I found this link http://www.themediterraneangardener.co.uk/roses/drought-tolerant-roses/ but it contains the ones I don’t like: Iceberg, Ramblers (R. Wichuriana), Rugosa … and I don’t know about the list of Rambler-hybrid. Any info. on future breeding these hybrids?
I like Basyes Blueberry, root is deep. I like Lynnie, zero mildew. Any other drought-tolerant roses? Thanks.
The roots on Rugosa seedlings are very long for the amount of above ground growth, I would have to guess ,on mature shrubs, the root mass would be quite large.
lol a mature rugosa can send woody runners right through fences, like a spear through a shield. Its kind of amazing.
Hi- I just returned from a Mediterranean holiday. There’s a scarlet rose that was very common in public gardens there- I saw it in Malaga, Nice, Cadiz and a couple of other spots. Same rose, in full bloom and doing spectacularly well at the end of a hot Mediterranean summer. No idea what it is- I’ll try to link to a photo here.
Also got a bit of a kick from the translation for the French Félicité et Perpetué. The article suggested Everlasting Fidelity which, while not wrong, doesn’t acknowledge the probable source for these names; any good Catholic (or lapsed one like me) will recognize Saints Felicity and Perpetua from the endless Litany of the Saints on Good Friday. For some reason the two saints are always invoked as a pair.
Anyway- if anybody recognizes this cultivar I’d be curious to know its name. Thanks.
Rosa xanthina spontanea, a yellow species rose, is both cold-hardy and drought-tolerant for me. It blooms earlier in the season than most other roses so if you want to use it in hybridizing you will probably have to store pollen. Also, it is diploid.
The soil I grow roses in is quite deep. Past first year there us no supplementation to rain with on average very dry end of spring and summers. Up to six month without appreciable rain and with some hot dry wind episodes.
Rugosa is moderately drought tolerant: beyond the limit it dries all at once. If strong its roots are not numerous.
Bracteata’s limit I do not know. Nor sempervirens, banksiae, roxburghii to name some.
All these have numerous rather vertical strong roots.
I had assumed bracteata to be drought tolerant by growing in TX, but I just googled R. bracteata Texas and then looked at the distribution map of it as an invasive weed. It is only in the southeast from Houston area, not even as far north as College Station, so it needs a lot of rain as well as heat or it would be all over by now, like multiflora in the north of U.S.
Rosa arkansana should be a really good source of drought tolerance. The roots are coarse and maybe difficult to transplant and deal with. I have a genotype that reblooms nicely that is quite healthy I’ve shared with people over the years. It is stippled and from Morris, MN.
Another source would be the “white prairie rose” from down in northeast TX that Warren Lewis first described. A close relative of R arkansana I think. But the one in commerce and breeding is not white. Sorry, forgot to look up proper Latin name before writing.
I posted this in “Crystal ball” thread, but post here again, hopefully I get some answers as to why a once-bloomer as a seed-parent can give rise to always-blooming offspring.
Hi Gvarden, from Teresa: I checked on the lineage of my Flower Carpet Coral: it’s Repandia x floribunda Red Summer. Repandia is a once-blooming, strong fragrance Hybrid Wichurana, which explains why F.C.Coral is drought-resistant. I don’t understand why a once-blooming seed-parent like Repandia can give rise to always blooming F.C.Coral. Thanks for any info.
Repandia is The Fairy x seedling of wild species Rosa Wichuraiana (Memorial Rose, widely available) This helps to make F.C.Coral 100% disease-resistant. My Flower Carpet is in a wet swamp with tiny glossy, light green foliage. The thorns are very wide-spaced apart, more low-thorn than the “almost-thornless-Austin-claim” Queen of Sweden. I love my Flower Carpet for its almost smooth stem, glossy tiny foliage, and always blooming. I never water mine for the past 7 years. It does well in alkaline clay soil.
Lady Elsie May is Repandia x hybrid tea Gruss an Angeln. Flower Carpet Coral is Repandia x floribunda Red Summer.
Lady Elsie May is a nightmare & naked with blackspots, stiff spreading canes, ulgy bush shape & sparse foliage, thorny. It doesn’t bloom when over 90’s. Someone offered me a free one but I refused … I already saw how bad it looks at my local library, 5 minutes away.
Flower Carpet Coral is a compact bush, dense foliage, low-thorn, very DR, blooms regardless of temp, 100 degrees or 40 degrees. The difference between using a floribunda vs. hybrid tea is amazing: more compact & round bush-shape, and heat-tolerant.
When dwarfed, as a general trend, synstylae types crop of repeat bloom. In fact, they have the potential for repeat bloom only rivaled by non-climbing chinas – in terms of non-modern roses. The entire line of roses stemming from Repandia, Grouse, White Immense, whatever… also has some hybrids which only become repeat blooming once a period of dormancy has been over. Both White Drift and Spring Fever do this. In other words, they sit and sprawl after dormancy, and then begin rebloom about a month after everything else has began blooming, but then they begin to everbloom from each new tip.
In other words, I do not think synstylae derivities are not immediately as straight forward as something like modern floribunda x ( once-bomming cinnamonae type x modern floribunda). They are peculiar, especially since the majority of them originated as true ramblers, with all of those genetics involved.
Coral Meidiland sets hips here, for what it is worth. FC Coral and CM are farily similar aesthetically, but LEM is sort of a dog here.
I think what PacificJade is saying is that there are no hard fast rules when it comes to rose genetics, they are more like guidelines…