Companion planting makes a garden more attractive, fragrant and hardy against pestilent attacks. Many plants compliment one another when planted together, such as parsley and roses. Planting parsley as a companion to rose plants not only keeps pests away from the flowers, but it improves the fragrance of the rose's blooms. This is due in part to the rich nutrients that the parsley plant stores in its roots to disperse throughout its surroundings. Planting parsley as a companion plant to a rose bush is task that can be achieved in little time.
Break apart the ground at the base of the rose plant, digging about 2 inches beneath the surface with a hand trowel.
Sprinkle about a handful of peat moss on the broken earth near the rose plant.
Mix the peat moss and garden soil together to lighten the soil.
Press two or three parsley seeds into the soil in a formation surrounding the base of the rose plant.
Water the parsley when you water your roses, once a week. Give the plant at least 2 gallons of water per week to the plant. The parsley will sprout and thrive this way.