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.
The Rainbow Knock OutÂ® Rose. The natural inclination of The Knock OutÂ® Family of Roses is to grow to about 3â² wide x 4â² tall, but they are easily maintained at a smaller size through pruning. They are ideal for growing in mixed borders, in containers or as a hedge. Just like other roses, The Knock OutÂ® Family of Roses perform best when planted in full sun. The soil should be well drained and fertile. Plant the roses 4 feet apart to allow for room to grow and good air circulation. To keep the flowers coming feed your roses with a fertilizer blended especially for roses.