How To Identify A Plant’s True Cultivar Name

 

 

Most plant tags highlight the big, flashy trade name — the marketing name growers use to stand out. But the cultivar name is the plant’s true genetic identity, and it’s the key to knowing whether two “different” varieties are actually the same plant.
 

Here’s how gardeners can track it down.

 

1. Check the Plant Tag Carefully

The cultivar name is usually printed in single quotes, like: ‘Arapaho’, ‘Pink Lemonade’, ‘BBX-1245’

It’s often smaller, tucked under the trade name, or printed on the back of the tag.

Trade Name Example:

Southern Star™

Cultivar name (the real one):

‘PAF-1234’
 

2. Look for the Patent Number

If the tag lists a plant patent (PP#), you can look it up online.

A patent number like PP27,032 corresponds to one specific cultivar, no matter how many trade names it’s sold under.

Once you find the patent, the official cultivar name is listed in the patent description.
 

 
 

3. Search the Trade Name Online

Many growers publish both the trade name and the cultivar name on their websites.

Searching “Southern Charm™ cultivar name” or “BerryBliss™ patent” often reveals the true identity.
 

4. Ask the Nursery or Garden Center

Independent garden centers often know the grower or supplier and can look up the cultivar name directly from the invoice or liner tray.

Big box stores rarely know — but local nurseries usually do.
 

5. Check University Extension Resources

Extension services often publish cultivar lists for fruit trees, berries, ornamentals, and shrubs.

These lists use cultivar names only, which makes it easier to match what you’re buying.
 

6. Remember: Trade Names Are Optional

A plant must have a cultivar name to be patented.

Trade names are just branding.
 

So if you can’t find the cultivar name on the tag, it’s still out there — it’s just hidden behind marketing.