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Initial post yesterday by HonzaPM
Sorry, this is some other variety. Different foliage with touch of rugosas, flowers too dark for light pink ´Complicata´, totally different variety, for sure.
PhotoDiscussion id : 106-925
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Initial post yesterday by HonzaPM
Different foliage with touch of rugosas, flowers too dark for light pink ´Complicata´, totally different variety, for sure.
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Initial post 5 FEB 12 by TammyY
Can that zone be correct? 4a-5b...
Reply #1 of 5 posted 5 FEB 12 by HMF Admin
Not very likely...
Reply #2 of 5 posted 23 DEC 14 by Madame Hardy
Centifolia and Moss roses reliably grow in Zone 4a. The local University Extension service often posts specific details about hardy roses for an area.
Reply #3 of 5 posted yesterday by AquaEyes
I'm adding to this very late, but I think it's important anyway. Personally, I'm not a fan of maintaining the Moss class, since it is defined by just one trait -- moss -- which can be transmitted to offspring from breeding with other classes. If I had my way, "moss" would be just a descriptive trait, and the roses currently classed as Moss Roses would be moved into classes which better describe their other characteristics. Some Mosses are clearly Centifolias with moss, others like 'Salet' and 'Mousseline' are better described as Portlands or Damask Perpetuals with moss, 'Princesse Adelaide' and a couple others are (Hybrid) Bourbons with moss, and 'Mme Louis Leveque' is really a Hybrid Perpetual with moss. Ralph Moore bred the moss trait into miniatures and others.

The question and response in this thread illustrate how lumping together very different roses into a Moss class -- simply because they have moss -- isn't really helpful anymore. The original question was about cold-hardiness of this particular rose, 'Mme Louis Leveque'. An answer referenced cold-hardiness of Centifolias and Mosses -- but the "Mosses" referenced are really "mossy Centifolias", and not Mosses in general. To give gardeners a better idea of how cold-hardy an individual Moss rose would be, we should look deeper. Cold-hardiness of 'Mme Louis Leveque' would be based more on its Hybrid Perpetual lineage than that it shares one trait -- moss -- with a more cold-hardy 'Centifolia Muscosa'. A more dramatic example would be assuming one of Ralph Moore's mossy Miniatures would be as cold-hardy as 'Centifolia Muscosa' because both are classed as Mosses, based on sharing but one trait.

Reply #4 of 5 posted yesterday by Andrew from Dolton
Moore used 'Centifolia Cristata' for many of his mossy miniatures, the crested ones, it isn't really strictly speaking a moss rose at all.
Reply #5 of 5 posted yesterday by AquaEyes
Yes, for his crested hybrids. But his mossy hybrids were derived from 'William Lobb', and possibly some others.

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Initial post 13 days ago by Isobel
Can anyone recommend a large (6m or larger is fine) climber with dark/deep red blooms that will thrive in the SW of WA once established....... preferably Heritage, preferably fragrant
Reply #1 of 50 posted 13 days ago by Patricia Routley
'General MacArthur Cl.' 1923 or 'Marie Nabonnand' 1941
Nice to see your name Isobel.
Reply #2 of 50 posted 12 days ago by Margaret Furness
In my garden (Adelaide Hills), Marie Nabonnand is a medium climber re height; it spreads further than it climbs. It has a lot going for it - flowers well through winter, has few prickles, and is fragrant. It's red, not deep pink as in the description.
Then there's good old Black Boy (1918), and more shapely flowers in Climbing Crimson Glory, 1940s, which I haven't grown. I don't think either are more than medium climbers.
Reply #7 of 50 posted 11 days ago by Isobel
Thank you Margaret, I already have Black Boy and Crimson Glory. I need something as dark and rich as Black Boy if possible. Your insight that Marie Nabonand grows horizontally rather than vertically is useful. I am growing them on the paddock fence up the driveway to the house, so that would be most convenient. How red is Marie Nabonand, I thought it had more pink in the shading?
Reply #6 of 50 posted 11 days ago by Isobel
Hello Patricia how are you both and how is your beautiful garden? Do you still have Patricia's Secret growing? I need the deep red rose for my fenceline..... I only have 2 left to fill, out of 32. I need Alberic Barbier, which is surprisingly hard to obtain in WA and the deep red rose. I'll try to find MacArthur and Marie Nabonand and see if either of them are dark enough. I already have Crimson Glory and Black Boy as suggested by Margaret Furness. I would like something as dark and rich as Black Boy if possible. Thanks for your help.... talk again soon.
Reply #3 of 50 posted 12 days ago by billy teabag
Hi Isobel - My thoughts immediately went to the same roses Patricia suggested.
'Marie Nabonnand' is a wonderful rose - the foliage is very healthy and attractive and, once established, it repeats well, flowering through winter in Perth and the fragrance is gorgeous. It's very biddable in its habit - I've seen it used as a wall or screen, on fences and walls, up trees and up and over various structures. My plant is approx 4 metres. Prickles are rare so it's a good rose to grow near paths and gateways etc.
You might be able to find it in nurseries under the name "Beales' Monsieur Tillier", otherwise it may have to be a special request.

I also love Climbing General MacArthur. It is vigorous (though I suspect 6m would be quite a stretch) and has exquisitely fragrant and opulent blooms that are often a deep, rich pink colour rather than true red
The Perth region of Heritage Roses in Australia is planning to plant both 'Marie Nabonnand' and 'Climbing General MacArthur' on one of the pergolas at Falls Farm in Lesmurdie.

Racking brain trying to think of a healthy and fragrant repeat flowering red climber that would reach 6 metres and nothing is leaping to mind. The fragrant deep red rose I received as 'Climbing Crimson Glory' (a question mark over whether it is the real thing) is lovely but modest in size, and our 'Blackboy' has lovely blooms with a nice fragrance but the foliage often looks pretty ordinary and I wouldn't be inclined to make it a feature plant. (I'd be interested whether others find this as well).
If you are looking for a rose to plant against a wall, there are some wonderful healthy and floriferous shrub roses that exult in Perth conditions and will reach impressive heights if given something to lean against. Mutabilis is one of these.
Perth Region of Heritage Roses in Australia are having a Christmas get-together at Falls Farm this Saturday afternoon/ evening and you'd be very welcome to come along if you are free - an opportunity to ask others with first hand experience in local conditions. If you need any help finding any of these plants we can help with propagating material.
Reply #4 of 50 posted 12 days ago by Margaret Furness
Yes, Black Boy has huge sentimental value - so many of us grew up with it - but it wouldn't be my first recommendation.
Reply #5 of 50 posted 12 days ago by Andrew from Dolton
Would 'Climbing Étoile de Hollande' do any good?
Reply #8 of 50 posted 11 days ago by Isobel
The photo of Cl Étoile de Hollande looks the right colour. The strong fragrance is also very appealing. How does the colour compare to Black Boy. I would really rather have an Heritage rose but I'm guessing since none of you have suggested an older rose that there are very few or none in this colour?
Reply #9 of 50 posted 11 days ago by Margaret Furness
A few older ones. Bardou Job 1882 is a parent of Black Boy, but it's only a small climber. Cl Cramoisi Superieur 1885 is a China, not much scent. Noella Nabonnand 1901 is scented.
Marie Nabonnand is red but not the dark colour of Black Boy.
Reply #12 of 50 posted 11 days ago by billy teabag
I'm wondering what you have in mind when you say 'heritage' rose Isobel, as all the varieties suggested here so far are heritage roses.
Reply #14 of 50 posted 11 days ago by Andrew from Dolton
Maybe some of David Austin's modern English roses could be another option. They repeat, have good red colours and scent, a more traditional shape than floribundas and hybrid-teas, some quartered and with a button eye. But I don't know how they would grow in your climate. You seem to want your cake and eat it..... :-)
Reply #15 of 50 posted 11 days ago by Margaret Furness
Many of David Austin's roses can grow very big in hot climates. "Good scent" depends on how you feel about myrrh, for many of them. I like Jude the Obscure.
The definition of heritage roses varies depending on who you talk to, but taking it as "introduced 75 years or more ago" lets us include the later Teas and Alister Clark roses. I would add the roses that the Chinese (for example) have been growing for a long time, but are recent introductions to Europe etc.
Reply #18 of 50 posted 10 days ago by Isobel
I guess I mean older roses (maybe pre 1900??) and perhaps Teas.
I've looked up all of your suggestions and of them Etoile de Hollande is dark enough for what I want. Noella Nabonand and Marie Nabonand and M Tillier are all a bit too pink in the photo. I'm not sure how close it is to the real thing! Photos are always a bit out depending on the light and the season too probably.
I like Alister Clarke. I have a few of his on the line. i'll try and take a good pic, so you can see what I'm trying to achieve.
Reply #21 of 50 posted 10 days ago by billy teabag
Do you have General Gallieni? Not a climber but a splendid Red Tea.
If good, bushy shrub roses will do the job, either alone or in groups, General Gallieni and Cramoisi Superieur will give you a good deep red colour on a very healthy and ever-blooming plant.
Alister Clark's 'Restless' and "Camnethan Cherry-Red" are also worth consideration.
Reply #22 of 50 posted 10 days ago by Isobel
I have Restless further up the fence. That's the trouble really, I already have a good number in and it has reduced my options for the gaps. A China(?) would fit the bill Margaret. Can you think of a largish dark red one?
Thank you all for you advice and expertise. I'm writing down the candidates and will follow up with more research to try and determine if the colour will fit in between Chateau d'clos Voggeott and Black Boy.
Reply #23 of 50 posted 10 days ago by Margaret Furness
Have a look at Ten Thousand Lights - the biggest China we have. Starts pink, ages red, like many other Chinas. Not a climber but will reach 3m, and you could prune it flatter than its usual solid bush.
There is Cl Cramoisi Superieur, if you can get hold of it.
But consider this: three of us have recommended Marie Nabonnand. I guess you need to see it in the flesh.
Reply #10 of 50 posted 11 days ago by Isobel
Hello Billy
Thanks for the invitation and for the offer of propagating material. I've noticed that some of the roses I'm growing seem to have pinker tones or flush pink in the cold. I put in Gypsy Boy thinking it was a red colour but it blooms more a bright pink/mauve here. We are having a very strangely cool spring. I wonder if that is the cause?
Reply #11 of 50 posted 11 days ago by Andrew from Dolton
Some of the hybrid perpetuals like 'Général Jacqueminot' make tall plants they could be trained as climbers.
Reply #13 of 50 posted 11 days ago by billy teabag
Yes - we have seen some unexpected colours too.
Are you in Perth Isobel, or further south?
Reply #28 of 50 posted 9 days ago by Isobel
We're between Donnybrook and Boyup Brook (Mumballup actually) Where the ****'s Mumballup? Half way between Yabberup and Noggerup!
Reply #32 of 50 posted 9 days ago by billy teabag
That is very funny!
Reply #16 of 50 posted 11 days ago by Jay-Jay
Naturally, I would recommend (as I always do) Cl. Étoile de Hollande. But there is some discussion, whether the real-one is available in Australia.
Not that large, but deep dark red, very fragrant and available in Australia: 'Souvenir du Docteur Jamain'
Maybe plant two, instead of a larger-one?
Of course, I do not know, if it thrives in Your climate and soil.
Reply #17 of 50 posted 11 days ago by Patricia Routley
Isobel - Yes I still have what you call Patricia"s Secret. I call it 'Wisteria Stump Seedling'. At certain times of the year, the wisteria wins, at others, the rose leaps out of the top.
I have 'Alberic Barbier' and it grows well from cutting. You only have to ask.
If the criteria is a dark/deep red climber, 'Etoile de Hollande' seems a good suggestion. Andrew Ross (Ross Roses in S.A.) is quite sure he has Etoile de Hollande' and the photo he sent me looks very similar to those from Jay-Jay. I suspect my presumed 'Etoile de Hollande' came to me misnamed from another source.
Find another place on your property for 'Marie Nabonnand'. You might find the 2009 reference for it of some interest.
Reply #19 of 50 posted 10 days ago by Isobel
I'd love a bit of Patricia's Secret/Wisteria Stump Seedling. Also a cutting of Alberic Barbier please. Also did you ever discover the real name of your found rose no.25?

Bother, I mean Alfred Carrriere NOT Alberic Barbier. I always mix the names of these two. I want the yellow buds and cream flowers. I had Alberic Barbier there but it has a pink flush in the base of the petals so I've moved it.
Reply #20 of 50 posted 10 days ago by Margaret Furness
This is what Thomas for Roses have as Cl Etoile de Hollande, but they don't send to WA. Today at least the flowers aren't dark red. It has red new shoots, as Teas do, which attract parrots (be warned).
Reply #24 of 50 posted 10 days ago by Patricia Routley
Just tell me what season you want the cuttings and I can post them.
Rose No. 25? Sorry that is an early number, way back before I computerised my garden records.
Now, I am not sure what you want. (You do know that you can search HelpMeFind for information on any rose in SEARCH/LOOKUP)
'Mme. Alfred Carriere' has a pink flush.
'Alberic Barbier' has yellow buds.
Reply #29 of 50 posted 9 days ago by Isobel
I really am mixed up aren't I? The yellow buds...... Alberic Barbier..... that's what I want.
Reply #26 of 50 posted 10 days ago by Jay-Jay
I can confirm, that Cl. Étoile the Hollande HAS red new shoots.
And lighter red flowers in summer/bright sunlight, or when the temps are high.
Reply #33 of 50 posted 8 days ago by Nastarana
For us in cold climates who think parrots are charming birds, could you please explain why attracting them would be a problem?
Reply #34 of 50 posted 8 days ago by Margaret Furness
Rosella parrots know that red new shoots on roses indicate sugar-filled sap running in them...delicious! Which is pretty clever, considering that roses aren't native to the Southern hemisphere. Cockatoos know how to tackle walnuts, too; standing on one foot and holding the walnut in the other. But none of them know that stone fruit and apples should be left to ripen.
The rose damage is mainly an irritant for the home gardener, but for display gardens it's more of a problem.
Reply #25 of 50 posted 10 days ago by Jay-Jay
At my place, Mme Alfred Carrière is the pinkish-one at the base of the petals and not yellowish in the bud-stage.
Reply #27 of 50 posted 10 days ago by Margaret Furness
I like the idea; but I would suggest that you don't let the ramblers root down (I speak from bitter experience).
Reply #30 of 50 posted 9 days ago by Isobel
Have the rambler's suckered?
Reply #31 of 50 posted 9 days ago by Margaret Furness
Ramblers mostly don't sucker (multiflora understock certainly can), but in general they will layer themselves if allowed to trail on the ground. That's partly why Dorothy Perkins, American Pillar, Hiawatha, Excelsa etc thrive on road verges in the Adelaide Hills.
Reply #35 of 50 posted 6 days ago by Isobel
Thankyou. That's useful information. I have Excelsa grown in a pot as a cutting.... I don't actually like it much so I must dig it up before it gets away! I also take your point about Marie Nabonand. Clearly I will have to get it, I'm just not sure it's dark enough for the position I'm wanting to fill. I can try some and see what they colour they are when they flower. Billie do you know of anywhere in WA that would sell any of these? Particularly: Marie Nabonand, Etoile de Hollande, Camnethan Cherry Red, General Gallieni, S. de Docteur Jamain. I can't find any of them on M's or SRG's lists. (not sure if I can name business' on this site)

Parrots are a scourge! I have trouble with '28' parrots. One year I had Buff Beauty shaping up to be absolutely gorgeous with lots and lots of buds. The next day they were ALL on the ground. Why??????
Reply #36 of 50 posted 6 days ago by Patricia Routley
I highly recommend 'Excelsa' and on a long fenceline as yours, it may be ideal. And if it suckers there, so what?
Perhaps you might give some thought to the timing of blooming. Many ramblers come into blooming for me in December, weeks after the main flush of other roses.

You can certainly name nurseries on HelpMefind. I would guess and say that those roses are unobtainable on Melville's Rose n Garden, or on Swiss Rose Garden catalogues. I know they would sell umpteen 'Marie Nabonnand' if only they would stock them. Both Billy and I could help with cuttings of "Camnethan Cherry Red" and 'General Gallieni', but I have been unable to strike 'Marie Nabonnand'.

Photos of 'Excelsa':
Reply #37 of 50 posted 3 days ago by Isobel
I seem to have most success with cuttings started around the break of season. So could you send me some of "Camnethan Cherry Red", 'General Gallieni', 'Wisteria Stump Seedling', 'Alberic Barbier' and I would like to try 'Marie Nabonand' but perhaps I should try it grafted. I would also like a grafted 'Cl. Etoile de Hollande' but it seems I may have to get that from somewhere in the east. Ross Roses perhaps? Maureen Ross has been very helpful in advising me on colours for my fence perhaps they could also supply me with 'Marie Nabonand'.
Reply #38 of 50 posted 3 days ago by Margaret Furness
I doubt they have Marie Nabonnand for sale yet, but you could ask. I haven't had difficulty striking it from cuttings, using the ziplock bag method in warm weather.
Reply #39 of 50 posted 3 days ago by Jay-Jay
How do You perform that trick, Margaret?
Would You be so kind and explain?
I'm curious!
Reply #40 of 50 posted 3 days ago by Andrew from Dolton
I only try to strike cuttings from hardwood stems put in gritty soil over winter, it would be really interesting to try this method.
Reply #41 of 50 posted 3 days ago by Margaret Furness
I've tried to add the link to the HRIAI website, but it isn't getting through. This is a variant of Mike Shoup's technique. In theory it works for any plant without fuzzy leaves. It needs at least 6 weeks of warm weather; so in South Australia I can start cuttings from mid-November till mid March.
Use ziplock food storage bags ("doggybags") about 35 x 25cm, and cut off the bottom corners for drainage. Add about 10cm of your favourite potting mix, and mix in a handful or two of an aerator - Perlite is OK but non-clumping kittylitter is much cheaper (that's what people buy to put in plastic trays for cat toilets). Fill with water to the top of the soil then close the bag and leave it to drain for a couple of hours.
Cuttings should have had a flower. For climbing roses, use a climbing branch. Thicker stems, up to pencil size, have more stored carbohydrate and should do better, but old-rose-rescuers often have to use much smaller ones. Cut off the top bud. Remove the leaves from the lower 2 nodes; these will go into the potting mix. Leave some leaves on the upper nodes (ideally 2 or more, depending on the height of the doggybag). Cuttings without leaves are much more likely to fail.
Re-cut the bottom of the stem obliquely below a bud, and scrape a bit of the bark off down the side away from the bud (about 2cm long). I dip the cutting into rooting hormone, some people use honey, some don't use anything. Make a hole in the potting mix to near the bottom of the bag, and put the cutting into it. Each bag will take 3 or 4 cuttings. Ideally they should all be from the same cultivar. If you put different cuttings in, write the name or an understandable abbreviation on each stem, with an Artline Garden Marker, otherwise they will get mixed up when you take them out of the bag. (Believe me on this!) Seal the bag and write the date and the name of the cultivar on it.
Put 3 or 5 bags in a cheap plastic tray so they can support each other, and won't stain what you put them on. Put the tray where it will get light but not direct sunlight. You can open bags to remove fallen leaves, flower buds, and dead cuttings, but make sure you re-seal them. You can blow into the bag to plump it up. If there aren't many moisture droplets inside the bag, you can add a teaspoon of water, but this is usually not necessary. It's important that the drainage holes aren't blocked, and that the developing roots aren't disturbed.
After some time (4 weeks for ramblers, 6 for Teas, Chinas and polyanthas; HTs may take much longer), look at the bottom of the bag for developing roots. When good root systems have developed, open the bag and leave it for a few days or a week for the cuttings to acclimatise. They may need some water. (If you are going on holiday, you can leave the roots to grow for several more weeks before opening the bag.) Then scoop out the rooted cutting with a handful of potting soil. Pot up (I use 12cm pots) and water in with dilute Seasol or other root stimulant. Tiny new leaves will wilt straight away so you might as well remove them. I expect to lose at least 1 in 12 plants after potting up. Protect from wind for some weeks, as the young plant will be top-heavy. Introduce gradually to sunlight. In SA in summer the plant will need daily watering; and I water weekly with dilute Seasol, alternating with a dilute trace-element provider.
It doesn't work well with Old European roses, but I don't like having suckerers on their own roots anyway.
Reply #42 of 50 posted 2 days ago by Jay-Jay
Thank You for this, Margaret!
It's a variant of using pet-bottles, like I do, but the 6 weeks of warm weather never is guaranteed over here in summer!
People might use a greenhouse to obtain that goal.
Question: Do You use 1 liter or 3 liter zip-lock bags?
Best regards and a good take-off to Christmas, Jay-Jay.
Reply #43 of 50 posted 2 days ago by Andrew from Dolton
That's fascinating Margaret thank you. Do certain types root better than others? Christopher Lloyd writes about taking cuttings 4cm long with just one node and laying them horizontally on the compost in a propagator with bottom heat. Has anyone any experience of this?
Jay-Jay I hope you enjoyed Sinterklaas Day last week.
Reply #44 of 50 posted 2 days ago by Margaret Furness
I find yellow HTs harder to strike ... which was mentioned in early Rose Annuals! Chromatella is still too hard. Ramblers are the easiest, which fits with their ability to layer themselves.
Some people doing large numbers of cuttings put them into pure kittylitter, in a broccoli (polystyrene) box - about 40 at a time.
One HRIAI member puts cuttings into gravel, with water circulating through from his fishtanks, and gets very good results very quickly. He said you have to choose the gravel to get the pH right, so it doesn't kill the fish.
I haven't tried using bottom heat.
I prefer the doggybag technique to in-ground cuttings in autumn, because there's time to try again if some fail, you can try to rescue found roses most of the year, plants can be planted out the next autumn, and there isn't the labour of digging them out of the ground eventually. Veilchenblau can become very tenacious between autumn one year and winter the next year.
The ziplock bags are labelled with dimensions, not volume. I guess they're nearer 1L than 3. Their vertical dimension limits the length of cuttings you can use.
Reply #46 of 50 posted 2 days ago by Jay-Jay
What do You mean in this context with the word tenacious regarding Veilchenblau? My English isn't that good, that I understand the quintessence.
Reply #47 of 50 posted 2 days ago by Margaret Furness
I think your multi-lingualism is impressive, and brave. I wouldn't attempt a philosophical discussion in the French I learnt at school. In Esperanto I would, because that's a language where everyone starts equal.
I meant that Veilchenblau wouldn't let go (of the ground) - it was too hard for me to dig it up.
I tried filling a ziplock bag with water. It took more than 5L, but I don't think they are designed to hold liquids. If you are going to try that technique for cuttings, I suggest you choose the bag by its measurements.
Reply #48 of 50 posted 2 days ago by Jay-Jay
Thank You for Your explanation and Your compliment.
In retrospect, I think, that that discussion was better held in private messages, not on a rose-forum.
I hope You enjoyed it.
Reply #45 of 50 posted 2 days ago by Jay-Jay
Andrew, this Year, I was a bad "boy", I think. For Sint Nicolaas didn't visit my home at all.
For Christmas I hope that Santa will bring some gifts. Maybe he will not be that harsh on me ;-)
Reply #49 of 50 posted yesterday by Andrew from Dolton
Christopher Lloyd, The Adventurous Gardener. Published by Penguin Books. 1987 edition.
Page 22.

Unusual Ways with Rose Cuttings.

We keep learning, and it is chastening to be reminded how little we yet know...
    ...With roses, grafting is still (except for miniatures) the principle commercial practice. The entire organization of a rose nursery, its machinery, equipment and labour force, are geared to rose production by bud-grafting and it would be such an upheaval to change over to the very different technique of raising them from cuttings 9or from tissue cultures) that this is unlikely to happen in the near future. But it could depend, all the same, and especially now that it is understood that roses themselves can be propagated by the very economical method of intermodal, or single-node, cuttings.
    The traditional method for preparing a stem cutting is by making the bottom cut just below the node, the top cut (unless the tip of the shoot is left intact) above a node. Thus, at least two nodes are included in every cutting and this is potentially extravagant in plant material. It is the principle reason why cuttings have never been made much used as a commercial method for propagating roses, seeing that only one node is needed for budding.
   I first learned about the single-node way of taking rose cuttings at a conference of the International plant Propagators' Society which I attended some years ago now (1970) at Nottingham University's School of Agriculture, where Dr Elizabeth Marston had been carrying out experiments.
    To make a single-node rose cutting, all you to do is to cut with secateurs (those having a scissor action, not the anvil type) half an inch above a node and two inches or less, if necessary, below it. A surprising point arising here is the fact that exposing soft intermodal pith at the cutting's base does induce rotting. You insert your cutting in a suitable rooting medium -- say half peat and half grit -- and wait for results. If, as in the Nottingham University experiment, the cutting go under mist and are given bottom heat at 65 degrees F, they root quickly. But one conference member told me that he had succeeded by inserting them straight into open ground under Add to dictionary tunnels (such as are extensively used nowadays for forcing strawberries). Twice-daily hand-watering from a can was the only attention required.
    In the actual experiment, whose results I witnessed two years later, an entire plant of the H T rose 'Prima Ballerina' was chopped up and used for cutting material, some wood being ripe, some half-ripe and some soft. This was done on 8 August and the plant made some 130 cuttings. Two years later there were sixty nine plants, nearly all of them sturdy bushes, in the experimental plot. On getting home I forthwith tried the method out for myself. I made one seedbox-full of thirty cuttings of 'Peace'; another divided between three floribunda cultivars: twelve of 'Allotoria', thirteen of 'Europeana' and seventeen of 'Red Wonder'. They went into my cold frame with its double walls and double glazing.
    By the end of August some of the floribundas were showing roots through the bottom of the box. A point I noticed was that, although each cutting had only one leaf, it was very large and horizontally space-consuming. Where one leaf overlapped another, the lower one yellowed and decayed prematurely. I should have shortened each leaf by at least its terminal leaflet, if not also the pair behind that.
    I did not disturb the cutting that autumn, the season being well advanced. They over wintered in a ventitated cold frame and many of them retained their foliage throughout. When I dealt with them, potting them off individually at the end of March, twenty-six 'Peace' had rooted, six 'Allotria', ten 'Europeana' and nine 'Red Wonder'. Not a startling result but sufficiently encouraging. If you took your cuttings a month earlier than I did and had them well rooted by early August, they could be potted individually then, instead of waiting till the next spring.
   Internodal rose cuttings have many possibilities and implications. As private gardeners growing roses for fun, we can now ask our friends fro cutting material without plunging deep into their bushes in search of heels. Commercially this economic method of getting roses on their own roots could be a boom to the container trade at garden centres. Grafted H T and floribunda roses are stunted and uncharacteristic when their roots are confined in even quite large containers. Yet the container trade has a a tremendous outlet for the sale of roses in their flowering season, when the impulse buyer can not only see what he wants but carry it off with him on the spot. Own-rooted plants might turn out to be the answer. Little is known about the performance of different varieties when grown this way, but then singularly little is known about the performance of different varieties when grafted on different rootstocks. These rootstocks are nearly all seedlings, and every one of then genetically different from the next and thus establishes a different relationship with the scion grafted on to it. On its own roots, the internodal imponderables of the rootstock will be eliminated. And so will its suckers.
    Suckers lead me to the other relevant subject of Dr marston's experiments, which was rose propagation from root cuttings. The necessary ingredient for success in propagation by this method is that a detached piece of root shall be capable, when given its independence , of making a shoot bud. Shoots are not normally produced by stems, not by roots, so the latter capacity is no to be taken for granted.
    Roses have it, as we always knew, for how else should their rootstocks sucker, as they all too frequently do? I recently had a striking example of suckering buy rose roots in my own garden. I had planted the ultra-vigorous 'Paul's Himalayan Musk' rambler to go through a Judas tree. I had struck this rose from a cutting off one in Maurice Mason's garden, so I knew it was on its own roots. The Judas tree got blown to bits in a gale and had to go, and so did the rose, since it had lost its support. After its removal the whole area up to a distance of 16ft from where the rose had been extracted became riddled with suckers from the broken roots we had left behind. Yet until then the plant had shown no inclination or tendency to sucker at all.
    Dr Marston showed that even the more specialised and man-made H T rose can be propagated from root cuttings if the stock plant is growing on its own roots (quite big 'if'; the stock plant is only likely to be growing on its own roots if it was one you propagated from a cutting yourself). In her experiment, 2-in. long root cuttings were taken in January and laid horizontally in a peat and grit mixture. They were all thicknesses, but the thinnest produced no shoots while the thickest produced shoots prematurely, before new roots had developed to support them, and these shoots withered. (in such a case it would be wise to anticipate trouble  and make stem cuttings of these shoots while they were in good condition.)
    Rather surprisingly (to me) it was found that horizontally orientated cuttings gave better results than cuttings inserted vertically, and of course, they tax the intelligence less because there's no need to remember which is top and which is bottom. No growth  substances were used, but the cuttings were gently shaken in a polythene bag with 15 per cent Captan dust, as a protection against fungal infection.
    Some cuttings were placed in a warm greenhouse with bottom heat, and these developed quickly. Others in a cool greenhouse from which frost was only just excluded took some months to regenerate, but the final take was as good. Cuttings taken in December and January gave better results than later batches in April.   
    Not one but a number of shoots are likely to develop from a root so your young shrub might have the appearance of suckering instead of growing on the normal leg. I cannot see that this should matter. Varieties used successfully include 'Fragrant Cloud' and the repulsive but ebullient 'Prima Ballerina'.
    The young plants were potted off into 3 1/2-in. pots and developed very quickly, but the first flowers born that summer were thinor even single and not characteristic. To build up a strong plant it would be wise to not to allow flowering at this early age, but to disbud, as you would a stem cutting.
   One disadvantage in root cuttings is that you are virtually obliged to sacrifice the parent plant. You can't deprive it of all its roots and then expect to keep it as a thing of beauty and a joy forever. Probably the method has no general application, but it is none the less intriguing and open to us to try who already grow roses on their own roots.           
Reply #50 of 50 posted yesterday by Margaret Furness
Thank you: a lot to think about from Mr Lloyd.
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