Mini rose bushes are perfect for container growing, or for when you want to enjoy the beauty of a rose bush but just don't have the room for a full-sized plant. Some mini rose bush varieties are very small--only 3 or 4 inches tall--while others can get up to 4 feet tall. Descended from a dwarf Chinese rose, these flowers are just as attractive, although not fragrant as their full-sized cousins. Just like large rose bushes, mini rose bushes need diligent care by the home gardener to thrive.
Locate the mini rose where it will receive sunlight for a minimum of six hours, more if possible.
Plant container mini roses in soil-less potted mix. Plant outdoor rose bushes in nutrient-rich but loose soil.
Keep the soil moist, not saturated. Don't plant the rose where standing water collects. Make sure there are drainage holes and that the water-catch tray (if there is one) is emptied immediately when the plant stops draining, if the rose is in a container.
Give the mini rose bushes a feeding once per week from spring through the summer, using 1/4 quarter of the dose as recommended on the label. Feed them with a water-soluble fertilizer high in potassium (5-5-10).
Reduce watering in the fall. Let the soil dry out to 1 inch below the surface before watering again. Prune the mini rose bush back by 1/3 before the first frost.
Inspect the rose for spider mites and other insect pests. Rinse the plant with an insecticidal soap to get rid of these bugs. Repeat as necessary over the course of the summer.