How to Grow a Rainbow Rose Naturally

Clear the soil around the Rainbow rose of all plant debris and keep it that way. Fallen flowers, twigs and leaves act as a beacon to pests. Preventing pest problems is a part of a natural integrated pest management system.

Apply organic mulch on the soil around the rose. Consider alfalfa hay, grass clippings or shredded leaves.

Water the Rainbow rose at the soil, not overhead, to prevent fungal diseases. Keep water off the foliage as much as possible. When you apply water, do so slowly so that soil isn't splashed onto the leaves.

Fertilize the Rainbow rose in the spring with an organic fertilizer. You can purchase natural rose fertilizer formulas or create your own by combining eight parts of alfalfa meal, two parts each of cottonseed meal, rock phosphate and bone meal and one part each of blood meal and Epsom salts. Use 1 cup of the fertilizer for each foot of Rainbow rosebush height and apply it in spring and fall.

Treat fungal diseases with a solution containing 1 tbsp. baking soda and 1 tbsp. light horticultural oil in 1 gallon of water. Spray the solution on the foliage monthly. Water the Rainbow rosebush the day before application. You can avoid burning the foliage by spraying the solution onto the plant in the evening or early in the morning.

Release beneficial insects, such as lady beetles, to help control pests.