Search found 17 matches

by Paul G Olsen
Wed Sep 24, 2014 11:07 am
Forum: Rose Hybridizers Association Forum
Topic: Rugosas - Why the lack of breeding activity?
Replies: 65
Views: 7234

Re: Rugosas - Why the lack of breeding activity?

Rob, I have grown it in Thunder Bay, Ontario (Zone 3). I also established it at the Edmonton, Alberta Devonian Botanic Garden rose garden, but apparently it's no longer there. It winter kills somewhat in Zone 3, although it will produce flowers fairly well. I never thought of it before, but perhaps ...
by Paul G Olsen
Tue Sep 23, 2014 11:38 pm
Forum: Rose Hybridizers Association Forum
Topic: Rugosas - Why the lack of breeding activity?
Replies: 65
Views: 7234

Re: Rugosas - Why the lack of breeding activity?

Checking the progeny of the Rugosa 'Snow Pavement', I note there are only a few cultivars. One interesting one is 'Sointu', developed in Finland by Peter Joy in 1994. It has small, light pink fading to white, semi-double flowers. Height of the shrub is 100 - 120 cm. The staminate parent is Rosa mult...
by Paul G Olsen
Sun Sep 21, 2014 11:03 am
Forum: Rose Hybridizers Association Forum
Topic: Rosa multiflora pollen wanted
Replies: 5
Views: 737

Re: Rosa multiflora pollen wanted

Thanks Johannes. I'll take you up on your offer. In answer to your question, I've seen a reference it is. But there was no scientific evidence to back the statement up. It's something that should be looked into more though. There is a Rosa woodsii in the Maple Creek, Saskatchewan cemetery that is ve...
by Paul G Olsen
Sat Sep 20, 2014 12:10 pm
Forum: Rose Hybridizers Association Forum
Topic: Rosa multiflora pollen wanted
Replies: 5
Views: 737

Rosa multiflora pollen wanted

Can anyone supply me with Rosa multiflora pollen? I want to make a cross of this species with Rosa woodsii next year. 'Ames Climber' (Rosa multiflora x Rosa blanda) is available to me, but I want to develop a cold hardier selection of this species hybrid (Rosa blanda is the same as Rosa woodsii).
by Paul G Olsen
Thu Sep 18, 2014 3:57 pm
Forum: Rose Hybridizers Association Forum
Topic: Rugosas - Why the lack of breeding activity?
Replies: 65
Views: 7234

Re: Rugosas - Why the lack of breeding activity?

I just realized I now have the means to develop another potential Rugosa breeding line to develop dwarf, compact Rugosas. Many years ago I crossed the 'Ottawa' Rugosa with Rosa wichurana and obtained several seedlings, but only one of them survived. I named it Rugwich1. However, I haven't had a plan...
by Paul G Olsen
Mon Sep 15, 2014 12:17 am
Forum: Rose Hybridizers Association Forum
Topic: Rugosas - Why the lack of breeding activity?
Replies: 65
Views: 7234

Re: Rugosas - Why the lack of breeding activity?

Robert Erskine's 'Waskasoo' appears to be a truly dwarf Rugosa in a Zone 2/3 climate. Its height is about 75 cm. and its width 60 cm. It hasn't been propagated or sold by a commercial nursery, except I've had Brentwood Bay Nursery on Vancouver Island propagate it for me. Since its parentage is 1/4 R...
by Paul G Olsen
Sun Sep 14, 2014 6:09 pm
Forum: Rose Hybridizers Association Forum
Topic: Rugosas - Why the lack of breeding activity?
Replies: 65
Views: 7234

Rugosas - Why the lack of breeding activity?

Rugosa roses are the ideal type of rose for growing in northern (Zone 2/3) climates. The shrubs are cold hardy to these regions, having large, fragrant flowers that repeat their bloom. Yet it appears their development has slowed to a trickle. Very few cultivars have been introduced in the last 20 ye...
by Paul G Olsen
Sun Sep 07, 2014 3:18 pm
Forum: Rose Hybridizers Association Forum
Topic: Rugosa seedlings
Replies: 14
Views: 1793

Re: Rugosa seedlings

Paul,

I'll take whatever you can send me. I'll find a place to plant them in Baudette, which is just across Rainy River (where I live) on the Minnesota/Ontario border. Then I'll have easy access to them. I'll send you a mailing address later.
by Paul G Olsen
Mon Aug 25, 2014 10:27 am
Forum: Rose Hybridizers Association Forum
Topic: How common is this?
Replies: 3
Views: 570

Re: How common is this?

Charles, I think this is a valuable selection, possibily for introduction and certainly for further breeding. It reminds me somewhat of 'Louis Jolliet', which is compact and quite low growing (generally about 60 cm. tall), in a Zone 3 climate. Interestingly, your op 'George Vancouver' (probably self...
by Paul G Olsen
Sun Aug 24, 2014 6:16 pm
Forum: Rose Hybridizers Association Forum
Topic: Canadian hardiness
Replies: 23
Views: 2014

Re: Canadian hardiness

Paul, Thanks for your comments. Rosa arkansana definitely doesn't die back annually. If that was the case, then a lot of dead wood from the past and previous years would be found surrounding the new plant growing in the spring. This never happens. Furthermore, flowering would take place much later i...
by Paul G Olsen
Sat Aug 23, 2014 2:57 pm
Forum: Rose Hybridizers Association Forum
Topic: Canadian hardiness
Replies: 23
Views: 2014

Re: Canadian hardiness

A few comments about Rosa arkansana. It's fully hardy to Zone 2. I've seen many populations of it in Zone 2 and 3. None had any winter kill. It's a very tough rose, since it often grows on poor soil sites where Rosa woodsii and Rosa acicularis (the three native species roses located on the Canadian ...
by Paul G Olsen
Sun Aug 03, 2014 11:16 am
Forum: Rose Hybridizers Association Forum
Topic: Use of Rosa blanda/woodsii in breeding
Replies: 28
Views: 3445

Re: Use of Rosa blanda/woodsii in breeding

It's astonishing that apparently little work has been done using 'Double Carlos Red' ('Albertan' x 'Carlos Red') in a breeding program. It's a remarkable development by Robert Erskine, who first crossed 'Athabasca' with Rosa woodsii and then crossed a selection with 'Carlos Red' (Rosa woodsii). The ...
by Paul G Olsen
Thu Jul 31, 2014 11:02 pm
Forum: Rose Hybridizers Association Forum
Topic: R. arkansana x Applejack
Replies: 6
Views: 1224

Re: R. arkansana x Applejack

Interesting cross. But compare the quality of this flower to 'Assiniboine', which is 'Donald Prior' x Rosa arkansana. Big difference. So perhaps it matters regarding the direction of the cross to get the ultimate size and colour of the flowers. Rosa arkansana still has potential to use in breeding p...
by Paul G Olsen
Wed Jul 30, 2014 11:53 am
Forum: Rose Hybridizers Association Forum
Topic: Joyce Fleming
Replies: 10
Views: 1735

Re: Joyce Fleming

I had the pleasure of meeting and having a chat with Joyce at the First All-Canadian Rose Show held at the Hamilton, Ontario Royal Botanical Garden in 2008. Previous to that we had corresponded a bit, when I lived on Vancouver Island. In my opinion 'Suzanne' is the most influential Canadian rose eve...
by Paul G Olsen
Thu Jul 24, 2014 12:37 pm
Forum: Rose Hybridizers Association Forum
Topic: Use of Rosa blanda/woodsii in breeding
Replies: 28
Views: 3445

Re: Use of Rosa blanda/woodsii in breeding

A few things about Rosa woodsii. 1. Rosa woodsii is quite tolerant of shade. It is often found growing in poplar bluffs on the Canadian Prairies, for example. 2. It is often stated that Rosa woodsii and Rosa acicularis hybridize with each other. Yes, there is some overlap in bloom. But generally spe...
by Paul G Olsen
Wed Jul 23, 2014 12:41 pm
Forum: Rose Hybridizers Association Forum
Topic: Use of Rosa blanda/woodsii in breeding
Replies: 28
Views: 3445

Re: Use of Rosa blanda/woodsii in breeding

I believe it's now accepted by botanists that Rosa blanda is just a variation of Rosa woodsii, which is what I've believed for many years. There is a great variety of difference in the appearance of shrubs in Rosa woodsii populations, including the amount of prickles on their stems. It's no accident...