I grow Rock & Roll, but we have mild winters. Here, mine is narrow at the base and widening to about 4 to 5 feet at top. No bare knees...foliage to the ground. Beautiful blooms in the spring and fall. Here, mine will keep blooming all summer, but blooms are much smaller and they lose most of their splashes and stripes when it heats up...become mostly red with faint pink variegation. Very fragrant even in the heat, though. Blooms may keep their red and white coloring in the summer for you in your cooler zone.

Spring blooms:

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And a summer one:

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Rock & Roll is reliably hardy, and mostly tip hardy for me in zone 5a. It's next to Stars 'n' Stripes Forever, so it's sometimes hard to tell where one bush starts and the other stops, but both are big bushes for me - at least 5' tall and a good 4' wide if I let them. You'll like it - it's a great striped rose for cold zones.

Let me know if All American Magic overwinters for you. It wimped out totally for me once in the winter, and I'm pondering trying it again. Where did you get yours?

Cynthia