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First, I'm sorry for your loss. Do you have a rose bush or single stem roses? I'll assume the latter. It is very hard to get a satisfactory rose from cuttings unless the rose has its own rootstock. Single stem roses are often hybrid tea roses. These do not grow on their own roots but are grafted onto another rose with more vigorous roots. On its own roots your rose may not be winter hardy. That said, it is worth a try. Remove any blooms and leave only 2-3 sets of leaves. Cut the stem at the bottom looking for a thin green ring just under the "skin". This is the part of the plant that sends water up to leaves and photosynthesized food down to roots. Buy rooting hormone and follow the instructions here: https://www.gardeningknowhow.com/ornamental/flowers/roses/roses-from-cuttings.htm. Here is a link with pictures: https://www.wikihow.com/Propagate-Roses. Good luck.

Le sugiero que haga una búsqueda en Internet de "cultivadores de rosas al por mayor". La información del precio no está disponible en este sitio web.

You are in Zone 9b it appears. When you plant roses, consider what direction of your property gets the most sun throughout the day. Roses love lots of sunshine. Then after looking up to consider the sunshine, look down at the soils and the drainage of the area. Roses do not like to be in continually wet soils. Check out the rose growing and care articles on our Gardening Know How website. Feel free to ask questions!

Osiria is only hardy from zone 7 and warmer. It is a hybrid - has 2 parents - and just like with children, no seed grown plant will have all the features of the parent. Please read this article before making a final decision: https://www.gardeningknowhow.com/ornamental/flowers/roses/gardening-with-osiria-roses.htm

I'm not sure what you are asking but I'll take a guess. Rose roots spread out more than they go down. When transplanting, a deep dig isn't necessary but try to cut a wide 24 inch diameter circle around the plant. Use your shovel to reach under the rose one shovel-length deep. Please post again if I mistook your question.

Rust is a fungus and a fungicide is needed to control it. I like an earth friendly one called Green Cure. You can get it on line at Planet Natural or at amazon.com. Mix it at the Cure Rate on the label and spray it on the bushes every 5 to 7 days at the cure rate for five spraying intervals. Then you should be able to apply it once every three to four weeks at the cure rate to keep the foliage nice.