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'Sonia' rose Reviews & Comments
Discussion id : 124-536
most recent 25 DEC 20 HIDE POSTS
Initial post 25 DEC 20 by Giessen
It must be a cut rose rather than a garden rose. Blooms come in singles, their shape is quite pretty, but what I mostly like is the texture of the petals. They seem to be very silky and tender, however they withstand heat very well. What I do not like very much is a very high susceptibility to rust and p. mildew. In our climate (zone 7b, Vienna, Austria) it can be a disaster. This rose requires intence care to have it in its best performance.
Discussion id : 77-611
most recent 15 APR 14 HIDE POSTS
Initial post 15 APR 14 by CybeRose
Plant and Soil, 104(1): 93-98 (1987)
The effect of root temperature on rose plants in relation to air temperature
M. Zeroni, J. Gale

Rose plants (Rosa hybrida ‘Sonia’=‘Sweet Promise’) were grown in heated (minimum night temperature 17°C), and unheated greenhouses with or without root heating to 21°C. These trials covered 6 growth cycles extending over two winter seasons. In the heated greenhouse, root heating did not increase yield, flower quality or plant development. In the unheated greenhouse, root-heated plants grew as well as those in the air-heated greenhouse as long as the air temperature did not fall below 6°C. When minimum night temperatures fell below 6°C, growth, yield and quality were reduced, irrespective of root temperature.

Daytime plant water relations were studied in plants growing at 6 different root temperatures in the unheated greenhouse. Leaf resistance to water diffusion was lowest at optimal root temperature. Total leaf water potential was not significantly affected by root temperature.
Discussion id : 70-843
most recent 5 APR 13 HIDE POSTS
Initial post 5 APR 13 by goncmg
One type of rose I am addicted to is a 1970's Grandiflora...............but somehow this one and I never clicked. It began as a "florist" rose and was deemed garden worthy and actually it truly, truly is for it does quite "well" in the natural light and soil, is surprisingly hardy, reblooms well, decently disease resistant as measured against its peers. But, for me, never a "stand out" and odd that it got (1) Big Press on/near release and (2) was assigned the GR class which was, then, nearly a marketing death/second class designation. It ISN'T really a GR, either. It is a hybrid tea with too small a bloom, albeit often a perfectly shaped and heavily substanced bloom. I don't think I ever had one cluster on this one! But yes, the bloom, perfect though it may be, is small and perhaps seeing the promise in the form and substance as per exhibition, Meilland/Star decided on GR since it sure doesn't fit FL and HT, with the blooms so small, would take it off the blue ribbon circuit. And it sure DID and may STILL win those ribbons! And it remains rather available, too but for me, personally, not a stand-out. Want a landscape shrub with almost tiny, perfectly formed blooms? Track down Little Darling from 1956. Want a "GR" that fits no class but has a notable color? Try Prominent. Or try Aquarius which shares that "Not a FL but too small for an HT" trait(s) and has a more interesting color (for me). Or Love, now in some resurrection phase and available everywhere it seems and is red/white and now probably getting some appreciation at long last as it was seen as a near-clunker when released in 1980. Sonia is around, 40 years later, for a reason but has never appealed to me................
Discussion id : 447
most recent 2 NOV 12 SHOW ALL
Initial post 25 FEB 04 by Anonymous-797
A teenage friend of mine just purchased a Sonia Rose and would like to know how it should be planted and maintained.
Reply #1 of 2 posted 13 MAY 03 by Unregistered Guest
When I plant my roses, I use blood meal, cottonseed meal, epsom salts, manure (cow or sheep - I've used both) and peat moss. in an older This Old House magazine, they gave the proportions, but I believe it was about 2 C. cottonseed meal, 1 C. blood meal, oh, and bone meal (1 C.) and about 1/3 c. epsom salts. You mix that into equal amounts of dirt, compost (manure), and peat moss. Where do you live? iN the colder parts of the country, plant the rose deep, and mulch good for winter. I usually plant DEEP and have the dirt built up around the rose, forming a "moat". when I water, I fill the hole and it gradually seeps in. In the late fall, after a freeze, I fill the hole in, with the dirt from around the bush, so the area where the canes grow out of - the crown -is totally covered! I then put leaves all around. A friend puts wire or fabric around hers, and fills it up with dirt and leaves, so most of the plant is protected. That's alot of info, but if you have any questions, I'll try to help!! Paula
Reply #2 of 2 posted 2 NOV 12 by mtspace
There's a good article about the care of roses <a href=">here.</a>
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