What Does NTEP “Commercial Availability” Mean?

If you look through historical NTEP tables, you may notice an asterisk next to

certain cultivar names.

That mark is useful—but it is easy to interpret too broadly.

It is historical evidence

When PoaIndex records an NTEP commercial marker, it means the source NTEP

report marked that entry as commercially available **in the context of that

report**.

It is evidence about that point in time.

It is not a live inventory feed.

A cultivar marked commercial in a 2017 report may no longer be widely sold.

A cultivar without a commercial mark in an early report may have been

commercialized later.

Experimental lines can become named varieties

Turfgrass development often begins with experimental designations.

An entry may appear in NTEP under a breeder code before a consumer-facing

variety name has been finalized.

AOSCA's Grass Variety Review Board index illustrates this process by publishing

both experimental designations and variety names, including records where a

name was added or changed through later amendments.

This is why PoaIndex does not interpret:

> no commercial asterisk

as:

> this cultivar never reached the market.

Those are different claims.

AOSCA identity is also not retail inventory

A confirmed AOSCA identity is extremely useful because it can connect an NTEP

experimental designation with an official variety name.

But that still does not mean you can buy the cultivar today.

AOSCA's Grass Variety Review Board is concerned with variety review and

eligibility for certification; the index is not a retailer-stock database.

So PoaIndex keeps three concepts separate:

1. Scientific performance

2. NTEP commercial history

3. Confirmed cultivar identity

None of those alone equals:

currently available from a retailer

Why show commercial history at all?

Because it is still useful evidence.

Suppose two high-performing NTEP entries are:

Experimental Line ABC-123

and

Named Cultivar XYZ

and XYZ has repeated NTEP commercial markings plus a confirmed variety identity.

That gives a homeowner more evidence that XYZ became a real-world cultivar

worth searching for.

It does not justify changing XYZ's scientific score.

PoaIndex therefore keeps commercial/identity information outside the

performance ranking.

What should you search for when buying?

Use the consumer-facing variety name first when PoaIndex has a confirmed one.

If the seed retailer lists its component cultivars, compare those names with the

PoaIndex result.

Extension guidance recommends reading the actual seed label because seed

products can contain multiple species and cultivars, and the product's

marketing name does not necessarily identify those components clearly.

What PoaIndex does not yet claim

Unless PoaIndex has an explicit retailer-availability source in the future, it

should not say:

> In stock

> Available now

> Buy this cultivar here

Historical commercial evidence is better described exactly as what it is:

> NTEP commercial evidence

That wording may be less exciting, but it is much more defensible.

Next: Grass Cultivar vs. Variety

Sources

• AOSCA Grass Index
• Penn State: turfgrass seed and seed mixtures