Lawns

Elite Cultivars
Trial-tested for their ability to deliver thick, dark green, disease-tolerant turf (not available in your local big box store).
Homeowner-Friendly Quantities
Get the same premium seed turfgrass professionals use without having to buy enough to cover an entire fairway.
Delivered to Your Door
No more hassle, phone orders, or driving for hours to obscure wholesale suppliers. Get the grass seed the pros use delivered right to your door.
Weed-Free, No Filler
All bags contain 0.0% crop and weed seed, have a 90% minimum germination rate, and are certified quality seed with exceptional NTEP scores.

Elite, Certified Seed vs Common Seed

Elite grass seed benefits
✅ Superior Genetics: Bred for specific traits like disease resistance, drought tolerance, improved color, finer texture, and increased wear tolerance.
✅ Certified, Higher Purity: Tested and certified to ensure it contains a very high percentage of pure seed with minimal weed seeds or other crop seeds, leading to a more uniform lawn.
✅ Improved Germination Rates: Elite seeds have higher germination rates, meaning more seeds will sprout successfully.
✅ Increased Density: Results in a thicker, more lush lawn due to the superior genetics and purity.
✅ Better Performance: Exhibits better performance in terms of overall health, appearance, and resilience.
Common (Big-Box) Seed
✖︎ One-size-fits-all blends: Always contains some mix of ryegrass, bluegrass, and fescue offering less control and potentially leading to a less uniform appearance.
✖︎ Lower Purity: Typically contains a lower percentage of pure seed and a higher percentage of "filler" and weed seeds or other crop seeds.
✖︎ Variable Germination Rates: Germination rates can vary due to lower quality of seed.
✖︎ Lower Density: May result in a thinner lawn compared to elite seed.
✖︎ More Maintenance: May require more effort to maintain a healthy and attractive lawn due to potential weed issues and varying growth habits.