Water is a combination of two atoms of hydrogen and one atom of oxygen. Oxygen makes up about 63% of a typical animal and about 77 percent of a typical plant. The element carbon is familiar to almost everyone in the form of charcoal, which is nearly pure carbon.ater is a combination of two atoms of hydrogen and one atom of oxygen. Oxygen makes up about 63% of a typical animal and about 77 percent of a typical plant. The element carbon is familiar to almost everyone in the form of charcoal, which is nearly pure carbon.
Prune the roses after the buds break dormancy. The major pruning period for knockout roses is in late winter to early spring, just as the bush begins to break out of its dormancy stage. 1  Check for bud formation on the stems of the plant. 2  You can still prune the plant even if new growth is starting to develop, though.
In general, you will be pruning just before the plant breaks dormancy after spring's final frost. This will be early in the year in warm climates, and anytime between January and April in cold climates. If it's old roses you are tending, prune them after blooming. They bear flowers on last year's wood. Cut away the dead wood first -- it will help you see the shape of the plant without distraction. It's a good idea to visit a public rose garden and find specimens of roses you are growing.