Roses that you grow from seed will not grow up to look like the parent plant, according to Dr. Malcolm Manners, horticulturist with Florida Southern College. In fact, he says that you might not even get the same type of plant but may instead grow a climbing rose from a bush rose seed and vice versa. One thing most rosarians agree upon, however, is that it is easy to grow a rose from the seeds within the rose hip. Some of the plants can flower within months of germination, others can take up to three years.
Remove the rose hips from the rose bush when it is red and ripe, in late summer or fall.
Cut the hip in half and remove the seeds.
Place the seeds in a strainer and rinse them with tap water.
Soak the seeds in a bowl of hydrogen peroxide (just enough of the liquid to cover them) for 24 hours. Rinse with tap water.
Gently scrub any remaining pulp from each seed using a soft scrub brush or baby's toothbrush.
Fill the planting pots with equal parts of vermiculite and sand. Water the soil until the water runs from the bottom of the pots. Allow the pots to drain completely.
Push the seeds 1/2 inch into the soil and lightly cover them with soil.
Fill the spray bottle with three parts of water and one party of peroxide and lightly spray the surface of the soil. Place the pots in plastic bags or cover them with plastic wrap and place in the refrigerator for six weeks.
Remove the pots from the refrigerator and place them outdoors after all danger of frost has passed. They should be placed in a sunny area and the soil kept moist.