There are a few references which may help you. Take a look at the 1927, 1930 and 1935 ones. Otherwise, I am sure a grower of 'Glenn Dale' will be able to help in due course. The problem is remembering to look for any repeat blooms.
Thanks Patricia, I'll do that. I'm just trying to decide where to plant it. I like to stagger my climbers so that ever other one is a repeat bloomer :)
Glenn Dale has been in my garden since 2008, and I have never had any repeat on it. It flowers after Climbing American Beauty ... concurrently with Alchymist, Albertine, Alberic Barbier, and Ghislaine de Feligonde ... and before American Pillar, Dr. W. Van Fleet, and Arcata Pink Globe. Hope this helps with your progression of bloom.
My family has grown GD for at least 75 years, since my mom, when she about 10 (and is now 86), was given a cutting from a neighbor's plant. She stuck it in the ground at the end of the porch of her childhood home, and it proceeded to climb up the post and across the porch roof. It is glorious in full bloom. It was one of the reasons I fell in love with roses. It has always bloomed in time for Mother's Day here in E.TN. When I moved out, I took cuttings with me, and have grown it ever since. But in all the years of my life (62, so far), I've seen exactly three blooms anytime other than the Spring flush: once a single bloom, another time, two at once. In both instances, it was during a prolonged, open Fall season, with cool nights, warm days, and late frost. So, to make a short story long...no, GD is not remontant, but once in a great while you might be blessed with a single out-of-season bloom.
This is the second year for me with this rose, bought as a band. Very healthy, blooms are large and tend to be more white than yellow. Starting to really take off now. Buds more yellow. LOTS of thorns!
