Graft your roses in mid-summer somewhere around August, because there’s a better chance the graft will take and the new rose will thrive. Select the shoot, you are going to be grafting onto another plant.For the best results, choose a stem from which the bloom has just faded.
Sterilize your knife. The easiest way to sterilize your knife is with ethanol or isopropyl alcohol. Get a clean rag or cloth damp with the alcohol. Wipe the blade, making sure you get all the sides of the knife. Be careful not to cut yourself and let it dry for a few minutes.
Cut a T on the stock. With the knife, cut an inch-long T shape into the bark of the stock. The best place for the T cut is near the middle of the stem. Cut and trim a stem. Cut off the stem you want to use, leaving a 2-inch (5-cm) section in the middle. Make sure that section of stem has at least one bud, where a new leaf could grow from the stem.
Cut the scion from the stem. Place the knife on the stem above the bud eye. Insert the blade deep enough into the stem to penetrate the bark.
Insert the scion into the stock immediately. Make sure the bud eye is facing upward, this means the stem is facing the right direction. As you insert the scion into the stock, push the scion all the way into the bottom of the T. Secure the graft with grafting tape.
Give the plant plenty of water. Grafted plants need lots of water. For the next two weeks, water it daily to ensure the soil stays moist. Trim the first buds from the scion. Once the scion starts to create new growth on the stock, it will begin to grow new buds. Trim off the first three or four buds that grow until the graft is fully healed. Let the tape fall off on its own.
See that the shoot which you are attaching is in the right direction facing upwards.
Steriliser your knife before cutting the plant stock or else you could end up with an infected plant that wont last long and the process would fail.
This process is very simple and easy to do provided you are a plant lover and you can give the time and attention it requires. I am patiently waiting for the result and look forward to getting a beautiful rose plant of a different colour.