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Can someone explain to me exactly what the term "sulks in heat" means (which I see for this rose and a few others)? What exactly does a rose do (or not do) when it's "sulking" due to heat?
I would love to try growing this rose, but I live in an area with hot dry summers. I'd like to have some idea what to expect before trying a rose that might do badly in my climate. Thanks for any information anyone can give.
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Views of this rose vary widely. In my slightly-acid clay, with hot dry summers, it is cheerful all the time.
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It is an English-bred rose. If the distributor says "sulks in heat" it means it won't flower as much as it does in cooler conditions.
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#3 of 10 posted
13 MAR 14 by
CarolynB
Thank you both for your replies. For a rose this pretty and unusual, I could live with it not blooming during the hot summer, if it does that here. If it defoliates or gets a lot of leaf burn from the heat, however, that would be a different story. Any comments on that? (I had one rose that always looked nice in early spring, then always looked completely horrible with leaf burn all through the summer. So, I hope to avoid encountering that again.)
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It doesn't defoliate in my garden, doesn't burn more than average. Your best bet is to find a rose nursery in your area that stocks it, and have a look at it there in mid-summer.
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#5 of 10 posted
14 MAR 14 by
CarolynB
That's good to know, thank you. As soon as I can figure out where to put one, I'll probably give this one a try.
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#6 of 10 posted
16 MAR 14 by
Kit
In my USDA zone 10, Sunset zone 20 garden I don't have any problem with this rose sulking in hot weather, but I live in an area where the marine layer comes in most nights and with very little difference in nighttime temperatures through the year (avg. night temp is 42F in December and 52F in August), so the cool nights may be giving these roses - I have four of them in various exposures - a break from the heat they may need.
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In the past I have been one of the people to have said that Rhap. in Blue languishes in the heat. I figure I need to update this. In Australia Tesselaar's released it ownroot and when I got mine ownroot I planted it in the ground where it grew ok early in the spring and as soon as summer hit it went to sleep and dropped all its leaves. After a few years of this sulking I yanked the plant out and to my surprise I found the most enormous root galls on it. It was as though the plant had cancer! Straight away I knew that's why mine does so poorly! It can get enough water to start ok but as soon as the weather warms up its compromised roots can't supply enough water to it so it shuts down. I decided to try and strike cuttings of it and some took. The best one was selected and planted out in the garden again and so far, coming into its 2nd year in its new location, it is a completely new plant and does not seem to languish at all during summer... so if your plant does seem to languish the first thing I would do is dig it up and check the roots for any reason that might explain it doing poorly. Then, if you find something like I did, strike cuttings of it and try again. It's been a few years now and the plant seems strong and healthy so I am assuming the issue I found is confined to the roots and making cuttings seems to eradicate the issue, though I haven't lifted it to confirm this.
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Don't nematodes cause root galls? However I have had the same experience. A small plant bought from Bunnings in 2002 never thrived and eventually died. A cutting grown plant in 2010 has done much better.
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#9 of 10 posted
15 NOV 16 by
sutekesh
Galls are caused by the bacteria Agrobacterium tumefaciens found in the soil. Had two cases myself this year with huge galls at the graft just under the soil surface. After reading up on the subject, I destroyed both plants. I did think about taking cuttings but didn't - after reading Simon's comment, maybe I should have.
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I was sent cuttings from an area that had problems with root galls. They all struck, but I unpotted one to check, and was concerned enough to destroy the lot. Have felt guilty ever since when I meet the donor - what if it was just callousing? - but I don't think so.
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Initial post
9 JUN 16 by
Kit
In my USDA zone 10a Sunset zone 20 garden Golden Celebration, as a freestanding shrub, is about 20' wide by 12' tall growing in partial shade. Reliably fragrant, heavy first and last flushes but reasonably floriferous throughout the year. I'd recommend it to anyone on the west coast looking for a large deep-butter yellow rose for the garden, p'raps not as a cutter though.
Most leaves from the first flush of the year are senile by June and for the plant to look good need to be plucked.
Flowers are produced from late February till early January, last flush of growth comes in around the winter solstice and blooms in early January just as our summer type weather abruptly ends.
If left in an unattended area of the garden with lower branches unpruned this rose will tip-root and produce very vigorous shoots, to 4' first spring, so you may find it suddenly crowding something it was twenty feet from last year. If you want more shrubs keep an eye out so you can move these while still small (the heat makes it advisable not to transplant here tween July and November unless you pluck off all leaves and keep a hawk-eye on hydration.
Large specimens hold up to sun better than many Austins, but no Austin in my climate has a leaf that can hold up more than five months. If anyone can gainsay that, let us know!
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Initial post
27 MAR 16 by
Kit
I think my 'Sweetness' has hit its preferred size, for the second year in a row the top blossoms are at 15 feet, around 3 meters, and she spreads to about 25 feet or 8 meters wide.
Extremely reliable producer of very fragrant blooms.
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Has anyone else noticed there plant of First Impression is virtually without prickles? Mine is an own root and has ZERO prickles on it anywhere. Very quick repeat, very healthy and heat resistant, too.
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#1 of 3 posted
7 SEP 12 by
Kit
I have one with exactly one large thorn, as wicked as any could be but beyond lonesome; and mine by the way is just as fragrant as Sunsprite, ya'ani (ie) - evanescently to unreliably but occasionally fantastic.
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#2 of 3 posted
6 AUG 15 by
styrax
Is the fragrance heat-dependent (more or less fragrant when it is warm/cool), like some other yellow?
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Mine has thorns. Not as many as most of my roses, but a decent amount. I bought this rose hoping it would be thorn-free, but it's not :(. It is VERY healthy though, and always blooming! Well worth it ^_^
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