|
|
jmattson 
-
-
|
extremely cold hardy. could probably try it in zone 3.
|
REPLY
|
-
-
|
St. Swithin is disease resistant in zone 6B, Kentucky, without spraying fungicide. Very easy care. The blossoms are radiant with a light but sweet scent. Generous bloomer with old fashioned look.
|
REPLY
|
|
In my hot humid climate it is always full of black spot. A disaster!
|
REPLY
|
|
in my cold in winter, humid in summer climate, it gets very little or none. we had heavy rains this past summer and it was clean while graham thomas, five feet away, spotted up.
|
REPLY
|
-
-
|
i've grown this for two summers in minnesota in a shady spot. sets hips and is very hardy.
|
REPLY
|
|
Thank you for sharing your experience.
|
REPLY
|
-
-
|
Extremely black spot resistant in my test garden.
|
REPLY
|
|
'Graham Thomas' has certainly been a productive parent. I notice MR is being grown in two zone 5a gardens and sold by Rosarium in Spokane, WA. I wonder if this might be a good alternative for those of us who can't grow GT?
|
REPLY
|
Reply
#2 of 9 posted
26 AUG 23 by
Ericchn
|
Star roses and plants is listing the hardness zone of MR as USDA 5-9 so I think it’s worth a try. But for me it doesn’t look like Graham Thomas so much, the plant is more like a very big traditional hybrid tea rose, even the flower color is a bit different from that of GT.
|
REPLY
|
|
I know I can't have the real GT, alas, but this one in photos looked like a similar growth habit and flower shape.
|
REPLY
|
Reply
#4 of 9 posted
27 AUG 23 by
Lee H.
|
Are you saying that GST is too tender for your area?
|
REPLY
|
|
I live in upstate NY, along the Mohawk River, so in a frost pocket. A number of borderline tender roses have not survived the winter for me, despite being covered. I tried 'Sunflare' twice, alas, as it is a favorite of mine.
|
REPLY
|
Reply
#6 of 9 posted
27 AUG 23 by
Lee H.
|
That’s discouraging. I love mine. Have you tried growing it own root? In my own experiences with zone pushing, an own-root rose may be killed to the ground, but often still come back in the spring. That’s not usually the case grafted.
|
REPLY
|
|
I have several own root roses which do come back, as you say, but they don't grow very much during the rainy summers. I am keeping them because they are extremely rare, and I am still trying to figure out how to propagate roses in my climate without having to buy an expensive misting system.
|
REPLY
|
|
Have you tried Mike Shoup's ziplock bag technique? This is a variant of it (replace dot with .)
heritagerosesdotorgdotau/articles/rose-propagation-ziplock-bag-technique/
Mike recommends about equal amounts of potting soil and aerator, eg perlite - I don't use any aerator but our potting mix here must be very different from what he uses.
It needs about 6 weeks of warm weather - might be borderline late for you this season.
|
REPLY
|
|
this rose, now in october, is between 6-7' feet tall in its bed at the lyndale park rose garden in minneapolis, mn in z4/5. looks to be healthy, with a very upright growth pattern. i would say it has good cold hardiness judging from the size and vigor of these bushes.
to me as well, it looks more like a hybrid tea than a graham thomas, which i have in my garden.
|
REPLY
|
|
