HelpMeFind Roses, Clematis and Peonies
Roses, Clematis and Peonies
and everything gardening related.
most recent 7 DEC SHOW ALL
Initial post 8 NOV 12 by Jay-Jay
This rose is susceptible for Pseudoperonospora sparsa, or false mildew.
Reply #2 of 4 posted 7 APR 16 by sutekesh
Jay-Jay is referring to downy mildew see
Reply #3 of 4 posted 7 APR 16 by Jay-Jay
You're right Sutekesh, I chose to use the Latin name, for else I only could translate the Dutch "Valse Meeldauw"; to False Mildew", but it of-course is Downy Mildew!
Stems get purplish-blueish spots, that expand and the next year those canes/stems die.
The leafs get at the underside a grayish layer, the leaves rot or dry depending the weather and fall off!
Reply #4 of 4 posted 7 DEC by MKGarden
Thanks, Jay Jay for posting your opinion. It’s nice to see a review by a friendly face. Keep up the amazing job you’re doing on YouTube! I’m a huge fan!
Reply #5 of 4 posted 7 DEC by Jay-Jay
Best MKGarden, You're welcome,

Which job on YouTube?
I'm not aware of doing anything on YouTube. That has to be a mix-up.

Best regards, Jay-Jay.
most recent 15 JUN 22 SHOW ALL
Initial post 30 NOV 09 by CarolynB
In the photos here, the coloring of Grand Prize looks similar to Easter Basket. I'm wondering which would be the better one to get (I know -- subjective, and can vary with climate). Has anyone here grown both, and can you compare them for me?
Reply #1 of 3 posted 11 JUN 22 by Michael Garhart
I am 13 years too late, but for future buyers:

Easter Basket is a big rose, that is very easy to grow. Grand Prize is an average floribunda with all of the pros and cons an average floribunda usually has.
Reply #2 of 3 posted 12 JUN 22 by Kathy Strong
Ha ha. . .I like Grand Prize better than Easter Basket. Grand Prize is a spectacular rose when grown on fortuniana rootstock.
Reply #3 of 3 posted 15 JUN 22 by Michael Garhart
Rich Baer told me the same when it was new.
most recent 23 JAN 22 SHOW ALL
Initial post 4 NOV 07 by CarolynB
I thought this rose was very striking and beautiful when I saw it at Regan Nursery. Can anyone tell me about its disease resistance?
Reply #1 of 1 posted 23 JAN 22 by Michael Garhart
Ignore. Wrong rose.
most recent 30 SEP 20 SHOW ALL
Initial post 12 OCT 08 by Leslie Davis
I think Moonstone is a beautiful rose and I just had to have it for my garden. I was disappointed to find out it doesn't do well in the hot summers of the valley. First the aphids and then the thrips ate it up and then the blistering heat took over for the next 4 months. Oct now and I'm just getting some decent blooms again after 5 months. I would caution anyone who lives where it gets above the 90's from obtaining this rose, unless you're willing to wait for those few months it isn't that hot and you don't mind thrips damage in the months they're present.
Reply #1 of 10 posted 17 DEC 10 by Penelope
Too bad. This was on my "Gotta Have it List". Our summers here in Dallas are just like yours, generally getting to around 105 in August. I think 108 was our high last summer.
Reply #2 of 10 posted 17 DEC 10 by RoseBlush

Thank you for sharing this information. I have added that "this rose prefers cool climates" to the rose page so that other site guests will have the information when they are making their purchasing decisions.

Reply #3 of 10 posted 17 DEC 10 by Kathy Strong
Hmmm-- this rose does not like MY cooler climate. It thrives in East San Diego in my mother's garden, but here on the coast, most blooms ball up and refuse to open.
Reply #4 of 10 posted 17 DEC 10 by RoseBlush
Should I also add "prefers dry climates" ? It's possible that 'Moonstone' can't take the prolonged heat of the central valley of California, but can handle the coastal heat of areas like San Diego ?

Reply #6 of 10 posted 17 DEC 10 by Kathy Strong
I actually think that what this rose needs is heat . . .
I'm really surprised to see someone saying it does NOT like heat.
It does really well at the rose shows in the desert areas.
Reply #9 of 10 posted 12 AUG 15 by boopie
I agree that this rose can take the dry heat. I live in zone 10 in So Cal and this rose is one of my better performers in the late summer months. Half of my roses I summer prune in August as they just don't perform well in the heat. But this rose produces reliably beautiful blooms, growing in full sun. I have a Francis Meiland growing next to Moonstone. Depending on the time of the year, it is hard to tell them apart. But in the heat Francis looses it form, becomes bleached out and just ugly. So I prune Francis in August, but I let Moonstone bloom all summer. In cooler weather I think it is a nice rose bush, but I think it's strength is in how it handles the summer heat. Very nice rose for cutting, and it keeps its form and color in my garden in the heat, when other roses can't.
Reply #11 of 10 posted 30 SEP 20 by fieres
My Moonstone in Malta (Europe) stands up to the summer heat well which varies from 90 to 98 during the day. Actually it is the only rose that continues on blooming (albeit with smaller blooms) during this heat when all the other roses take a rest, I water it twice a week and feed it once every two weeks. It faces east and has sun from morning (about 7.00 am) till 1pm thus avoiding the afternoon sun altogether
Reply #7 of 10 posted 27 AUG 12 by CarolynB
Are you saying that Moonstone doesn't do well when temperatures are in the 90s? Or that it does well in the 90s but it doesn't do well when temperatures are in the 100s? I live on the borderline between the central valley and the east bay area, and I'm wondering if this would be a good area to grow this rose. Our summer temperatures are usually in the 90s, but only get into the 100s occasionally for a few days at a time.
Reply #8 of 10 posted 27 AUG 12 by RoseBlush

It's hard to say if the rose will do in your garden. It has take me years to find the roses that can handle my heat, which is in the high 90s and low 100s for most of the summer months.

What I have found is that most roses will crisp when it gets to 100+. i looked at the roses that managed well in my heat and found that roses that had thick petal substance were the roses that held up to the heat the best. The patent on Moonstone says that the petal substance is medium-thick.

I'd suggest you look around your garden and determine which plant characteristics work best for you and use that as a guideline for selecting new roses.

Reply #10 of 10 posted 12 AUG 15 by Nastarana
You might want to consider what exposure would be best. When I gardened in the Central Valley, I found that only the toughest roses, like 'Manchester Guardian Angel' could tolerate a west exposure, with its' hot, dry winds. I wonder if 'Moonstone' might be best placed to the north side of your house or the east. If you are like me, the east side is prime real estate which fills up fast.
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