Here's the link to the AHS definition in the Daylily Dictionary. It has a good photo example of bud building.

Bud Building

Debra

I've never ever seen a daylily do this in all my years of collecting. I have noticed that there are tiny tiny TINY buds on some cultivars that eventually grow and become flowers.

Brad - The photo on the AHS site is really extreme bud building. Most of mine that bud build only add three to five buds to the end of the scape. Very few daylilies show the bud building trait. Final Touch is the only registered one I have that does it most years. Some years El Desperado will. I have a dip UF seedling that has bud built three out of the four years it's bloomed. I bought TNT and Season Finale because the hybridizers said they were bud builders, but they have never bud built in my garden. One year Crimson Pirate went crazy bud building and added almost 20 buds on a scape. This year Lillian's Thin Ice did it on just one scape, adding three more buds to the tip of the scape when I thought it was finished blooming.

Debra

I have a red seedling that does this . Genesta is a named cultivar that does this too. Supposedly Pink Stripes and Pee Wee's Big Adventure are bud builders ,

In an article from MIke Huben there is a list of bud builders http://huben.us/daylily/ExtendingPart2.pd

Also heard that North Wind Dancer is supposed to be a bud builder’

edited to add : Here are a few more

Skinwalker

Pink Enchilada

North Wind Drifter

Believe In Angels

Arrogant Bastard

Autumn king

Incense and Peppermints

Hemerocallis fulva 'Europa' if watered and fertilized it can be

Crimson Pirate

At the AHS daylily database, for bud builders go to bottom of chart and type in bud builder. (I thought it might allow me to copy the page link with all the bud builders listed but it doesn't so go to this link and type in bud builder . These plants are specifically registered with bud building as a trait. There are 6 pages of them

http://www.daylilydatabase.org/?advanced

Of the plants listed there only 15 are tetraploids , it appears all the others are diploids.

Thanks Debra and Signet. I obviously have none that do, unless North Wind Dancer does.

signet - Thanks for sharing the article! Very interesting! Obviously you and I need to keep hybridizing with our seedlings that have this trait.

Debra

Thank you for asking that question. I too didn't understand it. I will now be looking a little closer at my daylilies.