The Kong Rose coleus is a cold-tender, tropical plant that is prized for its brilliantly colorful foliage. The Kong coleus’ leaves are large, showy, and purple and reddish in color. The Kong coleus is best grown in pots in most climates, because it cannot survive winter temperatures any lower than 30 to 35 degrees Fahrenheit. The Kong coleus is easy to care for indoors, enjoying regular indoor air temperatures, and requiring only moderate watering and twice-monthly fertilizer applications during the spring and summer.
Pot your Kong Rose coleus in a well-draining, soil-less potting mixture with a pH of 5.5 to 6.0. At the time of re-potting the plant from the nursery container, mix into the potting medium a slow-release houseplant fertilizer according to the dosage instructions on the label.
Place your Kong Rose coleus in bright, indirect filtered sunlight. Maintain daytime air temperatures around the plant of 70 to 85 degrees Fahrenheit and nighttime temperatures of 62 to 65 degrees.
Water your coleus deeply two or three times each week during the growing season to keep the potting mix evenly moist. Keep the plant away from drafty areas, as well as heating or air conditioning vents, to prevent it from drying out.
Feed your Kong Rose coleus once every two weeks during the spring and summer with a liquid 15-0-15 NPK (nitrogen-phosphorus-potassium) fertilizer. Alternate every other feeding with a 20-10-20 NPK liquid fertilizer. Follow the dosage instructions for houseplants on the label.
Remove the flower spikes that grow from the plant throughout the summer to prevent the Kong coleus from going to seed and dying. Pinch off the flowers as soon as they emerge.