Species roses utilized -- show and tell

Here’s a new glauca x pendulina line bred seedling that blossomed for the first time today.

Parentage, (Gentle Annie x (glauca x pendulina) X (Cardinal Hume x (glauca x pendulina).

Orange is the last thing I would have expected from this cross. Reverse is silvery white.

Several more seedlings from this cross are yet to flower. Some look to be more double.

Second of the Duchesse de Brabant x Helrou seedlings to flower. I think this one would make a great mini tree rose. Should be disease resistant.

Link: www.helpmefind.com/gardening/l.php?l=2.63168&tab=1

I think both the above seedlings are amazing as they are, for what they are. Congratulations Robert!

The orange from Pendulina and Glauca is a bit surprising, until you remember what all is behind Cardinal Hume. The blush pink one is beautiful.

Thanks George. I wish I had thought to spread the pollen on that orange one yesterday. I thought of an interesting cross last night.

Kim, I made up a page for the orange after I posted the photo. Of course you’re right. (see link)

‘Frank’ Naylor’ is in there amongst other things. I’m really beginning to think one or more of the glauca x pendulina seedlings I received is likely an accidental hybrid with a modern garden rose carrying yellow and a gene for repeat. There were at least a few seedlings. I grew the seedlings together and used pollen from all of them in my crosses. Jeff Stover has them now and has separated them out. Hopefully he could figure which is the culprit.

All I know is very little of the blue foliage has come through. It shows itself now and then. I’ll have to keep line breeding to see if I can tease it back out.

The pink mini looks to be a keeper if only for the novelty of the lineage alone. I hope it stay smooth. Vigor is good.

As far as I can tell this the only mini helenae China Tea on the planet. Considering helenae is synstylae, I think argument could be made to call it a mini polyantha.

Eventually it would be fun to ask Burling to try it on some mini trees. Sometimes I get nice fragrance from the blossoms. I bet the pollen is fertile too.

Link: www.helpmefind.com/gardening/l.php?l=2.63171

Jon I really like your rose with the reddish foliage on the underside. I bet it has an interesting look when the wind blows.

Robert I like your second generation glauca x pendulina hybrid. Its simple and I like the slight yellow tint. The second of the Duchesse de Brabant x Helrou seedling is also very nice.

Long before I could obtain it or even see a photo of it, the listed breeding of Cardinal Hume intrigued me. I love the Red Hots fragrance, the color, flower shape and how the thing generates those lollipops of flowers. It amazed me at how easily it rooted and I quickly began using it for root stock for roses which suffered from chlorosis in the highly alkaline soil here. I still have the Baby Faurax tree I budded with it more than ten years ago. The Hume trunk has to be nearly two inches in diameter. It appears to be very long lived used this way. It also doesn’t seem to suffer the same sun burn issues here everything else used as a stock does, and it never seems to suffer from iron deficiencies. I am very happy the same color, petal texture and scent came through into Purple Buttons.

‘Cardinal Hume’ is a remarkably easy seed parent and as Kim says, a great rootstock. It roots easily and pushes buds very well. Kim shared it with me over 10 years ago and it’s worked out great. Not only does CH perform well in alkaline soils, it apparently works well in acidic conditions.

Some time ago I offered to bud the old HT ‘Los Angeles’ for Gregg Lowery of Vintage Gardens. Soil conditions at the display gardens in Sebastopol are unusually acidic. We discussed under stocks and he mentioned how well CH does there. It’s worked out very well.

Is ‘Cardinal Hume’ viciously thorny? Can I ask some who has it to do me a favour and take some diagnostic type photos to put on HMF or on here? I have a plant here that I’ve had for nearly 15 yrs that was originally an understock. The top died off and I kept the understock thinking that some time in the future I could graft something else onto it (I never did as I got multiflora instead). It strikes easily and repeats sporadically after its main flush in spring. It is, however, viciously thorny… one of the worst I’ve got actually… on par with bracteata I would say. Canes are long and limber. Not too great in the black spot resistance dept. either… quite leafless at the moment. I was actually thinking of putting it with multiflora to develop a new understock too!

CH has prickles but average or less in number for me.

Simon, I’m not aware of anyone actually using Cardinal Hume commercially as understock. It has the usual prickles, but it’s absolute claim to fame is continuous bloom, that color and a fragrance that smells exactly like the hot cinnamon candy, Red Hots, taste. Do the flowers of your understock look like this? And, what do they smell like?

I’ve finally got germinations of R. foliolosa x R. blanda. I am pretty sure that they are full crosses.

Foliolosa tends to shed pollen very early, but I hit the flowers VERY early. The flowers were essentially barley formed. Like, the petals were green when I emasculated them… not pink/mauve.

I am very happy of this cross.

blanda blooms very early and foliolosa blooms late. I had the flowers in the fridge and forgot about them until I spotted them. I had another cross planned, but I still like this combo. And I harvested pretty early too… on August 20th.

Both are American roses, both lack thorns (but they have them.)

blanda has fuzzy leaves, and foliolosa has shinny “ladder” like leaves.

Who knows how the plants will look.

But I do know that I’ve read of a similar cross of this before in an old ARS magazine. And I’ve heard of wild crosses of these two roses. But I don’t see this possible since they both bloom at two distinctly different periods.

Kim… I’ll point you to a discussion on HMF about the plant in question, complete with images. At one stage I thought it looked a lot like a rose called ‘Will Scarlet’. I can’t say that I’ve ever stopped to smell this one. I checked for flowers today, however, and there was none. It’s getting and autumn flush of new growth so maybe I’ll get some more flowers too. Also, I noted that the thorns were mostly on the major stems and not on the newer ones, however I was getting ripped to pieces trying to weed under it that I cut it back hard earlier so I could weed around it safely so a lot of its growth is new growth (<4 months old).

Link: www.helpmefind.com/gardening/l.php?l=2.6577&threadID=40453&qcID=40499&tab=32#p40499

Thank you Simon! OK, just from the flower, I would have to say it COULD be Dr. Huey. That blamed thing can fun the gamut from nearly blush pink to almost black; from absolutely gorgeous to “what the devil were they THINKING?!” But, the sepals are all wrong and the stipules are fringed, therefore out of Multiflora. Your potential identification of either Wilhelm or Skyrocket is probably spot on. There is no telling what and independent may use for root stock. Early in the English Rose craze here, a very well known rosarian here in California purchased many from Hortico in Canada. Without going into the details of their business practices or well deserved, hard earned bad name, he had a garden full of Bride’s Dream! Sounds quite a bit like your garden of Queen Elizabeth, doesn’t it?

LOL!

At one point, one of my first English roses I ever had (Ambridge Rose, which I hated) died because the ding dong that placed it in the pot I bought it from put the tag around the buried graft. Needless to say, it strangled itself at about year 5, lol. It sprouted some WEIRD species that looked European in nature, but I still have no clue what it was. It was definitely not canina or rubiginosa. I wish I had preserved it.

Jadae, that is such a funny story!

:0)

As a rootstock… could be a mischievous but fun way to distribute an underappreciated rose - kind of like Ellen Willmott and her “ghost”. ;0)

Peggy Martin is not a species rose but surely very close to one. I am pretty sure it has r. wich. in it. Anyway I collected some OP hips off of it last Fall and got a bunch of seedlings this Spring. Although Peggy is pretty much once blooming I got several seedlings which are blooming right away which I hope means they are repeaters. When I was repotting these seedlings to a bigger pot, one of the seedlings broke off at the ground level leaving behind all its roots and I was sick as it was the most promising seedling as it had a nice round plump light yellow flower bud on it so it was probably crossed with one of my yellow tea roses. So I took it and make three little branches out of the top and put them in a sort of hot house on a heat pad and I kid you not within less than a week all three had sproted out new leaf growth and have not stopped since and they all have flower buds on them already. The reason for this story is do you think This seedling would be a good candidate to use for a rootstock as aggressive as it is? If you know the story of Peggy Martin it is one tough rose.

Patrick

Thanks Kim… I’m pretty sure it isn’t Dr Phooey. This bush has been a repeat bloomer for me over the last 15 yrs. It gets one long flush throughout the whole of spring and then I get another flush towards the end of summer and scattered blloms through autumn right up to winter. The flowers are consistent in form and colour and are never deep coloured; always this hot red with pink tones.The canes are long and lax, arching out from low down from the base in hybrid musk style. I also have Dr Phooey here and it never repeats and has that dark rich colour you mention (not to mention a lovely contrasting white/grey caused by its coating of mildew). It also doesn’t have any of those bizzare fringed ‘sepals’ at the base of each of the flower stalks. This plant never gets mildew but is a black spot magnet here though it responds by dropping its leaves and growing a new fresh set that lasts it until winter. The more I look at it the more I think it could be ‘Will Scarlet’. Both it and its parent ‘Skyrocket’ are available here in Australia as well.

Ok… back to species talk :slight_smile:

Speaking of species… has anyone tried Rosa longicuspis or ‘Weddling Day’? Mine (sinowilsonii, I believe), is such a bomb-proof plant and its new foliage is a sight to behold (I’ll photograph mine tomorrow and post it) and is such a deep, rich dark red on matching dark red stems. The semi-mature leaves have an almost bronzey sheen (which, if we were talking about minerals we would describe it as chatoyant because it has an almost metallic sheen as seen in the mineral called Tiger’s Eye)and the fully mature leaves are enormous! It set seed easily and they germinate easily. I haven’t tried pollinating it with anything yet and all attempts at using it as a pollen parent failed this year.

Always fun to start a rather open-ended thread and see where it goes. :wink:

Jon, I like your red-leafed seedling. If it has pink blossoms as well, it could be quite appealing.

Simon, yours is a species I would like to play with (when I have room for a house-eater!). I’ve read that R. sinowilsonii is essentially a larger-leaved form of longicuspis, and apparently, they are ginormous. Now if only one could hang an 8" flower on it! (Oh, interesting: R.l.s. has been used in breeding patio roses, per HMF.) Does it have the same fragrance? How huge is your plant, and what zone are you in?

Patrick, Peggy Martin might be a good root stock in and of herself. Someone some time back crossed R. palustris with R. rugosa (Tom S., perhaps?) and I remember thinking such could make an interesting potential root stock given the seashore and swamp habitats those two species can tolerate. P.M. fits the description of the kind of rose I imagined that hybrid could be.

Working down there, I was stunned by many of the things that did survive in Plaquemines, but I suppose things didn’t steep as long as in New Orleans.