I have two bud building plants according to the article Susan published earlier in this thread. I had previously thought it was just the normal plant habit of both these plants. Now that I understand what bud building is and the spiral look of the scapes, I can safely safely say that for me at least one of these plants is a fabulous bud builder.
'Happy Returns' (Apps) is a very healthy clump that just keep adding one or two scapes after the first bloom. It is always the first plant to bloom prolifically in my garden in late June/July, and reblooms again in late August thru September when the temps slide into the 60's, and cold morning openings are the norm, while the rest of my garden is winding down for the year. 'Happy Returns' is a very bright, cheerful daylily, and a great example of ' daylily bud builders'. Here is picture of my clump 2013.
Happy Returns - June 2013
The 2nd plant mentioned in Susan's article listed as a bud builder is daylily 'ESP' - John Shooter. I was really surprised to see this one on the list. Last year (2012) was its first year to bloom for me. It is not clump size yet. This year 'ESP' sent up 4 scapes. It's a late bloomer for me . I noted it's first bloom Aug. 1, 2013, and remember that it's last bloom was in mid September, another CMO. While this plant seemed to have above average amount of blooms on it, I don't recall anything more specific about it. It will certainly be in my line of sight next Summer as a 'bud building' plant.
Here are a few pix of 'ESP'
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ESP - J. Shooter