Summer roses in South Africa
L G
9 years ago
So I thought that while some of you are still eagerly awaiting spring, I will post some photos until its your turn to take us through winter!
- Nan Mac
Spiced Coffee
Lago Maggiore, my bluest blue
Figaro Panarosa
Arctic Ice (not typical flower)
Rosafrica
African Earth
Julia's Rose
Koko loco
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redwolfdoc_z5
9 years agoredwolfdoc_z5
9 years agoRelated Discussions
Buck roses for deep south summers
Comments (2)I've grown about a dozen Buck roses in San Antonio, Texas and my favorites are Prairie Sunrise, Prairie Harvest and Quietness. None of them ball and they are all fragrant. Prairie Sunrise and Quietness are the more fragrant of the three to my nose. Quietness has very few thorns and the other two have moderate thorns. They might get a little blackspot now and then (I have no roses that don't B/S some) but they are never badly infected. They don't tend to get huge either. I wouldn't want to be without these three. Happy rose gardening!...See MoreOrganic roses in South Africa and thoughts about life and health
Comments (30)I found this article about roses and drought: http://paulzimmermanroses.com/care/summer-care/should-you-water-your-roses-during-a-drought/ The roses in my personal garden haven’t been watered in over a decade. And that includes during a drought. but then I read this in our rose breeder's newsletter: http://www.ludwigsroses.co.za/newsletter/ The way trees drink Scientists who study forests say they’ve discovered something disturbing about the way prolonged drought affects trees. It has to do with the way trees drink. They don’t do it the way we do — they suck water up from the ground all the way to their leaves, through a bundle of channels in a part of the trunk called the xylem. The bundles are like blood vessels. When drought dries out the soil, a tree has to suck harder. And that can actually be dangerous, because sucking harder increases the risk of drawing air bubbles into the tree’s plumbing. Plant scientist Brendan Choat explains: “As drought stress increases, you have more and more gas accumulating in the plumbing system, until they can’t get any water up into the leaves. This is really bad news for the plant because this is like having an embolism in a human blood vessel.” Like a human embolism, the gas bubbles stop the flow of fluid. If that persists, it means thirst, starvation and eventually death. Choat is from the University of Western Sydney in Australia, a region that has seen years of record-breaking drought. He wondered: How much drought does it take before trees start choking on air bubbles? He and a team of researchers studied 226 species of trees around the world, including desert trees, rain forest trees and many others. They discovered that for most, it doesn’t take much drought at all. “So this is the key thing,” Choat says, “that it would only take a small shift in terms of the moisture environment, the temperature … to push these plants across the threshold.” The threshold between drinking and choking, that is. The reason there’s so little margin of error is that trees have to finely balance eating and drinking. To eat, they open holes in their leaves, called stomata, to absorb carbon dioxide. But the more they do that, the more they lose water by transpiration through the stomata. Lose too much, and they have to start sucking harder — and risk a deadly embolism. Choat’s research, in the journal Nature, shows that it doesn’t take much drought before trees start to self-destruct. But what about trees that have evolved to live in really hot, dry places? They’re sippers, not gulpers. Plant scientists like Bettina Engelbrecht figured they’d have a larger margin of safety before they choke. “Instead,” she says of Choat’s research, “we find, well, it’s all the same — everyone is right at the edge and has a very risky strategy.” Engelbrecht, at the University of Bayreuth in Germany, studies rain forest trees. “Now, we have to worry about all of them,” she says. “We have to really deal with the problem at the global scale.” That’s because temperatures are rising around the globe. That makes drought more likely and more intense. Big droughts have hit southern Europe, Russia, Australia and the U.S. in recent years. The first 10 months of 2012 were the warmest ever in the continental U.S. Along with the heat came widespread drought, which still persists in the Southwest. Nathan McDowell, a plant scientist at the government’s Los Alamos National Laboratory in New Mexico, actually puts trees under plastic to see how they deal with less water and more heat. He says trees are adaptable, up to a point. “Now we’re changing that climate range really fast,” he notes, “faster than any of the living plants here have experienced. So can they change fast enough to adapt to that? You know, the preponderance of evidence right now is saying that [at] lots of locations around the world, they’re not adapting fast enough.” When they don’t adapt, they stop growing. Beetles and other insects invade. If droughts last long enough, the forests just die, and get replaced with something else. Please help me to understand this Straw.... What I've noticed in the past with severe droughts myself is that once a plant has reached it's threshold no amount of water can make it grow and live again...and if it does, it is usually riddled with all kinds of fungal (and other) diseases and bad insects. How can not watering your roses during a drought be a good thing, as stated in the site on the top?...See MoreSummer romance, Savannah and South Africa
Comments (3)From what is visible, they look great. I wouldn't be concerned with blooms after replanting / repotting. They adjust to changes. Also, presuming it is hot where you are? What nice roses you have access to at your home depot - very lucky. We have a very poor selection where I am, no new roses, just same old names year after year, decade after decade....See MoreKordes South Africa
Comments (15)Cynthia, yes it survives well for me. I have 2 of them, both from Palatines & on multiflora roots. Planted bud union 3-4" below ground. I do not winter protect them, they die back to the soil line but have always come back very nicely each spring, so crown hardy-YES, cane hardy-NO. I do try to keep a 3-4" layer of wood chips mulch over the entire bed & I think this helps prevent freeze-thaw cycle damage to the roots....See MoreL G
9 years ago
seil zone 6b MI
9 years ago
kentucky_rose zone 6
9 years ago
Brittie - La Porte, TX 9a
9 years ago
rosecanadian
9 years ago
bethnorcal9
9 years agoKen (N.E.GA.mts) 7a/b
9 years ago
s
9 years agokathy9norcal
9 years agorosynut
9 years agoAll from Ludwig's roses. What about Knysna and my all time favourite, Rosanna Jacobs, not forgetting Anne Lorentz
L G
9 years agorosynut
9 years agoI stay in Krugersdorp and run the facebook page for Northern Rose Scoiety, with our headquarters at Ludwig's Roses; Ludwig is our long standing chairman and founder. I am the Vice Chair person. If you are not a member of the NRS already, please consider joining. Phone Petrisia at Ludwig's 012 544 0144 for more info. The first picture. Knysna again and then Novalis that was given to me by Ludwig to try out but this lovely Kordes Lilac does not like our hot summers and gets burned by the sun but I love it anyway.
L G
9 years agos
9 years agoL G
9 years agolast modified: 9 years agorosecanadian
9 years agos
9 years ago
jessjennings0 zone 10b
7 years agojjpeace (zone 5b Canada)
7 years agojessjennings0 zone 10b
7 years agolast modified: 7 years ago
Vaporvac Z6-OhioRiverValley
7 years ago
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