A disease that is commonly confused with black root rot is Pythium root rot. Then you start to see the leaves getting dull, turning yellow, and looking rather sick. It’s easy and affordable to turn one coleus plant into many by taking stem cuttings. However, they do attract certain pests that can cause damage. They can also be propagated by seed indoors about 8-10 weeks prior to your last expected spring frost. Splotched sun-tolerant coleus is easy to grow if it has plenty of warmth and moisture. What causes this behavior? However, they do attract certain pests that can cause damage. The small, deeply-lobed leaves have an almost velvet-like appearance, and this cultivar tops out at just 10 to 12 inches tall, with a similar spread. Use a sharp, clean knife to cut off a two- to six-inch section of stem. Coleus ‘Black Prince’ The coleus is one of the most widespread species and most popular when it comes to choosing striking foliage plants for the garden. Coleus can be added to beds and borders for interest or grown in containers. But watch out, coleus plants will wilt if you don't care for them properly. With midnight-purple foliage, tinged with just a hint of red, and a compact growth habit, ‘Black Dragon’ makes a dramatic impact in beds, borders, and containers. Root and stem rot – Both root rot and stem rot can be associated with fungus, due mostly to overly wet soil from poor drainage or overwatering. Colors contrasts in the mottled foliage often are more intense in bright light. ... Coleus will eventually produce woody stems. Moist soil is essential for a healthy Coleus, but this is not the same as wet soil which will This is normally a result of not watering enough, cool draughts or cold temperatures in general. It´s next to all my other plants (spider, other coleus, peace lily, pothos, bromeliads, croton) and with the exception of the white coleus, this is the only one that is dying. Coleus plants make a beautiful addition to any garden. I´m so sad. You take steps to correct the watering issue, but the plants don’t bounce back. Start with a healthy, disease-free plant. Here are some tips to prevent your coleus from wilting. The many different colors of coleus make it an attractive plant for many gardeners. The coleus plant is vibrantly colored and can be used as either a ground covering, a border, or trained to grow up a trellis. Gardeners often turn these plants into standards. Leaf fall . In fact, the plants root so easily that you can even start cuttings in a glass of water. Chances are, your garden is suffering from root and stem rot. Coleus Problems. Sometimes black lesions can extend into the crown and on the plant stem near the soil line causing stems to be necrotic and soft and leaves to wilt. Grow it in partial shade to full sun. This article will get into the details of the different pests that attack this plant and what you can do about it. Today the main stalk is black, and there is only two secondary stalks that are not black. I´m definitively cutting them and trying to rescue them. You can pinch out the side shoots and support the stem with a stake. Several things can cause the leaves on the Coleus to drop off suddenly. My coleus plant is wilting and the base is turning black.? The leaves are still green, just wilted. Q. Coleus Plant - The leaf edges and tips sometimes turn black and curl. 1. Black Dragon. These types of garden rot is caused by one of two issues. Coleus is probably one of the easiest plants to grow and propagate. Trim the stem a half-inch below the bottom-most leaves and remove those leaves. So you may have overwatered your plants once or twice. Both the roots and stem become soft, turn brown/black, wilt and die. This is an indoor potted plant. Combine this foliage plant with other annual flowers for a spectacular display all summer long. Stem rot . 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