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(Zone 10a)  _Bleu_ Nov 29, 2018 9:22 PM CST |
| I would like to order a rose bush from Proven Winners but they list the rose as hardy for zones 4-9. Would zone 10a be too hot for this rose bush? Even if I place it in part shade? |
Name: Shyam San Francisco, CA (Zone 10b)  Rose_Guy1127 Nov 29, 2018 9:31 PM CST |
| I would refer the rose bush with the Help Me Find and the rose database here to read on other customers' experience with the rose bush. In my personal experience, I don't let the hardy zones be the determining factor when it comes to purchasing roses. What rose bush are you planning on getting? |
Name: Zuzu Northern California (Zone 9a)              |
| Some of the OGR classes (Gallicas, Portlands, etc.) won't grow well in your zone, but many modern classes will. As Shyam suggests, tell us the name of the rose and then we can look it up on HMF and NGA and see whether anyone in your zone is growing it. |
(Zone 10a) _Bleu_ Nov 29, 2018 11:56 PM CST |
| It's Oso Easy Italian Ice. |
Name: Zuzu Northern California (Zone 9a) |
| Unfortunately, all of the gardens listed on HMF are in cold zones and there are no owners listed in our database. I really don't know what to tell you about this one. I have wondered why I've never seen any of the Oso Easy roses at any of my local nurseries. It's possible that they weren't bred to take the heat. |
(Zone 10a) _Bleu_ Nov 30, 2018 12:21 AM CST |
| And you are in zone 9. That's odd. 😞😢 Oh, well... It's such a great rose to have... I think I'll just call Proven Winners, they have a number for home gardeners, and see if I can get an answer from them. Are the Oso Easy roses modern? |
Name: Zuzu Northern California (Zone 9a) |
| Yes, they're modern. I believe they're all small floribundas. |
Name: Zuzu Northern California (Zone 9a) |
| I'm wrong. I just checked the ones in our database and most are classed as shrubs, not floribundas, but they're definitely modern roses. |
Name: Shyam San Francisco, CA (Zone 10b) Rose_Guy1127 Nov 30, 2018 12:37 AM CST |
| If you truly like the rose, then I'd say, go for it knowing the possibility that the rose may not do well in your zone. That's how I grow some of my roses. |
Name: Lyn Weaverville, California (Zone 8a)   RoseBlush1 Nov 30, 2018 1:34 AM CST |
| Hi @_Bleu_ I doubt if this rose will do well in zone 10a. Of course the cold zone 10a is a indicator of the average LOW temperatures and is not a measure for heat zone, so having a better idea of where you are gardening does help. There are two primary reasons I don't think the rose will perform as you wish in your zone. The first is because of the number of petals, sixteen. I have found that roses with low petal count fry quickly in my high summer temps. The second reason is that the patent says the garden performance of the rose is good in temperatures ranging from -25C (-13F) to 30C (86F). Generally, in zone 10a, the summer temps are higher than the mid-80s. I hope this helps with your decision. I'd rather weed than dust ... the weeds stay gone longer. |
(Zone 10a) _Bleu_ Nov 30, 2018 2:39 AM CST |
Yes, Lyn, your comment helps.  In my area, there are white iceberg roses all over, hundreds of them, and there are also red roses which have fewer petals, I'd say less than 20. There are clusters of rose bushes in full sun and also in part-sun, all of them sprinkler-irrigated twice daily. In my own garden (a new garden I started last year), I have four rose bushes: a Dick Clark, a Julia Child, a single rose (possibly a Watercolors HR) and a yellow flower carpet rose plus two recently acquired climbing roses, one of which is a single. Of the four "older" roses, the one that did not bloom this summer was the flower carpet rose, the others struggled during the heatwaves, of course, but they still would bloom (the iceberg and red roses around our community too). Once the weather cooled down my plants perked up and started blooming beautifully again. I water all my plants by hand and my roses get a maximum of six hours of full sun in the summer and a minimum of 2-3 hours in winter. The red roses outside of my home facing north get more or less the same amount of sun as the ones in my garden and some of the iceberg roses may get full sun all day. I hope this description gives you an idea of where my plants live. Most of my roses and vines do not get as many hours of full sun as the labels that come with the plants suggest but I think that that works to their advantage in the heat of the summer. |
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