I was thinking Desdamona but that only recommended zone 5 so could be pushing it.

My Boleros are all new and even so are very prolific and fragrant

Mine arent very tall , naybe 2 ft right now.

Kristine - beautiful Bolero!!! Mmmmmm :) :)

I know that HMF says z4 and I'm not in your zone and have never tried it there, but I wonder if Marie Pavie would be hardy in zone 4? It is not the most cold-hardy rose I have and I live in zone 7. I'm also not sure about bolero, another rose I grow. Maybe someone in zone 4 will have experience with those two and could be more reassuring. I wish I could be of more help.

Darlow's Enigma -- fragrant blooms all summer, very hardy. Here in central Michigan it gets anywhere from 4' (seven plants in various places around the garden) and one plant throws 12' long canes that I've placed on a small tree for a cascading bloom effect.

My next door neighbor has Bolero and it is tip hardy for her and gets a lovely smothered-with-blooms look. She's in zone 4 with not the best sunlight and it still looks gorgeous. Seeing hers put Bolero on my wish list too.

Rosesmi5a - Wow thank you for introducing me to Darlow's Enigma. I have never heard of this beautiful thing. It seems like a really versatile rose that can be a shrub or climber with graceful form. Given that you have 7, you must really love it! I'm adding this rose to my wish list.

Joey - thank you for confirming Bolero is tip hardy and does decently in less sun. I picked up two this year and have been mulling over whether to plant in ground or overwinter in an unheated shed. Mine appear grafted anyhow, but it's always reassuring to hear a fellow z4 succeed with it. Do you know if your neighbour provides winter protection? I don't winter protect any of my in-ground roses but I'm willing to make an exception for Bolero :)

She doesn't winter protect at all. It is a grafted plant from Home Depot which when I helped her plant it had the graft buried about 5 inches below the soil line. It's not a large bush, stays fairly compact, but has a very nice tidy shape and looks great in her garden at the base of a lanky climber.

Another vote for Darlow's Enigma. Frothy? YES! Fragrant?: YES! Alkaline soil? YES! Mine takes a short pause between flushes.

More about Darlow's Enigma: rabbits love it, and they often cut it down to about 6" if there isn't any snow cover. The bush is too thorny to try to protect it from rabbits, and the bush is also vigorous enough to shoot up many 4 foot new branches every year, so I leave it be. In the spring, I cut out any dead wood. That is the only care it gets all year!

I would protect a young plant though with some sort of physical barrier. I often use a 3-5 gallon plastic pot with the bottom cut out -- placed over the plant in the fall, it will protect at least the first 12" or so of growth. Last year I duct-taped two bottomless pots together to see what would happen. The rose (a Rose de Rescht) came through beautifully, and it did the best ever this summer.

I love my Darlow Enigmas.

Joey - I love your description...smothered-with-blooms!!

Flowers - YES!! :) :) :)

Cream Veranda is constantly in bloom. I’m z5 so not sure on hardiness in z4. Also Oscar Peterson and Escimo. Cassie is like a smaller version of Darlows Enigma. Pretty Polly white has smaller blooms. FWIW Marie Pave has been hardy here. Oh and Summer Memories is nice!

Dingo, please tell us more about the rose "Cassie"; I love the idea of a smaller version of D's Enigma! Also, where did you find a plant of Oscar Peterson? I've been thinking about trying that rose.

http://www.combinedroselist.com/freedom-gardens.html

Oh Vaporvac! Thank you -- reading that rose list at Freedom Gardens is the trifecta!

Cassie is a shrub - about 4’ with a nice neat shape. She looks completely white with the spring flush and continues to bloom all summer. I have seen Oscar Petersen at Lowes this year. i got mine from either Palatine or Hortico.

Peter Schneider has a great selection, but he's only shipping in the fall now (October) and it‘s just too late for me to plant then. His roses are well rooted band sized. Wish i lived closer to him!

flowers - yes!! I can see it already...make it happen!! :) :)

Carol, I would love to make it happen, but I'm scrambling for spots to plant the roses waiting for their place in the garden. Decisions, decisions! A white garden has been on my garden bucket list for a long time.

:) :) :)