Search found 100 matches

by Paul Olsen
Sun Oct 15, 2017 6:33 pm
Forum: Rose Hybridizers Association Forum
Topic: Project for large rose hip X R. Pimpinellifolia. Questions..
Replies: 22
Views: 3088

Re: Project for large rose hip X R. Pimpinellifolia. Questio

My suggestion is 'Suzanne' or Rosa laxa x R. altaica or R. spinosissima. 'Suzanne's' hips are dark red, likely because of the influence of Rosa spinosissima in its pedigree. However, in my experience 'Suzanne's seeds can be difficult to germinate. Rosa laxa has a much better flesh/seed ration than R...
by Paul Olsen
Mon Sep 18, 2017 9:35 pm
Forum: Rose Hybridizers Association Forum
Topic: No rest for 'Sleeping Beauty' (aka 'Dornroschen')
Replies: 6
Views: 1017

Re: No rest for 'Sleeping Beauty' (aka 'Dornroschen')

I'm pleased to learn the Montreal Botanical Garden is intending to acquire five 'Rosy Vision' roses for its rose garden from Palatine Roses. Again, it's a very good shrub rose cultivar and I hope it can get established in several more North American rose gardens to reduce the possibility of it getti...
by Paul Olsen
Sun Sep 10, 2017 2:58 pm
Forum: Rose Hybridizers Association Forum
Topic: No rest for 'Sleeping Beauty' (aka 'Dornroschen')
Replies: 6
Views: 1017

No rest for 'Sleeping Beauty' (aka 'Dornroschen')

As far as I know, the last 'Dornroschen' hybrid registered is the Canadian 'Rosy Vision' (L83 x 'Dornroschen'), developed by Dr. Neville Arnold and his wife, Catherine, in 2006. This rose cultivar is very beautiful, having double pink flowers and is crown hardy to a Zone 3 climate. Only one rose gar...
by Paul Olsen
Mon Aug 07, 2017 11:43 am
Forum: Rose Hybridizers Association Forum
Topic: Rosa moschata breeding options
Replies: 4
Views: 805

Re: Rosa moschata breeding options

Christopher, Thanks very much for your lengthy reply. Your work developing a repeat flowering Damask is most interesting, and I have no doubt you will eventually do it. Your theory about the development of Damask rose fragrance makes sense. What I call the "disagreeable fragrance" of Rosa laxa is li...
by Paul Olsen
Thu Aug 03, 2017 6:40 pm
Forum: Rose Hybridizers Association Forum
Topic: Rosa moschata breeding options
Replies: 4
Views: 805

Rosa moschata breeding options

In 2016 I obtained a plant of Rosa moschata, and I believe it's ultimate source was from Peter Beales. Although I mulched the shrub heavily in the fall, I was surprised it winter killed to ground level. No sign of stem survival in the spring, so I thought I had lost it. But it did survive and grew q...
by Paul Olsen
Wed Aug 02, 2017 9:11 pm
Forum: Rose Hybridizers Association Forum
Topic: 'Canadian Shield' rose
Replies: 12
Views: 1623

Re: 'Canadian Shield' rose

I did about 30 crosses with 'Canadian Shield', further using 'Morden Centennial' and 'Bill Reid' as staminate parents. I only got one hip to set, but didn't record its other parent (I rarely label rose crosses, figuring out the parentage when I see selections flowering). Next year I'll use mixed pol...
by Paul Olsen
Sun Jul 23, 2017 12:14 pm
Forum: Rose Hybridizers Association Forum
Topic: Some seedling pics
Replies: 23
Views: 2711

Re: Some seedling pics

Joe, Although the parentage of Morden 6910 is given on HMF Roses, I don't agree with it. I've always speculated it's parentage is Rosa gallica/R. kordesii, and if so that would likely rule out its development at Morden. I don't recall Morden doing such breeding work in the 1950's or 60's, for exampl...
by Paul Olsen
Sun Jul 23, 2017 8:29 am
Forum: Rose Hybridizers Association Forum
Topic: Some seedling pics
Replies: 23
Views: 2711

Re: Some seedling pics

Joe, The 'Tuscany Superb' x ?Morden 6910 is what I would expect a rose of this cross to look like. It's very beautiful, of course, and is ideally what roses in a landscape should look like - having a graceful or at least a semi-graceful appearance as it appears to be in the photo. Morden 6910 is a r...
by Paul Olsen
Wed Jul 19, 2017 7:57 pm
Forum: Rose Hybridizers Association Forum
Topic: Spinosissima Hybrids
Replies: 10
Views: 1472

Re: Spinosissima Hybrids

Generally speaking, it's best to use Spinosissima cultivars as the staminate parent with garden roses. The primary reason is that often the breeder has good knowledge of the fertility of some garden rose culktivars and not of Spinosissima cultivars. Also, simple Spinosissima cultivars' seeds usually...
by Paul Olsen
Mon Jul 17, 2017 7:40 pm
Forum: Rose Hybridizers Association Forum
Topic: Developing double flowers by selfing
Replies: 5
Views: 803

Developing double flowers by selfing

The development of double flowers, for example, of Gallica, Rugosa and Spinosissima roses was likely by self-pollination, so this isn't a new phenomena in roses . Yet there doesn't seem to have been much work done using this breeding technique to develop roses having double flowers. It appears there...
by Paul Olsen
Thu Jul 06, 2017 8:57 am
Forum: Rose Hybridizers Association Forum
Topic: 'Canadian Shield' rose
Replies: 12
Views: 1623

Re: 'Canadian Shield' rose

Meilland International (France) is the agent and distributor of the Vineland roses for Europe. I imagine 'Canadian Shield' will be soon available in European countries.
by Paul Olsen
Wed Jul 05, 2017 7:41 pm
Forum: Rose Hybridizers Association Forum
Topic: The Future Development of Canadian Roses
Replies: 57
Views: 2534

Re: The Future Development of Canadian Roses

Most roses propagated in Canada are on their own roots. Nearly all, if not all, the Canadian developed Explorer, Parkland, Canadian Artist and the new 49th Parallel rose cultivars are. There are only a few nurseries left in the country propagating roses by budding them, and they generally use Rosa m...
by Paul Olsen
Sat Jul 01, 2017 5:10 pm
Forum: Rose Hybridizers Association Forum
Topic: 'Canadian Shield' rose
Replies: 12
Views: 1623

'Canadian Shield' rose

Today, it being Canada's 150th birthday, I thought it would be appropriate to comment a little bit about ''Canadian Shield' (RSM Y8 x 'Frontenac'), which was introduced by the Vineland Research and Innovation Centre this year to honour the country's sesquicentennial. I have one shrub of this rose cu...
by Paul Olsen
Mon Jun 26, 2017 11:25 am
Forum: Rose Hybridizers Association Forum
Topic: Follow Up from a Beginner
Replies: 13
Views: 1838

Re: Follow Up from a Beginner

Roselynn, One of the most fragrant roses cold hardy to a Zone 3 climate is my Rugosa 'Pacific Pearls' ('Hansa' x 'Charles Albanel'. It has a completely different scent than the clove-like one of 'Hansa'. Flower form can be somewhat erratic though, and so it will likely never become a popularly grown...
by Paul Olsen
Sun Jun 25, 2017 11:10 pm
Forum: Rose Hybridizers Association Forum
Topic: Follow Up from a Beginner
Replies: 13
Views: 1838

Re: Follow Up from a Beginner

Roselynn, If one of your goals is to develop fragrant roses, I highly recommend using 'Minette', likely a Rosa damascena cultivar, in your breeding programs. Although a Zone 4 rose, this cultivar will survive and grow well in a Zone 3 climate (last year it was fully cold hardy in mine) and produce f...
by Paul Olsen
Mon May 22, 2017 10:52 am
Forum: Rose Hybridizers Association Forum
Topic: Ross Rambler #4
Replies: 20
Views: 2216

Re: Ross Rambler #4

Cold hardy (Zone 2/3) species or near species like Ross Rambler #4, having white flowers, to me are especially valuable for developing yellow roses for cold climates. But it's not just optimizing the production of progeny having yellow flowers; it's also developing interesting shrub forms, which is ...
by Paul Olsen
Wed May 17, 2017 10:21 pm
Forum: Rose Hybridizers Association Forum
Topic: 2017 germinations.
Replies: 20
Views: 2559

Re: 2017 germinations.

Roselynn, Unfortunately, the quality of bare root Corn Hill Nursery roses can't be trusted. It will send roses claiming they are No. 1 1/2, when actually they are more like No. 1/4. This makes it very difficult for them to survive, and it's likely they often don't. This is my recent experience with ...
by Paul Olsen
Wed May 17, 2017 8:00 pm
Forum: Rose Hybridizers Association Forum
Topic: 2017 germinations.
Replies: 20
Views: 2559

Re: 2017 germinations.

Roselynn, I'm curious where you think you can obtain 'Fru Dagmar Hastrup' rose in Canada. Sadly, even well known Rugosas like this cultivar aren't readily available in this country anymore. Yes, I know non-commercial sources for it. By the way, 'Fru Dagmar Hastrup' is one of the parents of an excell...
by Paul Olsen
Thu May 11, 2017 10:15 am
Forum: Rose Hybridizers Association Forum
Topic: Follow Up from a Beginner
Replies: 13
Views: 1838

Re: Follow Up from a Beginner

Roselynn, You may be interested to know Dr. Parminderjit Sandhu will be in Calgary on June 13/14 to give a talk to the Master Gardeners Association of Alberta about this institution's rose breeding program. Here is an opportunity for you to talk to a professional rose breeder. Contact the MGAA for t...
by Paul Olsen
Sat Mar 18, 2017 11:02 pm
Forum: Rose Hybridizers Association Forum
Topic: Species-Modern Crosses
Replies: 109
Views: 17620

Re: Species-Modern Crosses

One thing that intrigues me about the Rugosas 'George Will' and 'Roseraie de l'Hay' is their narrow leaflets. How did they come about? 'George Will' - Frank Skinner, the originator, likely stated its parentage incorrectly. Rather than (Rosa rugosa x R. acicularis) x a "garden rose", because it's a d...