How do you start a rose bush from another one?

Question

How do you start a rose bush from another one?

Answer 1

take a piece of the old one and pull a part of its roots out and plant that...

Answer 2

Take a cutting of newer wood. Not the old brown stuff and not the real green stuff just the wood in between. Make it the size of a pencil. Dip the bottom end in rooting hormone and stick it in some good potting soil. Keep it moist. The cutting should look like a pencil sticking in the dirt. No leaves!! It will grow or die. A good rule of thumb is if you just do 1 or 2 they will die. If you do a lot they will all live and you will not know what to do with them. The best time to do this is in the spring when you trim your roses but if its a friends and you just can't wait go for it. In the spring you have more to work with because you have everything you cut off to work with.

Answer 3

Cutting,  layering & division are good ways to propagate roses quickly and easily.

For cuttings, use stems that have recently had some flowers. A good cutting length is about 7 inches, cut with a 45 degree angle. Remove the leaves from the lowest half part of the cutting. Alow two or three leaves to remain at the top.

"Roses root best if the cutting has some leaves still attached, to provide sugars from photosynthesis as well as root-promoting hormones. Some varieties will root from leafless cuttings, but it's better to allow two or three leaves to remain. "

http://www.rkdn.org/roses/propagate.asp

Don't allow the cutting to dry, or  expose it to temperatures that are too high or too low .

Difficult varieties often benefit from  wounding the base of the cutting, either by making 1/2- to 1-inch vertical slits through the bark, or by slicing a strip of bark off one or two sides of the base of the cutting with the clipper blade. This helps send out roots all along the wound.

Dip the cutting in rooting hormones to improve the success rate.

You'll need to maintain adequate moisture, both in the soil and in the form of humidity in the air. Place the cuttings in pots of moist sand, potting soil, or a perlite/peat mix, then cover them with a plastic bag,  or inverted two-liter soft drink bottle with the top cut off, creating a small tent or "greenhouse" to maintain high humidity around the cuttings.  Make sure the plastic is not touching the cutting at all. Avoid overheating & keep out of direct sun. Put the cuttings in bright shade, such as against the north wall of a building or under a tree, to allow rooting without too much heat build-up. Once roots have developed, remove the plastic covering.

Most cuttings root best in the spring or early summer, when the weather is warm but not miserably hot. Early in the season, some varieties will have good roots in as little as two weeks & most varieties can be rooted in three to four weeks. At other times the process takes longer -- up to seven or eight weeks.

It's  best to divide roses  by April-May.

Air or soil layering can produce roots  in 28 days.

http://www.ndsu.nodak.edu/instruct/chlee...

Here's a forum on getting rose cuttings to root:  

http://forums.gardenweb.com/forums/load/...

P.S. If you don't use the tent/greenhouse method for your cuttings, you'll need to provide humidity to the plant (by misting) & you'll have to make sure the soil doesn't dry out.

Good luck!!!   Hope this is helpful.