Juniperus horizontalis 'Youngstown' Bob Fincham, Coenosium Gardens, explained about this cultivar "Juniperus horizontalis 'Youngstown' (1973) is a selection of 'Plumosa Compacta'; but lower growing, very flat, bright green: originated by Plumfield Nurseries, Fremont, Nebraska".
Iseli list this plant as Zone 2 and I would not disagree. I live in zone 3a and even during a very bad winter some 3 years back I did not observe any damage to this plant.
I will add that this cultivar exhibits an outstanding plum-purple color beginning after the first fall frost. The color deepens as the winter progresses returning to a dark green in the spring.
I have purchased some plants that were labeled 'Youngstown' but are clearly either reversions to Juniperus horizontalis 'Andora Compacta' or they were mislabeled. I believe that such mislabeling is common with this cultivar. One big distinguisher is the fall plum color. My 'Youngstown' appear a more pleasant intense color than the 'Andora Compacta' which is a plum-gray color.
This picture was taken in 2001 in my yard. The two plants had been in the ground for 2 years and were purchased as 2 gal. plants that were about a foot across. Within the 2 years they had grown to over 2 ft. across.
Photo by Ken Church
Comments
AmyInNH
"but are clearly either reversions to Juniperus horizontalis 'Andora Compacta' or they were mislabeled"
Oh, thank you! for pointing that out. I was scratching my head over the difference between the two. Additionally confused by Monrovia's web page "Youngstown Andorra".
I'm also observing mislabeling between Seagreen juniper and Mint Julep juniper.
Comments
"but are clearly either reversions to Juniperus horizontalis 'Andora Compacta' or they were mislabeled"
Oh, thank you! for pointing that out. I was scratching my head over the difference between the two. Additionally confused by Monrovia's web page "Youngstown Andorra".
I'm also observing mislabeling between Seagreen juniper and Mint Julep juniper.