Both beautiful and hardy, Coleus is one of the easiest plants to grow. Starting from seed is simple and the seeds germinate and grow quickly. Some may prefer to pick up a plant or two from a local nursery where you can tell what the foliage already looks like. Part of the fun when growing Coleus from seeds is waiting to see the color and pattern variations start on the tiny seedlings.
Coleus is best known for colorful foliage with varied patterns. However, these plants do throw flower spikes in mid-late summer which pollinators love! Some may keep the flower spikes cut back to put more energy into the foliage. I find the coleus much more attractive without the flower spikes, but leave some flowers for the pollinators.
Growing Conditions
While Coleus can tolerate the sun, it prefers some shade. Bright indirect light makes the colors of the foliage more intense. Too much sun direct sun can cause the leaves to fade or burn. These gorgeous plants thrive in evenly moist, well-drained soil. Too much water will cause root rot. Do not let the soil dry out. Although this plant can be grown as a perennial in zones 9 or higher, in most areas, it is grown as an annual. Coleus does very well in containers, provided they are watered well, and the soil is well draining. These beautiful plants can even be grown indoors as a house plant.
Propagation
Cuttings taken from the plant can be rooted in water or planted directly in soil. I propagate via water throughout the summer. Taking more frequent cuttings not only multiplies the number of plants but it keeps the existing plants from getting too “leggy.” Keeping Coleus pruned will create a bushier appearance. It is recommended that the tops be pinched off every couple of weeks.
Fertilization
Feed coleus about once a month if they are in containers. A water-soluble fertilizer works fine. You can also use an extended-release fertilizer.
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